Number:

550

Originally Issued: 01/31/2018

Revised: 10/15/2019

Valid Through: 01/31/2020

ASC PROFILES LLC
2110 Enterprise Blvd.
West Sacramento, CA 95691 (800) 733-4955
www.ascprofiles.com
AEP SPAN AND ASC BUILDING PRODUCTS: SINGLE SKIN STEEL ROOF AND WALL PANELS WITH EXPOSED FASTENERS
CSI Section:
07 61 00 Sheet Metal Roofing
07 64 00 Sheet Metal Wall Cladding
RECOGNITION
ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners have been evaluated for use as exterior roof and wall covering panels. The structural and fire-resistance properties of the panels have been evaluated for compliance with the following codes:
2018, 2015, and 2012 International Building Code® (IBC)
2018, 2015, and 2012 International Residential Code® (IRC)
2019 and 2016 California Building Code® (CBC) – Attached supplement
2019 and 2016 California Residential Code® (CRC)
–Attached supplement
2017 City of Los Angeles Building Code (LABC) – Attached supplement
2017 City of Los Angeles Residential Code (LARC)
–Attached supplement
LIMITATIONS
Use of the ASC Profiles LLC Single Skin Steel Roof and Wall Panels and fasteners recognized in this report is subject to the following limitations:
Metal panels used in roof applications shall be applied to a solid or closely fitted deck, except where the roof covering is specifically designed to be applied to spaced support members. The panel installation tables in this report provide applicable substrate limitations.
Calculations demonstrating compliance with this report shall be submitted to the code official for approval. The calculations shall be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is to be constructed.
The manufacturer’s recommended roof slopes are defined within the OVERVIEW portion of this report. The minimum roof panel slopes shall conform to IBC Section 1507.4.2 or IRC Section R905.10.2, or as stated in this report.

Roof panel flashing requirements, when applicable, shall comply with IBC Section 1503.2 and 1503.3, or IRC Sections R903.2 and R903.3. Underlayment, including installation, shall comply with IBC Sections 1507.1 and 1507.4.5 or IRC Section R905.10.5, with consideration of applicable wind conditions.

Panels used on exterior walls shall be flashed in accordance with IBC Section 1405.4 or IRC Section R905.4.6 and be placed over a water-resistive barrier in accordance with IBC Sections 1402.2, 1403.2, and 1404.2 or IRC Section R703.1.

For modifications of panel installations, design of partial panels, panel penetrations and other panel discontinuities shall consider effects on strength and stiffness and be the responsibility of the design professional in accordance with IBC Section 1604.4, using rational engineering mechanics or in accordance with the manufacturer's installation instructions as approved by the building official.

Where panels are used as vertical diaphragm shear resistance in walls (shear wall) of light-frame construction, the walls shall be classified as a “bearing wall system” or “building frame system” with “light-framed walls with shear panels of all other materials” subject to the conditions of this classification as defined in ASCE/SEI 7, Section 12.2.

Panel use as protection of glazed openings located in wind-borne debris regions is outside the scope of this report.

Product Performance:

Structural: The tables provided in this report specify the gross and effective section properties, inward (positive) uniform allowable loads, allowable reactions at supports, outward (negative) uniform allowable loads, and diaphragm shear capacities, q (plf) and flexibility factors, F (10-6 in/lbs) for each of the panels described in Section 4.1 of this report.
Roof Classification: Roof assemblies complying with the requirements of IBC Section 1505.2, Exception 2, or IRC Section R902.1, Exception 2, are considered Class A roof assemblies. For other conditions, roof assemblies shall be listed as Class A, B, or C in accordance with ASTM E108 or UL 790, by an approved listing agency or shall be considered as a non-classified roofing. ASC Profiles shall be contacted for information on specific listed assemblies.
Wall Assembly Fire-Resistance: Wall panels are limited to installations where non-fire-resistance-rated construction is permitted by the IBC or IRC. Wall panels may be permitted in fire-resistance-rated wall assemblies based on successful testing in accordance with the requirements prescribed in IBC Section 703.

The product described in this Uniform Evaluation Service (UES) Report has been evaluated as an alternative material, design or method of construction in order to satisfy and comply with the intent of the provision of the code, as noted in this report, and for at least equivalence to that prescribed in the code in quality, strength, effectiveness, fire resistance, durability and safely, as applicable, in accordance with IBC Section 104.11. This document shall only be reproduced in its entirety.

Copyright © 2019 by International Association of Plumbing and Mechanical Officials. All rights reserved. Printed in the United States. Ph: 1-877-4IESRPT • Fax: 909.472.4171 web: www.uniform-es.org • 4755 East Philadelphia Street, Ontario, California 91761-2816 – USA
Page 1 of 143

Air and Water Infiltration: Air and water infiltration resistance is outside the scope of this report. Weather protection shall comply with Sections 2.4 and 2.5 of this report.
Hail Resistance: Hail resistance is outside the scope of this report.

Wind-blown Debris Resistance: Wind-blown debris resistance is outside the scope of this report.

PRODUCT USE

General Design and Installation shall be in accordance with the referenced codes in Section 1.0 of this report, the information provided in this report, ASC Profile’s product installation guides. Where conflicts occur, the more restrictive shall govern.

PRODUCT DESCRIPTION

Panels: The panels are available in various configurations as illustrated in the figures accompanying the tables in this report. Panels are either unpainted or are provided with a painted finish. Additional information on the panel configurations is provided in the OVERVIEW portion of this report.

The roof panels comply with requirements for metal roof panels in Chapter 15 of the IBC, and Section R905 of the IRC. The wall panels comply with requirements for steel wall coverings in Chapter 14 of the IBC, and Section R703 of the IRC.

Base Materials: All No. 18 and No. 20 gage panels are manufactured from sheet steel with G90 galvanized coatings conforming to ASTM A653 SS Grade 40.

All No. 22 and No. 24 gage panels are manufactured from AZ50 aluminum-zinc alloy coated steel sheet conforming to ASTM A792 SS grade 50, or from G90 galvanized sheet per ASTM A653 SS grade 50.

All No. 26 and No. 29 gage panels are manufactured from AZ50 aluminum-zinc alloy coated steel sheet conforming to ASTM A792 SS grade 80. The panels are also available prepainted in accordance with ASTM A755.

Fasteners: The fasteners size and type requirements are identified in the panel installation tables within this report. All fasteners shall be zinc-plated with an added corrosion resistant coating, or of a 300 series stainless steel construction. Self-tapping metal to metal fasteners shall comply with ASTM C1513. Fasteners installed into treated wood shall be 300 series stainless steel or designed specifically for use with treated wood.

Substrates: ASC Profiles roof and wall panels may be fastened to numerous substrates including, but not limited to, the following:

Cold formed steel in accordance with AISI S100
Hot rolled steel in accordance with AISC 360
Concrete in accordance with ACI 318
Plywood and OSB in accordance with DOC PS-1 and DOC PS-2
Dimensional lumber in accordance with ANSI/AWC NDS®

The panel installation tables within this report provide applicable substrate and fastening requirements. For other support conditions, structural calculations complying with the applicable code shall be submitted to the code official for approval.

5.0 IDENTIFICATION

A permanent label or a die-stamp label bearing the name and address of the manufacturers, the model number, and this evaluation report number (Evaluation Report ER-550) identifies the products listed in this report. The identification labels also include the IAPMO Uniform Evaluation Service Mark of Conformity, and either one of the following Marks of Conformity may be used:

    or	
IAPMO UES ER-550

6.0 SUBSTANTIATING DATA

Data submitted in conformance with IAPMO UES Evaluation Criteria Single Skin Steel Roof and Wall Panels, EC-011, revised July 2019. All product testing is from laboratories in compliance with ISO/IEC 17025.

7.0 STATEMENT OF RECOGNITION

This evaluation report describes the results of research carried out by IAPMO Uniform Evaluation Service on ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners to assess conformance to the codes and standards shown in Section 1.0 of this report and documents the product’s certification.

Brian Gerber, P.E., S.E.

Vice President, Technical Operations Uniform Evaluation Service
Richard Beck, P.E., CBO, MCP

Vice President, Uniform Evaluation Service
GP Russ Chaney CEO, The IAPMO Group

For additional information about this evaluation report please visit www.uniform-es.org or email at info@uniform-es.org

CONTENTS:

OVERVIEW:	5
GENERAL NOTES:	7
1.0: 2 1/2” Corrugated	10
2.0:  Box Rib	15
3.0:  Reversed Box Rib	28
4.0 Delta Rib	41
5.0 Delta Rib III	46
6.0 HR-36®	51
7.0 Reversed HR-36®	64
8.0 Mini-V-Beam	77
9.0 Nor-Clad®	90
10.0 Nu-Wave® Corrugated	95
11.0 PBR	106
12.0 Strata Rib®	110
13.0 Super-Span®	115
14.0 Reversed Super-Span®	124
U-Panel	131

OVERVIEW:

The technical information contained within this evaluation report will assist the user in selecting the appropriate AEP Span or ASC Building Products’ exposed fastener panels and associated panel attachments.
The report consists of the following product information:
General report notes and considerations
Panel views / fastener attachment locations
Panel section properties
Reaction at supports (web crippling) capacities
Inward (positive/ gravity) load tables
Outward (negative/ uplift) load tables
Diaphragm shear capacities

Panels:
The following is a list of panels contained within this report along with application limitations:

Panel:	Application:	Coverage:	Gage No.:	Minimum Slope*:	
2 ½" Corrugated	Roof, Wall	21 1/3" roof, 24" wall	29, 26	3:12	
Box Rib	Wall	36"	26, 24, 22, 20, 18	n/a	
Reversed Box Rib	Roof, Wall	36"	26, 24, 22, 20, 18	1:12	
Delta Rib	Roof, Wall	24"	29, 26	3:12	
Delta Rib III	Roof, Wall	36"	29, 26	3:12	
HR-36®	Roof, Wall	36"	26, 24, 22, 20, 18	1:12	
Reversed HR-36	Wall	36"	26, 24, 22, 20, 18	n/a	
Mini-V-Beam	Roof, Wall	32"	26, 24, 22, 20, 18	1:12	
Nor-Clad®	Roof, Wall	36"	29, 26	3:12	
Nu-Wave® Corrugated	Roof, Wall	32" roof, 34 2/3" wall	26, 24, 22, 20	3:12	
PBR	Roof, Wall	36"	26	1:12	
Strata Rib	Roof, Wall	36"	29, 26	3:12	
Super-Span	Roof, Wall	36"	26, 24, 22	1:12	
Reversed Super-Span	Wall	36"	26, 24, 22	n/a	
U-Panel	Roof, Wall	36"	29, 26, 24, 22	3:12	

* - ASC recommended minimum slopes. Minimum installed panel slopes shall not be less than those stated in IBC Section 1507.4.2 or IRC Section R905.10.2.

Fasteners:
Below is a summary of the fastener size and types specified within this report. Fastener size and type shall be compatible with the material type, thickness, and grade of the supporting members. Section 4.3 of this report provides additional fastener requirements. Hex washer head (HWH) fasteners are shown below. However, alternative fastener heads are acceptable. Fasteners require sealing washers for weather-tight applications.

	

	
#12 metal-to-metal
fastener (self-drilling point shown)	#14 metal-to-wood fastener (milled point shown)	#9 metal-to-wood fastener
(dimensional lumber only; self-piercing point shown)	Side Lap Screw (#12
minimum, #14 most common)	

To assist in the evaluation of panel shear resistance, fastener connection shear strengths have been provided in Table B of this report for #12 fasteners into steel supports. These capacities are based on AISI S100, Section E4.3 for fastener shear strength and shear strengths limited by tilting and bearing. The capacities listed within Table B of this report are used to determine edge (perimeter) fastening requirements for shear resistance. The general notes and shear and flexibility tables of this report provide further information.
Table B

#12 Fastener Connection Shear Strengths (lbs)	

Substrate
Material	Thickness
/ Grade	Panel Gauge / Grade	
	29ga (.0139") Gr80	26ga (.0173") Gr80	24ga (.0232") Gr50	22ga (.0294") Gr50	20ga (.0354") Gr40	18ga (.0459") Gr40	
	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	16ga (.0590") min.	222	333	276	414	293	440	371	557	378	567	491	737	
	18ga (.0459")	222	333	276	414	293	440	371	557	378	567	416	624	
	20ga (.0354")	222	333	276	414	286	429	294	441	282	423	282	423	
	22ga (.0294")	219	329	242	363	227	341	213	320	213	320	213	320	

Steel (Gr 33
min.)	16ga (.0590") min.	222	333	276	414	293	440	371	557	378	567	491	737	
	18ga (.0459")	222	333	276	414	291	437	319	479	306	459	288	432	
	20ga (.0354")	222	333	251	377	229	344	211	317	195	293	195	293	
	22ga (.0294")	203	305	199	299	167	251	148	222	148	222	148	222	

GENERAL NOTES:

The following are general notes and considerations for the various report sections:
Panel views, with common fastener locations:
1.	Included are drawings of the exposed fastener panels with basic dimensions and common fastener locations. These fastener locations correspond to the panel structural capacities contained within this report.
Panel section properties:
Section properties are calculated based on the panel geometry and the provisions of the American Iron and Steel Institute’s
North American Specification for the Design of Cold-Formed Steel Structural Members (AISI S100).
For calculating the deflection of a panel subject to uniform distributed loads, the hybrid moment of inertia is used and is equal to two times the effective moment of inertia plus the gross moment of inertia divided by three: (2Ie+ + Ig)/3 for positive moment or (2Ie- + Ig)/3 for negative moment.
Reaction at supports (web crippling) capacity:

The panel reaction at supports capacity is calculated in accordance with AISI S100, Section C3.4 for multi-web steel panels supported by framing that supports a uniform distributed load. Where calculation in accordance to AISI S100 C3.4 is not possible, the performance is evaluated from web crippling testing complying with AISI S909. The panel end and interior reactions listed in the tables are for uniformly distributed out-of-plane loads applied to the panels.
The ASD allowable (Pn/Ω) and LRFD factored (φPn) reactions presented in the tables are in pounds per linear foot (plf) running axially along the support for a given panel bearing length on the support. This is based on the web crippling capacity of an individual web multiplied by the number of webs per linear foot.
Reaction capacities listed in tables are acceptable for use with bearing lengths greater than those listed.

Positive (inward/ gravity) load capacity:

For uniform inward loading conditions, the appropriate support spacing is identified by referring to the inward load tables within this report. For conditions not defined by these tables, values are readily derived through standard engineering mechanics using the panel’s section properties.
The ASD allowable (W/Ω) and LRFD factored (φW) panel strengths and have been evaluated for bending, shear, and combined bending and shear.
The L/240, L/180, and L/120 values are based on allowable service load deflections.
Table values denoted by ‘- ‘indicate that capacities are limited by allowable panel strength, not deflection. In those instances, the panel strength limits are reached prior to the deflection limits (L/180, etc.) being reached.
Negative (outward/ uplift) load capacity:

Common panel attachment combinations and associated outward load capacities are provided within this report. Panel system negative (outward) uniform load capacities are based on fastener pullout, pullover, fastener tension, panel outward bending strength, and IBC Section 1604.3.1 deflection limit of L/60 for formed metal sheet roofing and siding.
Using the project’s defined outward wind loads, the appropriate Panel System Negative (Outward) Uniform Load Capacity table shall be reviewed to select a panel attachment that equals or exceeds the project wind load requirements. Not all possible fastener and substrate combinations are listed within the report. Alternative combinations are acceptable (i.e. attaching a panel assembly with fasteners into a concrete substrate), subject to approval of the code official, provided an analysis is performed by a registered design professional based on the failure modes noted above.
Fastener capacities in steel are based on AISI S100. Fastener capacities in wood substrates are based on ANSI/AWC NDS with a combined adjustment factor of 1.6 (2.16 LRFD).
Although nominal fastener sizes are provided in the tables, the appropriate fastener thread and point type shall still be properly specified for the selected substrate.
The 1-inch minimum fastener penetration specified for the Douglas Fir-Larch values applies to the usable thread length and this minimum depth does not include the tapered portion of the fastener.

Shear and flexibility tables:
Shear capacity (lbs/lineal ft) and flexibility factors (10-6 in/lb) are presented in the tables. Product capacities are determined in accordance with the American Iron and Steel Institute’s North American Standard for the Design of Profiled Steel Diaphragm Panels (AISI S310). Values are based on seismic governed loading conditions (Ωd=2.30) and are therefore conservative for applications governed by wind loads (Ωd=2.00).
Perimeter (edge) fastener spacing parallel to panel ribs has not been included within performance tables. Maximum spacing for edge fasteners parallel to panel flutes is defined as:
Max. edge fastener spacing = the lesser of 1) shear capacity per fastener (lb) / shear demand (lb/ft); or 2) the interior side-seam fastener spacing
The Fastener Connection Shear Strength performance table within this report to assist with the needed fastener capacity in the above equation.
Tabulated shear capacities apply to both roof and wall diaphragms.
Tables apply to panels installed over steel supports. Evaluation of shear and flexibility over wood framing is outside the scope of this report.
Capacities are based on panel gauge, span, support fastener size and type, support attachment pattern, side lap connection fastener and side lap fastener spacing. Capacities based on minimum #12 side lap and support screws.
Interpolation of diaphragm shear strength and flexibility factor between adjacent spans or side seam spacing is permitted provided the higher value does not exceed the lower value by more than 50 percent.

1.0: 2 1/2” Corrugated

Figure 1.1 - Basic Dimensions and Panel Attachment (2 1/2” Corrugated):
21.3/4 Pattern (roof/wall):		
24/4 Pattern (wall):		

Table 1.1 - Section Properties (2 1/2” Corrugated):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
29	0.67	0.0139	80	82	0.1960	0.0055	0.26	0.0217	0.0217	
26	0.83	0.0173	80	82	0.2439	0.0070	0.26	0.0269	0.0269	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
29	0.1021	0.0055	0.26	0.0209	0.0055	0.26	0.0209	0.0055	0.0055	
26	0.1407	0.0070	0.26	0.0269	0.0070	0.26	0.0269	0.0070	0.0070	

Table 1.2 - Inward (Positive) Uniform Allowable Loads (2 1/2” Corrugated):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
		ASD, W/Ω	283	125	80	56	41	31	25	20	14	
	Single Span	LRFD, φW	449	199	127	88	65	50	39	32	22	
		L/240
L/180	153
204	45
60	23
31	13
18	8
11	6
8	4
5	3
4	2
2	
		L/120	-	90	46	27	17	11	8	6	3	
		ASD, W/Ω	274	123	79	55	40	31	24	19	13	

29	Double Span	LRFD, φW	412	186	119	82	60	46	36	29	20	
		L/240
L/180	-
-	109
-	56
74	32
43	20
27	14
18	10
13	7
9	4
5	
		L/120	-	-	-	-	-	27	19	14	8	
		ASD, W/Ω	338	153	98	68	51	39	31	24	17	
	Triple Span	LRFD, φW	509	231	148	103	76	58	46	37	25	
		L/240
L/180	289
-	85
113	44
58	25
34	16
21	11
14	7
10	5
7	3
4	
		L/120	-	-	87	50	32	21	15	11	6	
		ASD, W/Ω	364	161	103	71	52	40	32	26	18	
	Single Span	LRFD, φW	577	255	163	113	83	64	50	41	28	
		L/240
L/180	195
260	57
76	29
39	17
23	11
14	7
10	5
7	4
5	2
3	
		L/120	-	115	59	34	21	14	10	7	4	
		ASD, W/Ω	355	158	101	70	52	39	31	25	17	

26	Double Span	LRFD, φW	534	238	153	106	78	59	47	38	26	
		L/240
L/180	-
-	138
-	71
94	41
55	26
34	17
23	12
16	9
12	5
7	
		L/120	-	-	-	-	52	35	24	18	10	
		ASD, W/Ω	440	198	127	88	65	50	39	31	22	
	Triple Span	LRFD, φW	662	298	192	132	98	75	59	48	33	
		L/240
L/180	368
-	108
144	55
74	32
43	20
27	14
18	10
13	7
9	4
5	
		L/120	-	-	111	64	40	27	19	14	8	

Table 1.3 - Allowable Reactions at Supports (2 1/2” Corrugated):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
		ASD (Pn/Ω) (lbs/ft width)	LRFD (φPn) (lbs/ft width)	
		1.5"	1.5"	
29	End
Interior	307	491
435	696	
26	End
Interior	605	966
825	1322	

2 1/2" Corrugated, 29ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			12"	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12	24/4
21.3/4	570	855	427	641	209	331	133	174	93	101	63	63	43	43	30	30	22	22	
	12ga
(.1050")	#12	24/4
21.3/4	570	855	427	641	209	331	133	174	93	101	63	63	43	43	30	30	22	22	
	14ga
(.0700")	#12	24/4
21.3/4	557	835	418	627	209	331	133	174	93	101	63	63	43	43	30	30	22	22	
	16ga
(.0590")	#12	24/4
21.3/4	469	704	352	528	209	331	133	174	93	101	63	63	43	43	30	30	22	22	
	18ga
(.0459")	#12	24/4
21.3/4	365	548	274	411	183	274	133	174	93	101	63	63	43	43	30	30	22	22	
	20ga
(.0354")	#12	24/4
21.3/4	282	422	211	317	141	211	113	169	93	101	63	63	43	43	30	30	22	22	
	22ga
(.0294")	#12	24/4
21.3/4	234	351	175	263	117	175	94	140	78	101	63	63	43	43	30	30	22	22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12	24/4
21.3/4	570	855	427	641	209	331	133	174	93	101	63	63	43	43	30	30	22	22	
	12ga
(.1050")	#12	24/4
21.3/4	570	855	427	641	209	331	133	174	93	101	63	63	43	43	30	30	22	22	
	14ga
(.0700")	#12	24/4
21.3/4	386	578	289	434	193	289	133	174	93	101	63	63	43	43	30	30	22	22	
	16ga
(.0590")	#12	24/4
21.3/4	325	487	244	366	162	244	130	174	93	101	63	63	43	43	30	30	22	22	
	18ga
(.0459")	#12	24/4
21.3/4	253	379	190	284	126	190	101	152	84	101	63	63	43	43	30	30	22	22	
	20ga
(.0354")	#12	24/4
21.3/4	195	292	146	219	97	146	78	117	65	97	56	63	43	43	30	30	22	22	
	22ga
(.0294")	#12	24/4
21.3/4	162	243	121	182	81	121	65	97	54	81	46	63	40	43	30	30	22	22	

Plywood & OSB	15/32"	#14	24/4
21.3/4	209	283	157	212	105	141	84	113	70	94	60	63	43	43	30	30	22	22	
	19/32"	#14	24/4
21.3/4	265	358	199	269	133	179	106	143	88	101	63	63	43	43	30	30	22	22	
	23/32"	#14	24/4
21.3/4	321	434	241	325	161	217	128	173	93	101	63	63	43	43	30	30	22	22	

Lumber (DFL)	
1" min	#9	24/4
21.3/4	388	523	291	392	194	262	133	174	93	101	63	63	43	43	30	30	22	22	
		#14	24/4
21.3/4	530	715	397	537	209	331	133	174	93	101	63	63	43	43	30	30	22	22	

2 1/2" Corrugated, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			12"	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12	24/4
21.3/4	709	1064	532	798	268	425	171	222	119	128	81	81	54	54	38	38	28	28	
	12ga
(.1050")	#12	24/4
21.3/4	709	1064	532	798	268	425	171	222	119	128	81	81	54	54	38	38	28	28	
	14ga
(.0700")	#12	24/4
21.3/4	557	835	418	627	268	418	171	222	119	128	81	81	54	54	38	38	28	28	
	16ga
(.0590")	#12	24/4
21.3/4	469	704	352	528	235	352	171	222	119	128	81	81	54	54	38	38	28	28	
	18ga
(.0459")	#12	24/4
21.3/4	365	548	274	411	183	274	146	219	119	128	81	81	54	54	38	38	28	28	
	20ga
(.0354")	#12	24/4
21.3/4	282	422	211	317	141	211	113	169	94	128	80	81	54	54	38	38	28	28	
	22ga
(.0294")	#12	24/4
21.3/4	234	351	175	263	117	175	94	140	78	117	67	81	54	54	38	38	28	28	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12	24/4
21.3/4	709	1064	532	798	268	425	171	222	119	128	81	81	54	54	38	38	28	28	
	12ga
(.1050")	#12	24/4
21.3/4	578	868	434	651	268	425	171	222	119	128	81	81	54	54	38	38	28	28	
	14ga
(.0700")	#12	24/4
21.3/4	386	578	289	434	193	289	154	222	119	128	81	81	54	54	38	38	28	28	
	16ga
(.0590")	#12	24/4
21.3/4	325	487	244	366	162	244	130	195	108	128	81	81	54	54	38	38	28	28	
	18ga
(.0459")	#12	24/4
21.3/4	253	379	190	284	126	190	101	152	84	126	72	81	54	54	38	38	28	28	
	20ga
(.0354")	#12	24/4
21.3/4	195	292	146	219	97	146	78	117	65	97	56	81	49	54	38	38	28	28	
	22ga
(.0294")	#12	24/4
21.3/4	162	243	121	182	81	121	65	97	54	81	46	69	40	54	36	38	28	28	

Plywood & OSB	15/32"	#14	24/4
21.3/4	209	283	157	212	105	141	84	113	70	94	60	81	52	54	38	38	28	28	
	19/32"	#14	24/4
21.3/4	265	358	199	269	133	179	106	143	88	119	76	81	54	54	38	38	28	28	
	23/32"	#14	24/4
21.3/4	321	434	241	325	161	217	128	173	107	128	81	81	54	54	38	38	28	28	

Lumber (DFL)	
1" min	#9	24/4
21.3/4	388	523	291	392	194	262	155	209	119	128	81	81	54	54	38	38	28	28	
		#14	24/4
21.3/4	530	715	397	537	265	358	171	222	119	128	81	81	54	54	38	38	28	28	

Table 1.6 - Shear and Flexibility (No. 29 gage 2 1/2” Corrugated):
29ga  2-1/2" Corrugated (24")   24/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	12"	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	516	831	508	818	498	802	500	805	350	560	257	411	197	315	155	249	126	202	
		79.5	62.3	45.1	38.2	33.8	30.4	28.1	26.1	24.7	
8"	q
F	490	789	449	722	421	679	417	672	350	560	257	411	197	315	155	249	126	202	
		80.1	63.7	47.0	40.2	35.7	32.5	30.8	28.9	27.3	
12"	q
F	440	708	449	722	371	597	377	607	338	544	257	411	197	315	155	249	126	202	
		81.2	63.7	48.3	41.3	37.9	34.3	32.9	30.7	30.0	
24"	q
F	440	708	385	620	298	479	323	520	284	456	252	405	197	315	155	249	126	202	
		81.2	65.1	50.3	42.8	39.7	38.0	37.0	33.9	33.6	
36"	q
F	440	708	385	620	298	479	251	404	216	348	252	405	197	315	155	249	126	202	
		81.2	65.1	50.3	45.4	42.8	38.0	37.0	36.7	36.7	
48"	q
F	440	708	385	620	298	479	251	404	216	348	189	304	167	269	155	249	126	202	
		81.2	65.1	50.3	45.4	42.8	41.6	41.2	36.7	36.7	
1
per span	q
F	440	708	385	620	298	479	251	404	216	348	189	304	167	269	150	242	126	202	
		81.2	65.1	50.3	45.4	42.8	41.6	41.2	41.3	41.8	
none	q
F	336	541	274	442	196	316	160	258	135	218	116	187	101	163	90	144	80	129	
		83.2	67.8	54.4	50.5	48.9	48.7	49.3	50.5	52.0	

Table 1.7 - Shear and Flexibility (26ga 2 1/2” Corrugated):
26ga  2-1/2" Corrugated (24")   24/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	12"	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	642	1034	632	1018	620	998	622	1001	494	790	363	581	278	445	220	351	178	285	
		48.4	38.5	28.7	24.7	22.2	20.2	19.0	17.8	17.1	
8"	q
F	610	982	558	899	525	845	519	836	494	790	363	581	278	445	220	351	178	285	
		48.9	39.8	30.4	26.5	24.0	22.1	21.4	20.3	19.4	
12"	q
F	547	881	558	899	462	743	469	756	421	677	363	581	278	445	220	351	178	285	
		49.9	39.8	31.5	27.5	25.9	23.8	23.3	21.9	21.8	
24"	q
F	547	881	479	771	371	597	402	647	353	568	313	504	278	445	220	351	178	285	
		49.9	41.0	33.3	28.9	27.6	27.0	27.0	24.8	25.0	
36"	q
F	547	881	479	771	371	597	313	503	269	433	313	504	278	445	220	351	178	285	
		49.9	41.0	33.3	31.2	30.3	27.0	27.0	27.3	27.8	
48"	q
F	547	881	479	771	371	597	313	503	269	433	235	378	208	335	220	351	178	285	
		49.9	41.0	33.3	31.2	30.3	30.3	30.7	27.3	27.8	
1
per span	q
F	547	881	479	771	371	597	313	503	269	433	235	378	208	335	187	301	169	273	
		49.9	41.0	33.3	31.2	30.3	30.3	30.7	31.4	32.4	
none	q
F	419	674	342	550	244	393	200	322	169	271	145	234	126	204	112	180	100	162	
		51.7	43.4	37.0	35.7	35.8	36.6	38.0	39.6	41.5	

2.0: Box Rib

Figure 2.1 - Basic Dimensions and Panel Attachment (Box Rib):
36/3 Pattern:		
36/6 Pattern:		

Table 2.1 - Section Properties (Box Rib):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section
Modulus	Negative Section
Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.91	0.0173	80	82	0.2663	0.1007	0.96	0.1783	0.1049	
24	1.21	0.0232	50	65	0.3570	0.1333	0.96	0.2378	0.1402	
22	1.54	0.0294	50	65	0.4524	0.1700	0.97	0.2997	0.1771	
20	1.85	0.0354	40	55	0.5446	0.2067	0.97	0.3590	0.2127	
18	2.40	0.0459	40	55	0.7059	0.2667	0.97	0.4610	0.0274	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0871	0.0630	0.66	0.0653	0.0947	1.09	0.0674	0.0756	0.0967	
24	0.1580	0.0963	0.70	0.1020	0.1333	1.01	0.1163	0.1087	0.1333	
22	0.2382	0.1333	0.73	0.1438	0.1700	1.00	0.1593	0.1456	0.1700	
20	0.3544	0.1833	0.80	0.1928	0.2067	0.97	0.2122	0.1911	0.2067	
18	0.5247	0.2567	0.85	0.2573	0.2667	0.97	0.2740	0.2600	0.2667	

Table 2.2 - Inward (Positive) Uniform Allowable Loads (Box Rib):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	
		ASD, W/Ω	391	250	174	98	63	43	32	24	16	
	Single Span	LRFD, φW	621	397	276	155	99	69	51	39	25	
		L/240
L/180	-
-	-
-	-
-	77
-	40
53	23
31	14
19	10
13	5
7	
		L/120	-	-	-	-	-	-	29	19	10	
		ASD, W/Ω	353	236	168	97	63	43	32	25	16	

26	Double Span	LRFD, φW	532	355	253	146	95	66	49	37	24	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	23
-	12
16	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	421	285	205	119	77	54	40	31	20	
	Triple Span	LRFD, φW	634	429	309	180	117	81	60	46	30	
		L/240
L/180	-
-	-
-	-
-	-
-	75
-	43
-	27
36	18
24	9
12	
		L/120	-	-	-	-	-	-	-	-	19	
		ASD, W/Ω	509	326	226	127	81	57	42	32	20	
	Single Span	LRFD, φW	808	517	359	202	129	90	66	50	32	
		L/240
L/180	-
-	-
-	-
-	111
-	57
76	33
44	21
28	14
19	7
9	
		L/120	-	-	-	-	-	-	42	28	14	
		ASD, W/Ω	533	351	248	142	91	63	47	36	23	

24	Double Span	LRFD, φW	803	528	373	213	138	95	71	54	34	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	34
-	17
23	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	646	429	305	175	114	79	58	44	28	
	Triple Span	LRFD, φW	973	647	459	264	171	119	87	67	43	
		L/240
L/180	-
-	-
-	-
-	-
-	108
-	62
-	39
52	26
35	13
18	
		L/120	-	-	-	-	-	-	-	-	27	
		ASD, W/Ω	717	459	319	179	115	80	59	45	29	
	Single Span	LRFD, φW	1138	728	506	285	182	126	93	71	46	
		L/240
L/180	-
-	-
-	-
-	149
-	76
102	44
59	28
37	19
25	10
13	
		L/120	-	-	-	-	-	-	56	37	19	
		ASD, W/Ω	741	485	342	195	126	87	64	49	31	

22	Double Span	LRFD, φW	1116	731	514	293	189	131	97	74	47	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	45
-	23
31	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	902	596	422	242	156	109	80	61	39	
	Triple Span	LRFD, φW	1358	897	635	364	235	164	121	92	59	
		L/240
L/180	-
-	-
-	-
-	-
-	144
-	83
-	52
70	35
47	18
24	
		L/120	-	-	-	-	-	-	-	-	36	

Table 2.2 (Cont’d) - Inward (Positive) Uniform Allowable Loads (Box Rib):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	
		ASD, W/Ω	770	493	342	192	123	86	63	48	31	
	Single Span	LRFD, φW	1221	781	543	305	195	136	100	76	49	
		L/240
L/180	-
-	-
-	-
-	-
-	100
-	58
77	37
49	24
33	13
17	
		L/120	-	-	-	-	-	-	-	-	25	
		ASD, W/Ω	777	511	362	207	133	92	68	52	34	

20	Double Span	LRFD, φW	1170	770	544	311	200	139	102	78	51	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	30
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	939	625	445	256	165	115	85	66	41	
	Triple Span	LRFD, φW	1414	941	669	385	249	174	128	99	62	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	109
-	69
-	46
62	24
32	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1027	657	457	257	164	114	84	64	41	
	Single Span	LRFD, φW	1630	1043	724	407	261	181	133	102	65	
		L/240
L/180	-
-	-
-	-
-	-
-	136
-	79
105	50
66	33
44	17
23	
		L/120	-	-	-	-	-	-	-	-	34	
		ASD, W/Ω	1003	661	466	267	172	120	88	68	43	

18	Double Span	LRFD, φW	1510	995	702	402	259	181	133	102	65	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	41
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1213	808	573	330	214	149	110	85	54	
	Triple Span	LRFD, φW	1828	1216	863	497	322	225	166	127	81	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	94
-	63
84	32
43	
		L/120	-	-	-	-	-	-	-	-	-	

Table 2.3 - Allowable Reactions at Supports (Box Rib):

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	240
382	275
430	305
471	355
539	367
568	421
640	467
700	543
802	
24	End
Interior	347
557	396
624	436
679	505
773	531
829	605
927	668
1010	773
1149	
22	End
Interior	540
874	612
972	673
1054	774
1193	826
1300	936
1446	1029
1569	1185
1774	
20	End
Interior	610
994	688
1100	754
1190	865
1340	933
1479	1053
1637	1154
1770	1323
1993	
18	End
Interior	987
1625	1107
1786	1207
1922	1376
2151	1510
2417	1693
2657	1847
2859	2106
3199	

Box Rib, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	284
142	426
213	236
118	355
177	163
89	259
133	104
71	166
106	72
59	115
89	53
51	84
76	41
41	65
65	26
26	41
41	
	12ga
(.1050")	#12
#12	36/6
36/3	355
177	532
266	284
142	426
213	236
118	355
177	163
89	259
133	104
71	166
106	72
59	115
89	53
51	84
76	41
41	65
65	26
26	41
41	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	104
56	166
84	72
46	115
70	53
40	84
60	41
35	65
52	26
26	41
41	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	72
39	115
59	53
34	84
50	41
29	65
44	26
23	41
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	41
23	65
34	26
18	41
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	26
14	41
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	284
142	426
213	236
118	355
177	163
89	259
133	104
71	166
106	72
59	115
89	53
51	84
76	41
41	65
65	26
26	41
41	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	104
58	166
87	72
48	115
72	53
41	84
62	41
36	65
54	26
26	41
41	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	53
28	83
41	41
24	65
36	26
19	41
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	26
16	41
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	26
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	26
16	41
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	53
28	75
37	41
24	65
33	26
19	41
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	104
53	143
72	72
44	115
60	53
38	84
51	41
33	65
45	26
26	41
36	

Box Rib, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	377
189	566
283	302
151	452
226	251
126	377
189	159
94	252
141	102
75	162
113	71
63	112
94	52
52	82
81	40
40	63
63	25
25	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	377
189	566
283	302
151	452
226	251
126	377
189	159
94	252
141	102
75	162
113	71
63	112
94	52
52	82
81	40
40	63
63	25
25	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	102
56	162
84	71
46	112
70	52
40	82
60	40
35	63
52	25
25	40
40	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	71
39	112
59	52
34	82
50	40
29	63
44	25
23	40
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	40
23	63
34	25
18	40
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	25
14	40
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	159
93	252
139	102
74	162
112	71
62	112
93	52
52	82
80	40
40	63
63	25
25	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	102
58	162
87	71
48	112
72	52
41	82
62	40
36	63
54	25
25	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	52
28	82
41	40
24	63
36	25
19	40
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	40
20	61
30	25
16	40
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	25
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	25
16	40
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	52
28	75
37	40
24	63
33	25
19	40
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	102
53	143
72	71
44	112
60	52
38	82
51	40
33	63
45	25
25	40
36	

Box Rib, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	478
239	717
358	382
191	573
287	319
159	478
239	224
119	356
179	143
96	228
143	100
80	158
119	73
68	116
102	56
56	89
89	36
36	57
57	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	278
139	418
209	209
104	313
157	143
84	228
125	100
70	158
104	73
60	116
90	56
52	89
78	36
36	57
57	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	93
46	139
70	73
40	116
60	56
35	89
52	36
28	57
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	67
34	101
50	56
29	88
44	36
23	57
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	46
23	68
34	36
18	55
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	186
93	279
139	143
74	223
112	100
62	158
93	73
53	116
80	56
46	89
70	36
36	57
56	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	116
58	174
87	96
48	145
72	73
41	116
62	56
36	89
54	36
29	57
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	48
24	72
36	36
19	57
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	32
16	49
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	32
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	48
24	65
33	36
19	52
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	88
44	119
60	73
38	102
51	56
33	89
45	36
26	57
36	

Box Rib, 20ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	487
243	730
365	389
195	584
292	325
162	487
243	241
122	365
183	154
97	244
146	107
81	170
122	79
70	125
104	60
60	95
91	38
38	61
61	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	278
139	418
209	209
104	313
157	154
84	244
125	107
70	170
104	79
60	125
90	60
52	95
78	38
38	61
61	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	93
46	139
70	79
40	119
60	60
35	95
52	38
28	61
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	67
34	101
50	59
29	88
44	38
23	61
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	46
23	68
34	37
18	55
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	186
93	279
139	149
74	223
112	107
62	170
93	79
53	125
80	60
46	95
70	38
37	61
56	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	116
58	174
87	96
48	145
72	79
41	124
62	60
36	95
54	38
29	61
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	48
24	72
36	38
19	58
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	32
16	49
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	32
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	48
24	65
33	38
19	52
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	88
44	119
60	76
38	102
51	60
33	89
45	38
26	61
36	

Table 2.8 - Outward (Negative) Uniform Allowable Loads (No. 18 gauge Box Rib):
Box Rib, 18ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	537
269	806
403	430
215	644
322	358
179	537
269	269
134	403
201	205
107	322
161	143
90	226
134	105
77	166
115	80
67	127
101	51
51	81
81	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	278
139	418
209	209
104	313
157	167
84	251
125	139
70	209
104	105
60	166
90	80
52	127
78	51
42	81
63	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	93
46	139
70	80
40	119
60	70
35	104
52	51
28	81
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	67
34	101
50	59
29	88
44	47
23	70
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	46
23	68
34	37
18	55
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	186
93	279
139	149
74	223
112	124
62	186
93	105
53	159
80	80
46	127
70	51
37	81
56	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	116
58	174
87	96
48	145
72	83
41	124
62	72
36	108
54	51
29	81
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	48
24	72
36	39
19	58
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	32
16	49
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	32
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	48
24	65
33	39
19	52
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	88
44	119
60	76
38	102
51	66
33	89
45	51
26	72
36	

Table 2.9 - Shear and Flexibility (No. 26 gauge Box Rib, 36/3):
26ga   Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	339	546	340	547	338	544	337	542	336	541	336	541	335	540	335	540	319	510	
		945.2	757.8	633.1	477.0	383.4	320.9	276.4	242.9	196.1	
8"	q
F	320	514	319	513	318	512	309	497	310	499	304	490	306	492	302	486	300	483	
		946.5	759.2	634.3	478.7	385.0	322.9	278.2	245.0	198.3	
12"	q
F	302	486	305	491	290	466	282	454	276	445	272	439	270	434	267	430	264	425	
		947.3	759.9	635.8	480.1	386.8	324.6	280.1	246.8	200.2	
24"	q
F	268	432	282	454	262	422	226	364	231	372	207	333	214	344	196	315	189	304	
		948.9	761.0	637.1	483.0	389.2	328.3	283.4	251.2	205.1	
36"	q
F	268	432	241	389	217	350	226	364	196	316	172	277	186	299	168	271	166	267	
		948.9	762.9	639.4	483.0	391.4	331.0	285.4	253.5	207.1	
48"	q
F	268	432	241	389	217	350	179	288	196	316	172	277	152	245	136	219	141	226	
		948.9	762.9	639.4	486.1	391.4	331.0	288.4	257.0	209.9	
1
per span	q
F	268	432	241	389	217	350	179	288	150	242	127	205	108	175	95	153	76	122	
		948.9	762.9	639.4	486.1	395.2	335.6	293.8	263.1	221.9	
none	q
F	198	318	168	270	145	234	108	175	84	136	69	110	58	94	51	82	41	66	
		952.2	767.1	644.4	492.7	403.5	345.6	305.5	276.5	238.6	

Table 2.10 - Shear and Flexibility (No. 26 gauge Box Rib, 36/6):
26ga   Box Rib   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	627	1009	627	1010	616	991	609	981	605	974	602	969	600	965	498	796	319	510	
		79.1	64.9	55.6	43.9	36.9	32.2	28.8	26.3	22.8	
8"	q
F	543	875	535	862	529	852	493	794	494	795	472	760	476	766	460	741	319	510	
		80.0	65.9	56.6	45.3	38.3	33.9	30.5	28.2	24.8	
12"	q
F	489	787	490	790	443	713	416	669	398	641	385	621	376	606	369	594	319	510	
		80.5	66.4	57.6	46.3	39.6	35.2	32.1	29.7	26.5	
24"	q
F	410	659	430	692	381	613	306	493	308	495	264	425	272	437	242	390	228	368	
		81.4	67.1	58.4	48.2	41.3	37.9	34.5	33.1	30.3	
36"	q
F	410	659	350	563	303	488	306	493	254	408	215	347	231	372	205	329	198	319	
		81.4	68.2	59.7	48.2	42.7	39.6	35.8	34.6	31.8	
48"	q
F	410	659	350	563	303	488	237	382	254	408	215	347	184	296	161	259	164	264	
		81.4	68.2	59.7	49.9	42.7	39.6	37.8	36.8	33.7	
1
per span	q
F	410	659	350	563	303	488	237	382	190	307	157	252	134	216	117	189	94	151	
		81.4	68.2	59.7	49.9	44.8	42.1	40.7	40.2	40.7	
none	q
F	297	479	246	396	208	334	153	246	120	193	98	158	84	135	73	118	59	94	
		82.8	70.0	61.9	52.8	48.5	46.5	45.8	46.0	48.0	

Table 2.11 - Shear and Flexibility (No. 24 gauge Box Rib, 36/3):
24ga   Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	361	581	361	581	359	578	358	576	357	575	357	575	357	574	356	574	356	573	
		456.3	366.3	306.5	231.6	186.6	156.7	135.3	119.2	96.8	
8"	q
F	340	547	339	545	338	544	328	529	330	531	323	521	325	524	321	516	319	513	
		457.4	367.5	307.6	233.1	188.1	158.4	136.9	121.0	98.6	
12"	q
F	321	517	324	522	308	496	299	482	294	473	290	466	287	461	284	457	281	452	
		458.1	368.1	308.8	234.3	189.6	159.8	138.5	122.6	100.3	
24"	q
F	285	459	300	483	279	449	240	387	246	395	220	354	227	366	208	335	201	323	
		459.5	369.1	310.0	236.8	191.7	163.1	141.3	126.4	104.5	
36"	q
F	285	459	257	413	231	372	240	387	208	336	183	294	198	318	179	288	177	284	
		459.5	370.7	311.9	236.8	193.6	165.3	143.0	128.4	106.2	
48"	q
F	285	459	257	413	231	372	190	306	208	336	183	294	162	260	145	233	149	240	
		459.5	370.7	311.9	239.4	193.6	165.3	145.7	131.4	108.7	
1
per span	q
F	285	459	257	413	231	372	190	306	160	257	137	220	116	186	101	162	81	130	
		459.5	370.7	311.9	239.4	196.9	169.3	150.3	136.7	119.1	
none	q
F	210	338	179	288	154	248	117	188	91	147	74	120	62	100	54	87	43	70	
		462.3	374.3	316.3	245.2	204.1	178.0	160.4	148.2	133.5	

Table 2.12 - Shear and Flexibility (No. 24 gauge Box Rib, 36/6):
24ga   Box Rib   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	666	1073	667	1073	654	1053	647	1042	643	1035	640	1030	637	1026	636	1023	490	784	
		40.3	33.5	29.1	23.5	20.2	18.0	16.4	15.2	13.5	
8"	q
F	577	930	569	916	563	906	524	844	525	845	502	808	506	814	489	788	482	776	
		41.1	34.4	30.0	24.8	21.4	19.4	17.8	16.8	15.2	
12"	q
F	519	836	521	839	471	758	442	712	423	681	410	660	400	644	392	632	381	614	
		41.6	34.8	30.9	25.6	22.6	20.6	19.2	18.1	16.7	
24"	q
F	435	701	457	736	405	652	325	524	327	527	281	452	289	465	257	414	243	391	
		42.3	35.4	31.6	27.3	24.0	22.9	21.2	21.0	20.0	
36"	q
F	435	701	372	599	322	519	325	524	270	434	229	369	245	395	217	350	210	339	
		42.3	36.3	32.7	27.3	25.2	24.3	22.4	22.3	21.2	
48"	q
F	435	701	372	599	322	519	252	406	270	434	229	369	196	316	171	276	174	281	
		42.3	36.3	32.7	28.7	25.2	24.3	24.1	24.3	22.9	
1
per span	q
F	435	701	372	599	322	519	252	406	204	328	168	271	143	230	125	201	100	160	
		42.3	36.3	32.7	28.7	27.1	26.5	26.6	27.2	29.0	
none	q
F	316	509	261	421	222	357	164	264	129	208	106	171	89	144	78	125	62	100	
		43.5	37.9	34.6	31.2	30.2	30.3	31.1	32.2	35.2	

Table 2.13 - Shear and Flexibility (No. 22 gauge Box Rib, 36/3):
22ga   Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	371	598	372	598	370	595	369	593	368	592	367	592	367	591	367	591	367	590	
		254.1	204.3	171.3	129.9	105.0	88.4	76.6	67.8	55.3	
8"	q
F	350	563	349	561	348	560	338	544	339	546	333	536	335	539	330	531	328	528	
		255.1	205.4	172.2	131.2	106.3	89.9	78.0	69.3	57.0	
12"	q
F	331	532	334	537	317	510	308	496	302	487	298	480	295	475	292	471	289	465	
		255.7	205.9	173.4	132.2	107.6	91.2	79.5	70.7	58.5	
24"	q
F	293	473	309	497	287	462	247	398	253	407	226	364	234	377	214	345	206	332	
		256.9	206.8	174.4	134.5	109.5	94.1	82.0	74.1	62.2	
36"	q
F	293	473	264	425	238	383	247	398	215	345	188	303	203	327	184	296	182	293	
		256.9	208.2	176.1	134.5	111.2	96.1	83.5	75.9	63.7	
48"	q
F	293	473	264	425	238	383	195	315	215	345	188	303	166	268	149	240	154	248	
		256.9	208.2	176.1	136.8	111.2	96.1	85.9	78.6	65.9	
1
per span	q
F	293	473	264	425	238	383	195	315	164	264	141	227	120	194	104	168	83	134	
		256.9	208.2	176.1	136.8	114.1	99.7	90.0	83.3	75.2	
none	q
F	216	348	184	296	159	256	121	196	95	153	78	125	65	105	56	90	45	72	
		259.5	211.4	180.0	141.9	120.5	107.3	98.9	93.5	88.0	

Table 2.14 - Shear and Flexibility (No. 22 gauge Box Rib, 36/6):
22ga   Box Rib   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	686	1104	686	1105	674	1084	666	1073	662	1066	659	1060	656	1056	654	1053	652	1049	
		23.9	20.2	17.8	14.7	12.9	11.7	10.8	10.2	9.3	
8"	q
F	594	957	586	943	579	933	539	869	540	870	516	831	521	838	504	811	496	799	
		24.6	21.0	18.5	15.8	14.0	13.0	12.1	11.6	10.8	
12"	q
F	535	861	537	864	485	780	455	733	436	701	422	679	412	663	404	650	393	632	
		25.0	21.3	19.3	16.6	15.0	14.0	13.3	12.8	12.1	
24"	q
F	448	722	471	758	417	671	335	539	337	542	289	466	297	479	265	426	250	402	
		25.7	21.9	20.0	18.0	16.3	16.1	15.1	15.3	15.0	
36"	q
F	448	722	383	616	332	534	335	539	277	447	236	380	253	407	224	360	217	349	
		25.7	22.7	20.9	18.0	17.4	17.3	16.2	16.5	16.1	
48"	q
F	448	722	383	616	332	534	260	418	277	447	236	380	203	327	177	284	180	289	
		25.7	22.7	20.9	19.3	17.4	17.3	17.7	18.2	17.6	
1
per span	q
F	448	722	383	616	332	534	260	418	211	340	174	281	148	239	129	207	103	165	
		25.7	22.7	20.9	19.3	19.0	19.3	19.9	20.8	23.0	
none	q
F	325	524	269	433	229	368	170	274	134	216	110	178	93	150	80	129	64	103	
		26.8	24.1	22.6	21.6	21.8	22.6	23.9	25.3	28.6	

Table 2.15 - Shear and Flexibility (No. 20 gauge Box Rib, 36/3):
20ga   Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	371	598	372	598	370	595	369	593	368	592	367	592	367	591	367	591	367	590	
		160.9	129.6	108.9	82.9	67.3	56.9	49.4	43.9	36.1	
8"	q
F	350	563	349	561	348	560	338	544	339	546	333	536	335	539	330	531	328	528	
		161.8	130.6	109.8	84.1	68.4	58.2	50.7	45.3	37.6	
12"	q
F	331	532	334	537	317	510	308	496	302	487	298	480	295	475	292	471	289	465	
		162.4	131.1	110.8	85.0	69.6	59.4	52.1	46.6	38.9	
24"	q
F	293	473	309	497	287	462	247	398	253	407	226	364	234	377	214	345	206	332	
		163.5	131.8	111.7	87.1	71.3	62.0	54.3	49.7	42.3	
36"	q
F	293	473	264	425	238	383	247	398	215	345	188	303	203	327	184	296	182	293	
		163.5	133.2	113.3	87.1	72.9	63.9	55.7	51.3	43.7	
48"	q
F	293	473	264	425	238	383	195	315	215	345	188	303	166	268	149	240	154	248	
		163.5	133.2	113.3	89.2	72.9	63.9	57.9	53.7	45.7	
1
per span	q
F	293	473	264	425	238	383	195	315	164	264	141	227	121	195	105	169	83	134	
		163.5	133.2	113.3	89.2	75.5	67.1	61.6	58.0	54.1	
none	q
F	216	348	184	296	159	256	122	197	96	155	79	127	66	107	57	92	45	72	
		165.8	136.1	116.8	93.9	81.4	74.1	69.8	67.3	65.8	

Table 2.16 - Shear and Flexibility (No. 20 gauge Box Rib, 36/6):
20ga   Box Rib   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	686	1104	686	1105	674	1084	666	1073	662	1066	659	1060	656	1056	654	1053	652	1049	
		16.2	13.8	12.3	10.5	9.3	8.6	8.0	7.6	7.1	
8"	q
F	594	957	586	943	579	933	539	869	540	870	516	831	521	838	504	811	496	799	
		16.8	14.5	13.0	11.4	10.3	9.8	9.2	8.9	8.5	
12"	q
F	535	861	537	864	485	780	455	733	436	701	422	679	412	663	404	650	393	632	
		17.2	14.9	13.8	12.2	11.3	10.7	10.3	10.0	9.6	
24"	q
F	448	722	471	758	417	671	335	539	337	542	289	466	297	479	265	426	250	402	
		17.8	15.4	14.3	13.5	12.4	12.6	12.0	12.3	12.3	
36"	q
F	448	722	383	616	332	534	335	539	277	447	236	380	253	407	224	360	217	349	
		17.8	16.1	15.2	13.5	13.4	13.7	12.9	13.4	13.3	
48"	q
F	448	722	383	616	332	534	260	418	277	447	236	380	204	328	177	286	180	289	
		17.8	16.1	15.2	14.7	13.4	13.7	14.3	15.0	14.7	
1
per span	q
F	448	722	383	616	332	534	260	418	212	341	175	282	149	240	129	208	103	165	
		17.8	16.1	15.2	14.7	14.9	15.5	16.3	17.3	19.6	
none	q
F	325	524	269	433	229	368	171	275	135	218	111	179	94	151	81	131	64	103	
		18.8	17.4	16.8	16.7	17.4	18.6	19.9	21.4	24.7	

Table 2.17 - Shear and Flexibility (No. 18 gauge Box Rib, 36/3):
18ga   Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	371	598	372	598	370	595	369	593	368	592	367	592	367	591	367	591	367	590	
		85.3	69.0	58.2	44.6	36.5	31.0	27.2	24.3	20.2	
8"	q
F	350	563	349	561	348	560	338	544	339	546	333	536	335	539	330	531	328	528	
		86.1	69.8	58.9	45.7	37.5	32.2	28.3	25.5	21.5	
12"	q
F	331	532	334	537	317	510	308	496	302	487	298	480	295	475	292	471	289	465	
		86.6	70.2	59.8	46.5	38.6	33.3	29.5	26.7	22.7	
24"	q
F	293	473	309	497	287	462	247	398	253	407	226	364	234	377	214	345	206	332	
		87.6	70.9	60.6	48.3	40.0	35.6	31.5	29.4	25.7	
36"	q
F	293	473	264	425	238	383	247	398	215	345	188	303	203	327	184	296	182	293	
		87.6	72.1	62.1	48.3	41.4	37.2	32.7	30.8	26.9	
48"	q
F	293	473	264	425	238	383	195	315	215	345	188	303	166	268	149	240	154	248	
		87.6	72.1	62.1	50.2	41.4	37.2	34.6	32.9	28.7	
1
per span	q
F	293	473	264	425	238	383	195	315	164	264	141	227	122	197	106	171	83	134	
		87.6	72.1	62.1	50.2	43.7	40.0	37.9	36.7	36.1	
none	q
F	216	348	184	296	159	256	123	199	97	156	80	128	67	108	58	93	45	72	
		89.6	74.6	65.1	54.3	48.9	46.2	45.0	44.9	46.3	

Table 2.18 - Shear and Flexibility (No. 18 gauge Box Rib, 36/6):
18ga   Box Rib   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	686	1104	686	1105	674	1084	666	1073	662	1066	659	1060	656	1056	654	1053	652	1049	
		9.6	8.4	7.7	6.7	6.2	5.8	5.5	5.3	5.0	
8"	q
F	594	957	586	943	579	933	539	869	540	870	516	831	521	838	504	811	496	799	
		10.2	9.1	8.3	7.6	7.0	6.8	6.5	6.5	6.2	
12"	q
F	535	861	537	864	485	780	455	733	436	701	422	679	412	663	404	650	393	632	
		10.5	9.4	8.9	8.2	7.9	7.6	7.5	7.4	7.3	
24"	q
F	448	722	471	758	417	671	335	539	337	542	289	466	297	479	265	426	250	402	
		11.1	9.8	9.4	9.4	8.9	9.3	9.0	9.4	9.6	
36"	q
F	448	722	383	616	332	534	335	539	277	447	236	380	253	407	224	360	217	349	
		11.1	10.4	10.2	9.4	9.8	10.3	9.8	10.4	10.5	
48"	q
F	448	722	383	616	332	534	260	418	277	447	236	380	205	330	178	287	180	289	
		11.1	10.4	10.2	10.4	9.8	10.3	11.0	11.8	11.7	
1
per span	q
F	448	722	383	616	332	534	260	418	212	341	176	284	150	242	130	210	103	166	
		11.1	10.4	10.2	10.4	11.1	11.9	12.8	13.8	16.0	
none	q
F	325	524	269	433	229	368	172	277	136	219	112	181	95	153	82	132	64	104	
		11.9	11.6	11.6	12.2	13.3	14.6	16.0	17.4	20.5	

3.0: Reversed Box Rib

Figure 3.1 - Basic Dimensions and Panel Attachment (Reversed Box Rib):
36/3 Pattern:		
36/5 Pattern:		

Table 3.1 - Section Properties (Reversed Box Rib):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section
Modulus	Negative Section
Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.91	0.0173	80	82	0.2663	0.1007	0.96	0.1049	0.1783	
24	1.22	0.0232	50	65	0.3572	0.1367	0.96	0.1404	0.2380	
22	1.54	0.0294	50	65	0.4527	0.1700	0.97	0.1774	0.3000	
20	1.85	0.0354	40	55	0.5446	0.2067	0.97	0.2127	0.3590	
18	2.40	0.0459	40	55	0.7059	0.2667	0.97	0.2740	0.4610	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0871	0.0947	0.43	0.0674	0.0630	0.86	0.0653	0.0967	0.0756	
24	0.1565	0.1333	0.51	0.1158	0.0963	0.83	0.1016	0.1344	0.1098	
22	0.2360	0.1700	0.54	0.1587	0.1333	0.79	0.1431	0.1700	0.1456	
20	0.3544	0.2067	0.58	0.2122	0.1833	0.75	0.1928	0.2067	0.1911	
18	0.5247	0.2667	0.58	0.2740	0.2567	0.70	0.2573	0.2667	0.2600	

Table 3.2 - Inward (Positive) Uniform Allowable Loads (Reversed Box Rib):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	12' -	0"	
		ASD, W/Ω	404	179	101	65	45	33	25	16	11	
	Single Span	LRFD, φW	641	285	160	102	71	52	40	26	18	
		L/240
L/180	-
-	-
-	99
-	51
-	29
39	18
25	12
17	6
8	4
5	
		L/120	-	-	-	-	-	-	25	13	7	
		ASD, W/Ω	344	163	94	61	42	31	24	15	10	

26	Double Span	LRFD, φW	518	246	141	92	64	47	36	22	16	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	15
-	9
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	411	199	115	76	53	39	30	19	13	
	Triple Span	LRFD, φW	620	300	174	114	79	59	45	29	20	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	35
-	23
-	12
16	7
9	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	578	257	145	92	64	47	36	23	16	
	Single Span	LRFD, φW	917	408	229	147	102	75	57	37	25	
		L/240
L/180	-
-	-
-	138
-	71
-	41
54	26
34	17
23	9
12	5
7	
		L/120	-	-	-	-	-	-	34	18	10	
		ASD, W/Ω	475	218	124	80	55	41	31	20	14	

24	Double Span	LRFD, φW	715	329	187	120	83	62	47	30	21	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	12
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	578	269	154	99	70	51	39	24	17	
	Triple Span	LRFD, φW	871	405	232	149	105	77	58	37	26	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	48
-	32
-	17
22	10
13	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	792	352	198	127	88	65	49	32	22	
	Single Span	LRFD, φW	1256	558	314	201	140	103	79	50	35	
		L/240
L/180	-
-	-
-	174
-	89
119	52
69	32
43	22
29	11
15	6
9	
		L/120	-	-	-	-	-	-	44	22	13	
		ASD, W/Ω	676	309	176	113	79	57	43	28	19	

22	Double Span	LRFD, φW	1017	465	264	170	118	87	66	43	29	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	27
-	16
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	825	382	218	141	98	72	55	35	24	
	Triple Span	LRFD, φW	1243	575	328	212	148	109	83	53	36	
		L/240
L/180	-
-	-
-	-
-	-
-	97
-	61
-	41
55	21
28	12
16	
		L/120	-	-	-	-	-	-	-	-	24	

Table 3.2 (Cont’d) - Inward (Positive) Uniform Allowable Loads (Reversed Box Rib):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	12' -	0"	
		ASD, W/Ω	847	376	212	136	94	69	53	34	24	
	Single Span	LRFD, φW	1344	597	336	215	149	110	84	54	37	
		L/240
L/180	-
-	-
-	212
-	108
-	63
84	39
53	26
35	14
18	8
10	
		L/120	-	-	-	-	-	-	53	27	16	
		ASD, W/Ω	717	331	188	122	84	62	48	30	20	

20	Double Span	LRFD, φW	1080	498	283	183	127	94	72	45	31	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	19
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	872	408	234	151	106	77	59	37	26	
	Triple Span	LRFD, φW	1313	614	352	227	159	116	89	57	39	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	75
-	50
-	26
34	15
20	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1094	486	273	175	122	89	68	44	30	
	Single Span	LRFD, φW	1735	771	434	278	193	142	108	69	48	
		L/240
L/180	-
-	-
-	273
-	140
-	81
108	51
68	34
46	17
23	10
13	
		L/120	-	-	-	-	-	-	68	35	20	
		ASD, W/Ω	953	441	251	162	113	83	64	40	28	

18	Double Span	LRFD, φW	1435	663	378	244	170	125	96	61	43	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	24
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1157	543	312	202	140	103	79	50	35	
	Triple Span	LRFD, φW	1743	818	469	303	211	156	119	76	53	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	96
-	64
-	33
44	19
25	
		L/120	-	-	-	-	-	-	-	-	-	

Table 3.3 - Allowable Reactions at Supports (Reversed Box Rib):

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	240
382	275
430	305
471	355
539	367
568	421
640	467
700	543
802	
24	End
Interior	347
557	396
624	436
679	505
773	531
829	605
927	668
1010	773
1149	
22	End
Interior	540
874	612
972	673
1054	774
1193	826
1300	936
1446	1029
1569	1185
1774	
20	End
Interior	610
994	688
1100	754
1190	865
1340	933
1479	1053
1637	1154
1770	1323
1993	
18	End
Interior	987
1625	1107
1786	1207
1922	1376
2151	1510
2417	1693
2657	1847
2859	2106
3199	

Reversed Box Rib, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	296
177	443
266	236
142	355
213	197
118	296
177	148
89	222
133	108
71	171
106	75
59	119
89	55
51	87
76	42
42	67
66	27
27	37
37	
	12ga
(.1050")	#12
#12	36/5
36/3	296
177	443
266	236
142	355
213	197
118	296
177	148
89	222
133	108
71	171
106	75
59	119
89	55
51	87
76	42
42	67
66	27
27	37
37	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	75
46	116
70	55
40	87
60	42
35	67
52	27
27	37
37	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	55
34	84
50	42
29	67
44	27
23	37
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	27
18	37
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	296
177	443
266	236
142	355
213	197
118	296
177	148
89	222
133	108
71	171
106	75
59	119
89	55
51	87
76	42
42	67
66	27
27	37
37	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	75
48	119
72	55
41	87
62	42
36	67
54	27
27	37
37	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	27
19	37
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	37
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	27
19	37
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	55
38	85
51	42
33	67
45	27
26	37
36	

Reversed Box Rib, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	314
189	471
283	251
151	377
226	209
126	314
189	157
94	236
141	116
75	183
113	80
63	127
94	59
54	94
81	45
45	72
71	29
29	46
46	
	12ga
(.1050")	#12
#12	36/5
36/3	314
189	471
283	251
151	377
226	209
126	314
189	157
94	236
141	116
75	183
113	80
63	127
94	59
54	94
81	45
45	72
71	29
29	46
46	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	59
40	94
60	45
35	72
52	29
28	46
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	45
29	72
44	29
23	46
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	29
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	116
74	183
112	80
62	127
93	59
53	94
80	45
45	72
70	29
29	46
46	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	59
41	94
62	45
36	72
54	29
29	46
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	29
19	46
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	29
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	59
38	85
51	45
33	72
45	29
26	46
36	

Reversed Box Rib, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	398
239	597
358	319
191	478
287	265
159	398
239	199
119	299
179	158
96	239
143	110
80	174
119	81
68	128
102	62
60	98
90	40
40	63
63	
	12ga
(.1050")	#12
#12	36/5
36/3	348
209	522
313	278
167	418
251	232
139	348
209	174
104	261
157	139
84	209
125	110
70	174
104	81
60	128
90	62
52	98
78	40
40	63
63	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	66
40	99
60	58
35	87
52	40
28	63
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	39
23	59
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	103
62	155
93	81
53	128
80	62
46	98
70	40
37	63
56	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	69
41	103
62	60
36	90
54	40
29	63
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	55
33	75
45	40
26	60
36	

Reversed Box Rib, 20ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	406
243	608
365	325
195	487
292	270
162	406
243	203
122	304
183	162
97	243
146	118
81	187
122	86
70	137
104	66
61	105
91	42
42	67
67	
	12ga
(.1050")	#12
#12	36/5
36/3	348
209	522
313	278
167	418
251	232
139	348
209	174
104	261
157	139
84	209
125	116
70	174
104	86
60	137
90	66
52	105
78	42
42	67
63	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	66
40	99
60	58
35	87
52	42
28	67
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	39
23	59
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	103
62	155
93	86
53	133
80	66
46	105
70	42
37	67
56	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	69
41	103
62	60
36	90
54	42
29	67
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	55
33	75
45	42
26	60
36	

Table 3.8 - Outward (Negative) Uniform Allowable Loads (No. 18 gauge Reversed Box Rib):
Reversed Box Rib, 18ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	448
269	671
403	358
215	537
322	298
179	448
269	224
134	336
201	179
107	269
161	149
90	224
134	112
77	177
115	85
67	136
101	55
54	87
81	
	12ga
(.1050")	#12
#12	36/5
36/3	348
209	522
313	278
167	418
251	232
139	348
209	174
104	261
157	139
84	209
125	116
70	174
104	99
60	149
90	85
52	131
78	55
42	87
63	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	66
40	99
60	58
35	87
52	46
28	70
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	39
23	59
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	103
62	155
93	89
53	133
80	77
46	116
70	55
37	87
56	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	69
41	103
62	60
36	90
54	48
29	72
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	55
33	75
45	44
26	60
36	

Table 3.9 - Shear and Flexibility (No. 26 gauge Reversed Box Rib, 36/3):
26ga   Reverse Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	338	543	338	545	336	542	336	540	335	540	335	539	335	539	335	539	319	510	
		313.1	252.2	211.7	161.0	130.6	110.3	95.8	84.9	69.7	
8"	q
F	312	503	313	503	313	504	304	489	306	493	300	484	303	487	299	481	297	479	
		314.6	253.7	213.1	162.9	132.3	112.3	97.7	87.1	71.9	
12"	q
F	288	464	295	475	278	447	272	437	268	431	265	426	263	423	261	420	259	416	
		315.7	254.5	214.8	164.4	134.3	114.2	99.8	89.1	74.0	
24"	q
F	240	386	265	426	243	391	205	330	215	346	190	306	201	323	183	294	178	286	
		317.7	255.9	216.4	167.9	137.1	118.5	103.5	94.0	79.4	
36"	q
F	240	386	210	338	186	299	205	330	175	281	151	244	170	274	153	246	154	248	
		317.7	258.4	219.5	167.9	139.8	121.8	105.8	96.7	81.7	
48"	q
F	240	386	210	338	186	299	149	239	175	281	151	244	133	214	117	188	127	204	
		317.7	258.4	219.5	172.0	139.8	121.8	109.6	101.0	85.0	
1
per span	q
F	240	386	210	338	186	299	149	239	120	193	98	158	84	135	73	118	59	94	
		317.7	258.4	219.5	172.0	144.8	127.9	116.7	109.1	100.5	
none	q
F	139	225	110	178	90	145	65	104	50	80	40	64	33	54	29	47	23	38	
		322.9	264.9	227.2	182.3	157.8	143.4	134.8	129.8	126.4	

Table 3.10 - Shear and Flexibility (No. 26 gauge Reversed Box Rib, 36/5):
26ga   Reverse Box Rib   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	530	854	533	857	525	845	522	841	520	838	519	836	518	834	498	796	319	510	
		24.5	21.2	19.2	16.6	15.1	14.0	13.3	12.7	12.0	
8"	q
F	454	731	453	730	453	729	427	687	432	695	416	670	422	679	410	661	319	510	
		25.6	22.5	20.4	18.3	16.7	15.9	15.1	14.8	14.1	
12"	q
F	398	641	410	660	371	597	355	572	346	556	339	545	334	537	330	531	319	510	
		26.4	23.2	21.8	19.6	18.3	17.5	16.9	16.5	16.0	
24"	q
F	311	500	349	561	308	495	246	396	258	415	222	357	234	377	209	336	201	323	
		27.8	24.2	23.0	22.2	20.6	21.0	20.0	20.7	20.6	
36"	q
F	311	500	262	422	225	363	246	396	203	327	170	273	194	312	171	275	171	275	
		27.8	25.9	25.0	22.2	22.6	23.4	21.8	22.8	22.5	
48"	q
F	311	500	262	422	225	363	172	277	203	327	170	273	145	233	127	204	137	220	
		27.8	25.9	25.0	24.9	22.6	23.4	24.6	26.0	25.1	
1
per span	q
F	311	500	262	422	225	363	172	277	135	218	111	179	95	152	83	133	66	107	
		27.8	25.9	25.0	24.9	25.9	27.5	29.3	31.3	35.8	
none	q
F	180	289	141	228	116	187	84	136	65	105	52	84	44	72	39	63	31	50	
		30.5	29.3	29.1	30.4	32.8	35.7	38.9	42.4	49.5	

Table 3.11 - Shear and Flexibility (No.24 gauge Reversed Box Rib, 36/3):
24ga   Reverse Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	359	578	360	579	358	576	357	575	356	574	356	573	356	573	356	573	356	572	
		152.8	123.5	104.2	79.9	65.3	55.5	48.6	43.4	36.1	
8"	q
F	332	534	332	535	333	536	323	520	325	524	319	514	322	518	317	511	316	509	
		154.1	124.9	105.4	81.5	66.8	57.3	50.3	45.3	38.0	
12"	q
F	306	493	314	505	295	475	289	465	284	458	281	453	279	449	277	447	275	443	
		155.0	125.6	106.9	82.8	68.5	58.9	52.1	47.0	39.8	
24"	q
F	255	410	282	453	258	415	218	350	229	368	202	326	213	343	194	313	189	304	
		156.8	126.8	108.3	85.9	70.9	62.7	55.2	51.2	44.4	
36"	q
F	255	410	223	360	197	318	218	350	186	299	161	259	181	291	163	262	163	263	
		156.8	129.0	110.9	85.9	73.2	65.5	57.2	53.6	46.4	
48"	q
F	255	410	223	360	197	318	158	254	186	299	161	259	142	228	124	200	135	217	
		156.8	129.0	110.9	89.4	73.2	65.5	60.5	57.3	49.3	
1
per span	q
F	255	410	223	360	197	318	158	254	129	208	106	170	89	144	78	125	62	100	
		156.8	129.0	110.9	89.4	77.6	70.7	66.6	64.3	62.7	
none	q
F	148	239	119	192	97	157	71	114	54	88	44	70	36	58	31	50	25	40	
		161.2	134.5	117.6	98.3	88.8	84.1	82.2	82.1	85.0	

Table 3.12 - Shear and Flexibility (No. 24 gauge Reversed Box Rib, 36/5):
24ga   Reverse Box Rib   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	564	907	566	911	558	898	555	893	553	890	552	888	551	887	550	885	490	784	
		14.2	12.6	11.7	10.5	9.8	9.3	8.9	8.7	8.3	
8"	q
F	483	777	482	776	481	775	454	730	459	739	442	712	448	721	436	702	433	696	
		15.2	13.7	12.8	11.9	11.1	10.9	10.5	10.4	10.2	
12"	q
F	423	681	436	702	394	634	378	608	367	591	360	580	355	571	351	565	345	555	
		15.9	14.3	13.9	13.1	12.6	12.3	12.1	12.0	11.8	
24"	q
F	330	532	371	597	327	526	262	421	274	441	236	379	249	401	222	357	214	344	
		17.0	15.2	15.0	15.3	14.5	15.3	14.7	15.6	15.8	
36"	q
F	330	532	279	449	240	386	262	421	216	348	182	293	206	331	181	292	182	293	
		17.0	16.6	16.7	15.3	16.2	17.4	16.3	17.4	17.4	
48"	q
F	330	532	279	449	240	386	185	297	216	348	182	293	154	249	135	217	145	234	
		17.0	16.6	16.7	17.7	16.2	17.4	18.7	20.1	19.7	
1
per span	q
F	330	532	279	449	240	386	185	297	146	234	120	193	101	163	88	142	70	113	
		17.0	16.6	16.7	17.7	19.1	20.9	22.8	24.8	28.9	
none	q
F	192	310	152	245	125	201	91	147	71	114	57	92	48	77	41	67	33	53	
		19.4	19.6	20.3	22.4	25.1	28.0	31.1	34.3	40.8	

Table 3.13 - Shear and Flexibility (No. 22 gauge Reversed Box Rib, 36/3):
22ga   Reverse Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	369	595	370	596	368	593	367	591	367	591	367	590	366	590	366	590	366	589	
		86.3	70.0	59.4	45.9	37.9	32.5	28.7	25.8	21.8	
8"	q
F	342	550	342	551	342	551	332	535	335	539	329	529	331	533	327	526	325	524	
		87.4	71.2	60.5	47.4	39.2	34.1	30.2	27.5	23.5	
12"	q
F	315	508	323	520	304	489	297	478	293	471	290	466	287	463	286	460	283	456	
		88.2	71.9	61.8	48.6	40.7	35.5	31.8	29.0	25.1	
24"	q
F	262	422	290	467	266	428	224	361	235	379	208	335	220	353	200	322	195	313	
		89.8	72.9	63.0	51.3	42.9	38.9	34.6	32.8	29.2	
36"	q
F	262	422	230	370	203	327	224	361	191	308	166	267	186	299	167	269	168	271	
		89.8	74.9	65.3	51.3	45.0	41.3	36.4	34.8	30.9	
48"	q
F	262	422	230	370	203	327	163	262	191	308	166	267	146	235	128	207	139	223	
		89.8	74.9	65.3	54.4	45.0	41.3	39.3	38.2	33.5	
1
per span	q
F	262	422	230	370	203	327	163	262	134	216	110	177	93	150	80	129	64	103	
		89.8	74.9	65.3	54.4	48.9	46.0	44.7	44.4	45.4	
none	q
F	153	246	124	199	101	163	74	119	57	92	46	74	38	61	32	52	26	41	
		93.7	79.8	71.3	62.3	58.8	57.9	58.6	60.2	65.2	

Table 3.14 - Shear and Flexibility (No. 22 gauge Reversed Box Rib, 36/5):
22ga   Reverse Box Rib   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	580	934	583	938	574	925	571	920	569	917	568	914	567	913	566	912	565	910	
		9.5	8.6	8.2	7.6	7.2	6.9	6.7	6.6	6.4	
8"	q
F	497	800	496	798	495	798	467	752	472	761	455	733	461	743	449	723	445	717	
		10.4	9.6	9.1	8.8	8.4	8.4	8.1	8.2	8.0	
12"	q
F	435	701	449	723	406	653	389	626	378	609	371	597	365	588	361	581	355	572	
		11.0	10.1	10.2	9.8	9.7	9.6	9.5	9.5	9.5	
24"	q
F	340	547	381	614	337	542	269	433	282	454	242	390	256	412	228	368	220	354	
		12.1	10.9	11.1	11.9	11.4	12.3	11.9	12.7	13.0	
36"	q
F	340	547	287	462	247	397	269	433	223	358	188	303	212	341	187	301	187	301	
		12.1	12.2	12.6	11.9	12.9	14.1	13.3	14.3	14.5	
48"	q
F	340	547	287	462	247	397	191	308	223	358	188	303	160	258	139	224	149	241	
		12.1	12.2	12.6	13.9	12.9	14.1	15.4	16.8	16.5	
1
per span	q
F	340	547	287	462	247	397	191	308	151	243	124	200	105	169	91	146	73	117	
		12.1	12.2	12.6	13.9	15.5	17.2	19.0	20.9	24.7	
none	q
F	198	319	158	254	130	209	95	153	74	119	60	97	50	81	43	69	34	55	
		14.2	14.8	15.8	18.1	20.8	23.6	26.4	29.3	35.2	

Table 3.15 - Shear and Flexibility (No. 20 gauge Reversed Box Rib, 36/3):
20ga   Reverse Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	369	595	370	596	368	593	367	591	367	591	367	590	366	590	366	590	366	589	
		55.4	45.2	38.6	30.1	25.1	21.7	19.3	17.5	15.0	
8"	q
F	342	550	342	551	342	551	332	535	335	539	329	529	331	533	327	526	325	524	
		56.4	46.3	39.5	31.4	26.3	23.2	20.7	19.0	16.5	
12"	q
F	315	508	323	520	304	489	297	478	293	471	290	466	287	463	286	460	283	456	
		57.2	46.9	40.7	32.6	27.7	24.4	22.1	20.4	18.0	
24"	q
F	262	422	290	467	266	428	224	361	235	379	208	335	220	353	200	322	195	313	
		58.6	47.8	41.9	35.0	29.6	27.5	24.7	23.9	21.7	
36"	q
F	262	422	230	370	203	327	224	361	191	308	166	267	186	299	167	269	168	271	
		58.6	49.6	44.0	35.0	31.5	29.8	26.3	25.7	23.3	
48"	q
F	262	422	230	370	203	327	163	262	191	308	166	267	146	235	129	208	139	223	
		58.6	49.6	44.0	37.8	31.5	29.8	28.9	28.7	25.7	
1
per span	q
F	262	422	230	370	203	327	163	262	134	216	111	179	94	151	81	131	64	103	
		58.6	49.6	44.0	37.8	35.1	34.0	33.9	34.4	36.5	
none	q
F	153	246	124	200	102	165	75	120	58	93	47	76	39	63	33	53	26	41	
		62.2	54.1	49.4	45.1	44.1	44.8	46.5	48.9	54.6	

Table 3.16 - Shear and Flexibility (No. 20 gauge Reversed Box Rib, 36/5):
20ga   Reverse Box Rib   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	580	934	583	938	574	925	571	920	569	917	568	914	567	913	566	912	565	910	
		7.1	6.6	6.4	6.0	5.7	5.6	5.5	5.4	5.3	
8"	q
F	497	800	496	798	495	798	467	752	472	761	455	733	461	743	449	723	445	717	
		8.0	7.5	7.2	7.1	6.9	6.9	6.7	6.8	6.8	
12"	q
F	435	701	449	723	406	653	389	626	378	609	371	597	365	588	361	581	355	572	
		8.5	8.0	8.1	8.0	8.0	8.0	8.0	8.1	8.1	
24"	q
F	340	547	381	614	337	542	269	433	282	454	242	390	256	412	228	368	220	354	
		9.5	8.7	9.0	9.9	9.6	10.5	10.2	11.0	11.3	
36"	q
F	340	547	287	462	247	397	269	433	223	358	189	304	212	341	188	302	187	301	
		9.5	9.8	10.4	9.9	11.0	12.2	11.5	12.4	12.6	
48"	q
F	340	547	287	462	247	397	191	308	223	358	189	304	161	259	140	225	149	241	
		9.5	9.8	10.4	11.8	11.0	12.2	13.4	14.7	14.5	
1
per span	q
F	340	547	287	462	247	397	191	308	152	245	125	201	106	171	92	148	73	117	
		9.5	9.8	10.4	11.8	13.3	15.0	16.7	18.4	21.9	
none	q
F	198	319	158	255	131	210	96	154	75	121	61	98	51	82	44	70	34	55	
		11.4	12.2	13.3	15.6	18.1	20.8	23.4	26.1	31.6	

Table 3.17 - Shear and Flexibility (No. 18 gauge Reversed Box Rib, 36/3):
18ga   Reverse Box Rib   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	369	595	370	596	368	593	367	591	367	591	367	590	366	590	366	590	366	589	
		30.2	24.9	21.5	17.1	14.4	12.7	11.4	10.5	9.2	
8"	q
F	342	550	342	551	342	551	332	535	335	539	329	529	331	533	327	526	325	524	
		31.1	25.9	22.3	18.2	15.5	14.0	12.6	11.8	10.6	
12"	q
F	315	508	323	520	304	489	297	478	293	471	290	466	287	463	286	460	283	456	
		31.8	26.4	23.4	19.2	16.7	15.1	13.9	13.0	11.8	
24"	q
F	262	422	290	467	266	428	224	361	235	379	208	335	220	353	200	322	195	313	
		33.0	27.2	24.4	21.4	18.5	17.8	16.2	16.1	15.1	
36"	q
F	262	422	230	370	203	327	224	361	191	308	166	267	186	299	167	269	168	271	
		33.0	28.7	26.2	21.4	20.1	19.8	17.6	17.7	16.5	
48"	q
F	262	422	230	370	203	327	163	262	191	308	166	267	146	235	130	209	139	223	
		33.0	28.7	26.2	23.8	20.1	19.8	19.9	20.4	18.6	
1
per span	q
F	262	422	230	370	203	327	163	262	134	216	112	180	95	153	82	132	64	103	
		33.0	28.7	26.2	23.8	23.2	23.5	24.3	25.4	28.1	
none	q
F	153	246	126	202	103	166	76	122	59	95	48	77	40	64	34	55	26	41	
		36.2	32.7	31.0	30.2	31.2	33.0	35.4	38.0	44.0	

Table 3.18 - Shear and Flexibility (No. 18 gauge Reversed Box Rib, 36/5):
18ga   Reverse Box Rib   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	580	934	583	938	574	925	571	920	569	917	568	914	567	913	566	912	565	910	
		5.0	4.7	4.6	4.4	4.3	4.3	4.2	4.2	4.1	
8"	q
F	497	800	496	798	495	798	467	752	472	761	455	733	461	743	449	723	445	717	
		5.7	5.5	5.4	5.5	5.3	5.4	5.3	5.4	5.4	
12"	q
F	435	701	449	723	406	653	389	626	378	609	371	597	365	588	361	581	355	572	
		6.2	5.9	6.2	6.3	6.3	6.4	6.5	6.5	6.6	
24"	q
F	340	547	381	614	337	542	269	433	282	454	242	390	256	412	228	368	220	354	
		7.0	6.5	6.9	7.9	7.7	8.6	8.3	9.1	9.4	
36"	q
F	340	547	287	462	247	397	269	433	223	358	189	304	212	341	188	302	187	301	
		7.0	7.5	8.2	7.9	8.9	10.0	9.5	10.4	10.6	
48"	q
F	340	547	287	462	247	397	191	308	223	358	189	304	162	261	141	227	150	241	
		7.0	7.5	8.2	9.5	8.9	10.0	11.2	12.3	12.2	
1
per span	q
F	340	547	287	462	247	397	191	308	153	246	126	203	107	172	93	149	73	117	
		7.0	7.5	8.2	9.5	11.0	12.5	14.0	15.6	18.8	
none	q
F	198	319	159	257	132	212	97	156	76	122	62	100	52	84	45	72	34	55	
		8.7	9.7	10.7	12.9	15.2	17.6	20.0	22.4	27.2	

4.0 Delta Rib

Figure 4.1 - Basic Dimensions and Panel Attachment (Delta Rib):

24/3 Pattern:		
24/6 Pattern:		

Table 4.1 - Section Properties (Delta Rib):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
29	0.67	0.0139	80	82	0.1967	0.0165	0.22	0.0277	0.0748	
26	0.83	0.0173	80	82	0.2448	0.0210	0.23	0.0344	0.0924	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
29	0.0387	0.0165	0.19	0.0227	0.0130	0.35	0.0249	0.0165	0.0142	
26	0.0539	0.0210	0.21	0.0320	0.0170	0.34	0.0314	0.0210	0.0183	

Table 4.2 - Inward (Positive) Uniform Allowable Loads (Delta Rib):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
		ASD, W/Ω	307	136	87	60	44	34	27	22	15	
	Single Span	LRFD, φW	488	216	138	96	70	54	43	35	24	
		L/240
L/180	-
-	135
-	69
-	40
53	25
34	17
23	12
16	9
12	5
7	
		L/120	-	-	-	-	-	34	24	17	10	
		ASD, W/Ω	301	141	91	64	48	37	28	23	16	

29	Double Span	LRFD, φW	453	213	138	97	72	55	43	35	24	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	21
-	12
16	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	360	173	113	80	59	46	36	29	20	
	Triple Span	LRFD, φW	543	260	170	120	89	69	54	44	30	
		L/240
L/180	-
-	-
-	-
-	76
-	48
-	32
43	22
30	16
22	9
13	
		L/120	-	-	-	-	-	-	-	-	19	
		ASD, W/Ω	433	191	122	85	62	48	38	31	21	
	Single Span	LRFD, φW	686	304	194	135	99	76	60	49	34	
		L/240
L/180	-
-	172
-	88
117	51
68	32
43	22
29	15
20	11
15	6
8	
		L/120	-	-	-	-	-	43	30	22	13	
		ASD, W/Ω	395	181	117	82	60	47	36	29	20	

26	Double Span	LRFD, φW	594	273	176	123	90	70	55	44	31	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	27
-	15
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	480	223	146	102	75	58	46	37	25	
	Triple Span	LRFD, φW	723	336	219	153	113	87	69	56	38	
		L/240
L/180	-
-	-
-	-
-	96
-	61
-	41
54	29
38	21
28	12
16	
		L/120	-	-	-	-	-	-	-	-	24	

Table 4.3 - Allowable Reactions at Supports (Delta Rib):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
		ASD (Pn/Ω) (lbs/ft width)	LRFD (φPn) (lbs/ft width)	
		1.5"	1.5"	
29	End
Interior	87
56	140
90	
26	End
Interior	164
205	263
328	

Delta Rib, 29ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	24/6
24/3	510
321	809
481	227
214	359
321	145
145	230
230	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	12ga
(.1050")	#12
#12	24/6
24/3	510
321	809
481	227
214	359
321	145
145	230
230	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	14ga
(.0700")	#12
#12	24/6
24/3	510
313	809
470	227
209	359
313	145
145	230
230	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	16ga
(.0590")	#12
#12	24/6
24/3	510
264	792
396	227
176	359
264	145
141	230
211	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	18ga
(.0459")	#12
#12	24/6
24/3	411
205	616
308	227
137	359
205	145
110	230
164	101
91	160
137	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	20ga
(.0354")	#12
#12	24/6
24/3	317
158	475
238	211
106	317
158	145
84	230
127	101
70	160
106	74
60	117
91	57
53	90
79	45
45	71
70	36
36	56
56	25
25	32
32	
	22ga
(.0294")	#12
#12	24/6
24/3	263
132	395
197	175
88	263
132	140
70	211
105	101
58	160
88	74
50	117
75	57
44	90
66	45
39	71
58	36
35	56
53	25
25	32
32	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	24/6
24/3	510
321	809
481	227
214	359
321	145
145	230
230	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	12ga
(.1050")	#12
#12	24/6
24/3	510
321	809
481	227
214	359
321	145
145	230
230	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	14ga
(.0700")	#12
#12	24/6
24/3	434
217	651
325	227
145	359
217	145
116	230
174	101
96	160
145	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	16ga
(.0590")	#12
#12	24/6
24/3	366
183	548
274	227
122	359
183	145
97	230
146	101
81	160
122	74
70	117
104	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
	18ga
(.0459")	#12
#12	24/6
24/3	284
142	427
213	190
95	284
142	145
76	228
114	101
63	160
95	74
54	117
81	57
47	90
71	45
42	71
63	36
36	56
56	25
25	32
32	
	20ga
(.0354")	#12
#12	24/6
24/3	219
110	329
165	146
73	219
110	117
58	175
88	97
49	146
73	74
42	117
63	57
37	90
55	45
32	71
49	36
29	56
44	25
24	32
32	
	22ga
(.0294")	#12
#12	24/6
24/3	182
91	273
137	121
61	182
91	97
49	146
73	81
40	121
61	69
35	104
52	57
30	90
46	45
27	71
40	36
24	56
36	25
20	32
30	

Plywood & OSB	15/32"	#14
#14	24/6
24/3	236
118	318
159	157
79	212
106	126
63	170
85	101
52	141
71	74
45	117
61	57
39	90
53	45
35	71
47	36
31	56
42	25
25	32
32	
	19/32"	#14
#14	24/6
24/3	299
149	403
202	199
100	269
134	145
80	215
107	101
66	160
90	74
57	117
77	57
50	90
67	45
44	71
60	36
36	56
54	25
25	32
32	
	23/32"	#14
#14	24/6
24/3	361
181	488
244	227
120	325
163	145
96	230
130	101
80	160
108	74
69	117
93	57
57	90
81	45
45	71
71	36
36	56
56	25
25	32
32	

Lumber (DFL)	
1" min	#9
#9	24/6
24/3	436
218	589
294	227
145	359
196	145
116	230
157	101
97	160
131	74
74	117
112	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	
		#14
#14	24/6
24/3	510
298	805
402	227
199	359
268	145
145	230
215	101
101	160
160	74
74	117
117	57
57	90
90	45
45	71
71	36
36	56
56	25
25	32
32	

Delta Rib, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	24/6
24/3	717
399	1138
598	319
266	506
399	204
204	324
319	142
142	225
225	104
104	165
165	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	
	12ga
(.1050")	#12
#12	24/6
24/3	717
399	1138
598	319
266	506
399	204
204	324
319	142
142	225
225	104
104	165
165	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	
	14ga
(.0700")	#12
#12	24/6
24/3	627
313	940
470	319
209	506
313	204
167	324
251	142
139	225
209	104
104	165
165	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	
	16ga
(.0590")	#12
#12	24/6
24/3	528
264	792
396	319
176	506
264	204
141	324
211	142
117	225
176	104
101	165
151	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	
	18ga
(.0459")	#12
#12	24/6
24/3	411
205	616
308	274
137	411
205	204
110	324
164	142
91	225
137	104
78	165
117	80
68	126
103	63
61	100
91	51
51	73
73	35
35	42
42	
	20ga
(.0354")	#12
#12	24/6
24/3	317
158	475
238	211
106	317
158	169
84	253
127	141
70	211
106	104
60	165
91	80
53	126
79	63
47	100
70	51
42	73
63	35
35	42
42	
	22ga
(.0294")	#12
#12	24/6
24/3	263
132	395
197	175
88	263
132	140
70	211
105	117
58	175
88	100
50	150
75	80
44	126
66	63
39	100
58	51
35	73
53	35
29	42
42	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	24/6
24/3	717
399	1138
598	319
266	506
399	204
204	324
319	142
142	225
225	104
104	165
165	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	
	12ga
(.1050")	#12
#12	24/6
24/3	651
325	976
488	319
217	506
325	204
174	324
260	142
142	225
217	104
104	165
165	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	
	14ga
(.0700")	#12
#12	24/6
24/3	434
217	651
325	289
145	434
217	204
116	324
174	142
96	225
145	104
83	165
124	80
72	126
108	63
63	100
96	51
51	73
73	35
35	42
42	
	16ga
(.0590")	#12
#12	24/6
24/3	366
183	548
274	244
122	366
183	195
97	292
146	142
81	225
122	104
70	165
104	80
61	126
91	63
54	100
81	51
49	73
73	35
35	42
42	
	18ga
(.0459")	#12
#12	24/6
24/3	284
142	427
213	190
95	284
142	152
76	228
114	126
63	190
95	104
54	163
81	80
47	126
71	63
42	100
63	51
38	73
57	35
32	42
42	
	20ga
(.0354")	#12
#12	24/6
24/3	219
110	329
165	146
73	219
110	117
58	175
88	97
49	146
73	84
42	125
63	73
37	110
55	63
32	97
49	51
29	73
44	35
24	42
37	
	22ga
(.0294")	#12
#12	24/6
24/3	182
91	273
137	121
61	182
91	97
49	146
73	81
40	121
61	69
35	104
52	61
30	91
46	54
27	81
40	49
24	73
36	35
20	42
30	

Plywood & OSB	15/32"	#14
#14	24/6
24/3	236
118	318
159	157
79	212
106	126
63	170
85	105
52	141
71	90
45	121
61	79
39	106
53	63
35	94
47	51
31	73
42	35
26	42
35	
	19/32"	#14
#14	24/6
24/3	299
149	403
202	199
100	269
134	159
80	215
107	133
66	179
90	104
57	154
77	80
50	126
67	63
44	100
60	51
40	73
54	35
33	42
42	
	23/32"	#14
#14	24/6
24/3	361
181	488
244	241
120	325
163	193
96	260
130	142
80	217
108	104
69	165
93	80
60	126
81	63
54	100
72	51
48	73
65	35
35	42
42	

Lumber (DFL)	
1" min	#9
#9	24/6
24/3	436
218	589
294	291
145	392
196	204
116	314
157	142
97	225
131	104
83	165
112	80
73	126
98	63
63	100
87	51
51	73
73	35
35	42
42	
		#14
#14	24/6
24/3	596
298	805
402	319
199	506
268	204
159	324
215	142
132	225
179	104
104	165
153	80
80	126
126	63
63	100
100	51
51	73
73	35
35	42
42	

Table 4.6 - Shear and Flexibility (No. 29 gauge Delta Rib):
29ga   Delta Rib   24/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	392	631	388	625	390	628	386	621	388	624	384	618	357	571	289	462	201	321	
		17.1	15.0	14.0	13.7	13.1	13.0	12.7	12.6	12.3	
8"	q
F	348	560	335	540	336	541	336	542	337	542	319	514	322	518	289	462	201	321	
		19.0	17.4	16.6	16.0	15.6	16.1	15.8	15.5	15.8	
12"	q
F	348	560	293	472	305	490	277	445	288	464	267	430	278	448	261	421	201	321	
		19.0	19.2	17.9	18.8	17.9	18.7	17.9	18.7	18.8	
24"	q
F	290	467	225	362	258	415	228	368	204	328	183	295	211	340	195	313	168	270	
		21.2	22.4	20.1	21.4	22.8	24.4	22.1	23.3	26.0	
36"	q
F	290	467	225	362	190	306	163	263	204	328	183	295	166	268	152	244	129	208	
		21.2	22.4	24.2	26.2	22.8	24.4	26.0	27.7	31.2	
48"	q
F	290	467	225	362	190	306	163	263	143	230	127	204	166	268	152	244	129	208	
		21.2	22.4	24.2	26.2	28.5	30.9	26.0	27.7	31.2	
1
per span	q
F	290	467	225	362	190	306	163	263	143	230	127	204	113	181	101	162	83	134	
		21.2	22.4	24.2	26.2	28.5	30.9	33.3	35.8	40.9	
none	q
F	170	274	119	191	94	151	77	125	66	105	57	91	50	80	44	71	36	58	
		26.5	30.5	34.2	38.3	42.6	47.0	51.4	55.9	65.1	

Table 4.7 - Shear and Flexibility (No. 26 gauge Delta Rib):
26ga   Delta Rib   24/3 Attachment Pattern	Support Screw: #12 HWH  Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	488	786	483	778	486	782	480	773	482	777	478	770	480	773	408	653	283	453	
		12.4	11.3	10.7	10.6	10.3	10.3	10.0	10.1	9.9	
8"	q
F	433	697	417	672	418	673	419	674	419	675	397	640	400	645	403	649	283	453	
		14.1	13.5	13.0	12.7	12.5	13.1	12.8	12.7	13.0	
12"	q
F	433	697	365	588	379	610	344	554	359	578	333	536	346	558	325	524	283	453	
		14.1	15.0	14.2	15.2	14.5	15.4	14.8	15.6	15.7	
24"	q
F	361	581	280	451	321	517	284	458	254	408	228	367	263	423	242	390	209	336	
		16.1	17.9	16.2	17.5	19.0	20.5	18.5	19.7	22.1	
36"	q
F	361	581	280	451	236	380	203	327	254	408	228	367	207	333	189	304	161	259	
		16.1	17.9	19.8	21.9	19.0	20.5	22.0	23.6	26.8	
48"	q
F	361	581	280	451	236	380	203	327	178	286	158	254	207	333	189	304	161	259	
		16.1	17.9	19.8	21.9	24.1	26.3	22.0	23.6	26.8	
1
per span	q
F	361	581	280	451	236	380	203	327	178	286	158	254	141	227	126	203	104	168	
		16.1	17.9	19.8	21.9	24.1	26.3	28.6	30.9	35.5	
none	q
F	212	342	148	239	118	189	97	156	82	132	71	115	63	101	56	90	45	73	
		20.9	25.2	28.8	32.7	36.7	40.7	44.8	48.9	57.2	
Note: Shear Tables 4.6 & 4.7 based on 24/3 attachment pattern.  Values acceptable for use (conservative) for 24/6 attachment pattern.

5.0 Delta Rib III

Figure 5.1 - Basic Dimensions and Panel Attachment (Delta Rib III):

36/4 Pattern:		
36/8 Pattern:		

Table 5.1 - Section Properties (Delta Rib III):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
29	0.65	0.0139	80	82	0.1900	0.0127	0.19	0.0218	0.0681	
26	0.80	0.0173	80	82	0.2365	0.0157	0.19	0.0270	0.0839	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
29	0.0273	0.0123	0.16	0.0179	0.0093	0.32	0.0191	0.0124	0.0104	
26	0.0383	0.0157	0.17	0.0245	0.0123	0.31	0.0242	0.0157	0.0134	

Table 5.2 - Inward (Positive) Uniform Allowable Load Table (Delta Rib III):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
		ASD, W/Ω	242	107	68	48	35	27	21	17	12	
	Single Span	LRFD, φW	384	170	109	75	55	42	34	27	19	
		L/240
L/180	-
-	102
-	52
-	30
40	19
25	13
17	9
12	7
9	4
5	
		L/120	-	-	-	-	-	25	18	13	8	
		ASD, W/Ω	238	110	71	49	36	28	22	17	12	

29	Double Span	LRFD, φW	359	165	107	75	55	42	33	26	19	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	22
-	16
-	9
-	
		L/180	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	289	135	88	62	45	35	27	23	15	
	Triple Span	LRFD, φW	435	204	133	93	68	53	41	34	23	
		L/240
L/180	-
-	-
-	-
-	57
-	36
-	24
32	17
23	12
16	7
10	
		L/120	-	-	-	-	-	-	-	-	14	
		ASD, W/Ω	332	147	94	65	48	37	29	24	16	
	Single Span	LRFD, φW	527	233	149	104	76	58	46	37	26	
		L/240
L/180	-
-	128
-	66
88	38
51	24
32	16
21	11
15	8
11	5
6	
		L/120	-	-	-	-	48	32	23	16	10	
		ASD, W/Ω	310	141	90	63	46	36	28	23	16	

26	Double Span	LRFD, φW	466	212	136	95	70	54	42	34	24	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	27
-	20
-	11
15	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	379	174	112	78	58	45	35	28	20	
	Triple Span	LRFD, φW	570	262	169	118	87	67	53	42	30	
		L/240
L/180	-
-	-
-	-
-	72
-	45
-	30
40	21
28	16
21	9
12	
		L/120	-	-	-	-	-	-	-	-	18	

Table 5.3 - Allowable Reactions at Supports (Delta Rib III):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
		ASD (Pn/Ω) (lbs/ft width)	LRFD (φPn) (lbs/ft width)	
		1.5"	1.5"	
29	End
Interior	54	86
44	71	
26	End
Interior	86	137
90	144	

Delta Rib III, 29ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	401
285	637
427	178
178	283
283	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	12ga
(.1050")	#12
#12	36/8
36/4	401
285	637
427	178
178	283
283	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	14ga
(.0700")	#12
#12	36/8
36/4	401
278	637
418	178
178	283
278	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	16ga
(.0590")	#12
#12	36/8
36/4	401
235	637
352	178
156	283
235	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	18ga
(.0459")	#12
#12	36/8
36/4	365
183	548
274	178
122	283
183	114
97	181
146	79
79	126
122	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	20ga
(.0354")	#12
#12	36/8
36/4	282
141	422
211	178
94	282
141	114
75	181
113	79
63	126
94	58
54	92
80	45
45	71
70	35
35	56
56	29
29	41
41	20
20	24
24	
	22ga
(.0294")	#12
#12	36/8
36/4	234
117	351
175	156
78	234
117	114
62	181
94	79
52	126
78	58
45	92
67	45
39	71
58	35
35	56
52	29
29	41
41	20
20	24
24	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	401
285	637
427	178
178	283
283	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	12ga
(.1050")	#12
#12	36/8
36/4	401
285	637
427	178
178	283
283	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	14ga
(.0700")	#12
#12	36/8
36/4	386
193	578
289	178
129	283
193	114
103	181
154	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	16ga
(.0590")	#12
#12	36/8
36/4	325
162	487
244	178
108	283
162	114
87	181
130	79
72	126
108	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
	18ga
(.0459")	#12
#12	36/8
36/4	253
126	379
190	169
84	253
126	114
67	181
101	79
56	126
84	58
48	92
72	45
42	71
63	35
35	56
56	29
29	41
41	20
20	24
24	
	20ga
(.0354")	#12
#12	36/8
36/4	195
97	292
146	130
65	195
97	104
52	156
78	79
43	126
65	58
37	92
56	45
32	71
49	35
29	56
43	29
26	41
39	20
20	24
24	
	22ga
(.0294")	#12
#12	36/8
36/4	162
81	243
121	108
54	162
81	86
43	130
65	72
36	108
54	58
31	92
46	45
27	71
40	35
24	56
36	29
22	41
32	20
18	24
24	

Plywood & OSB	15/32"	#14
#14	36/8
36/4	209
105	283
141	140
70	189
94	112
56	151
75	79
47	126
63	58
40	92
54	45
35	71
47	35
31	56
42	29
28	41
38	20
20	24
24	
	19/32"	#14
#14	36/8
36/4	265
133	358
179	177
88	239
119	114
71	181
96	79
59	126
80	58
51	92
68	45
44	71
60	35
35	56
53	29
29	41
41	20
20	24
24	
	23/32"	#14
#14	36/8
36/4	321
161	434
217	178
107	283
145	114
86	181
116	79
71	126
96	58
58	92
83	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	

Lumber (DFL)	
1" min	#9
#9	36/8
36/4	388
194	523
262	178
129	283
174	114
103	181
140	79
79	126
116	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	
		#14
#14	36/8
36/4	401
265	637
358	178
177	283
238	114
114	181
181	79
79	126
126	58
58	92
92	45
45	71
71	35
35	56
56	29
29	41
41	20
20	24
24	

Delta Rib III, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	551
355	874
532	245
236	388
355	157
157	249
249	109
109	173
173	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	
	12ga
(.1050")	#12
#12	36/8
36/4	551
355	874
532	245
236	388
355	157
157	249
249	109
109	173
173	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	
	14ga
(.0700")	#12
#12	36/8
36/4	551
278	835
418	245
186	388
278	157
149	249
223	109
109	173
173	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	
	16ga
(.0590")	#12
#12	36/8
36/4	469
235	704
352	245
156	388
235	157
125	249
188	109
104	173
156	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	
	18ga
(.0459")	#12
#12	36/8
36/4	365
183	548
274	243
122	365
183	157
97	249
146	109
81	173
122	80
70	127
104	61
61	97
91	48
48	73
73	39
39	53
53	27
27	31
31	
	20ga
(.0354")	#12
#12	36/8
36/4	282
141	422
211	188
94	282
141	150
75	225
113	109
63	173
94	80
54	127
80	61
47	97
70	48
42	73
63	39
38	53
53	27
27	31
31	
	22ga
(.0294")	#12
#12	36/8
36/4	234
117	351
175	156
78	234
117	125
62	187
94	104
52	156
78	80
45	127
67	61
39	97
58	48
35	73
52	39
31	53
47	27
26	31
31	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	551
355	874
532	245
236	388
355	157
157	249
249	109
109	173
173	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	
	12ga
(.1050")	#12
#12	36/8
36/4	551
289	868
434	245
193	388
289	157
154	249
231	109
109	173
173	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	
	14ga
(.0700")	#12
#12	36/8
36/4	386
193	578
289	245
129	386
193	157
103	249
154	109
86	173
129	80
73	127
110	61
61	97
96	48
48	73
73	39
39	53
53	27
27	31
31	
	16ga
(.0590")	#12
#12	36/8
36/4	325
162	487
244	217
108	325
162	157
87	249
130	109
72	173
108	80
62	127
93	61
54	97
81	48
48	73
72	39
39	53
53	27
27	31
31	
	18ga
(.0459")	#12
#12	36/8
36/4	253
126	379
190	169
84	253
126	135
67	202
101	109
56	169
84	80
48	127
72	61
42	97
63	48
37	73
56	39
34	53
51	27
27	31
31	
	20ga
(.0354")	#12
#12	36/8
36/4	195
97	292
146	130
65	195
97	104
52	156
78	87
43	130
65	74
37	111
56	61
32	97
49	48
29	73
43	39
26	53
39	27
22	31
31	
	22ga
(.0294")	#12
#12	36/8
36/4	162
81	243
121	108
54	162
81	86
43	130
65	72
36	108
54	62
31	93
46	54
27	81
40	48
24	72
36	39
22	53
32	27
18	31
27	

Plywood & OSB	15/32"	#14
#14	36/8
36/4	209
105	283
141	140
70	189
94	112
56	151
75	93
47	126
63	80
40	108
54	61
35	94
47	48
31	73
42	39
28	53
38	27
23	31
31	
	19/32"	#14
#14	36/8
36/4	265
133	358
179	177
88	239
119	142
71	191
96	109
59	159
80	80
51	127
68	61
44	97
60	48
39	73
53	39
35	53
48	27
27	31
31	
	23/32"	#14
#14	36/8
36/4	321
161	434
217	214
107	289
145	157
86	231
116	109
71	173
96	80
61	127
83	61
54	97
72	48
48	73
64	39
39	53
53	27
27	31
31	

Lumber (DFL)	
1" min	#9
#9	36/8
36/4	388
194	523
262	245
129	349
174	157
103	249
140	109
86	173
116	80
74	127
100	61
61	97
87	48
48	73
73	39
39	53
53	27
27	31
31	
		#14
#14	36/8
36/4	530
265	715
358	245
177	388
238	157
141	249
191	109
109	173
159	80
80	127
127	61
61	97
97	48
48	73
73	39
39	53
53	27
27	31
31	

Table 5.6 – Shear and Flexibility (No. 29 gauge Delta Rib III, 36/4):
29ga  Delta Rib III   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	355	572	352	567	354	569	350	564	351	566	349	561	294	470	238	381	165	264	
		15.2	13.2	12.3	12.0	11.5	11.3	11.0	11.0	10.7	
8"	q
F	326	525	315	507	315	507	315	506	314	506	301	484	294	470	238	381	165	264	
		16.3	14.6	13.9	13.4	13.0	13.3	13.0	12.8	12.9	
12"	q
F	326	525	284	458	291	469	269	433	277	446	260	418	268	431	238	381	165	264	
		16.3	15.6	14.7	15.0	14.4	14.8	14.3	14.8	14.7	
24"	q
F	286	460	231	372	255	411	229	369	207	333	188	303	212	341	196	316	165	264	
		17.4	17.3	15.9	16.5	17.2	18.0	16.7	17.4	19.0	
36"	q
F	286	460	231	372	199	320	173	279	207	333	188	303	172	276	158	254	135	217	
		17.4	17.3	18.0	19.0	17.2	18.0	18.9	19.9	21.9	
48"	q
F	286	460	231	372	199	320	173	279	153	246	136	220	172	276	158	254	135	217	
		17.4	17.3	18.0	19.0	20.2	21.4	18.9	19.9	21.9	
1
per span	q
F	286	460	231	372	199	320	173	279	153	246	136	220	123	198	112	180	93	149	
		17.4	17.3	18.0	19.0	20.2	21.4	22.8	24.1	27.0	
none	q
F	195	313	141	226	115	186	96	155	82	131	71	114	62	100	56	90	46	73	
		19.9	21.0	22.6	24.6	26.6	28.8	31.1	33.4	38.1	

Table 5.7 – Shear and Flexibility (No. 26 gauge Delta Rib III, 36/4):
26ga  Delta Rib III   36/4 Attachment Pattern	Support Screw: #12 HWH  Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	442	712	439	706	440	708	436	701	437	704	434	699	406	650	329	526	228	365	
		10.9	9.9	9.3	9.2	8.9	8.8	8.7	8.7	8.5	
8"	q
F	406	653	392	631	392	631	391	630	391	630	374	603	376	606	329	526	228	365	
		11.9	11.1	10.7	10.5	10.3	10.6	10.4	10.3	10.5	
12"	q
F	406	653	354	570	363	584	334	538	345	555	323	520	333	537	316	508	228	365	
		11.9	12.0	11.4	11.9	11.5	12.0	11.6	12.1	12.1	
24"	q
F	356	573	288	463	318	511	286	460	258	415	234	377	263	424	244	393	213	342	
		12.9	13.5	12.5	13.2	14.0	14.8	13.8	14.5	15.9	
36"	q
F	356	573	288	463	248	399	216	347	258	415	234	377	214	344	196	316	168	271	
		12.9	13.5	14.4	15.5	14.0	14.8	15.7	16.7	18.5	
48"	q
F	356	573	288	463	248	399	216	347	190	306	170	273	214	344	196	316	168	271	
		12.9	13.5	14.4	15.5	16.7	17.9	15.7	16.7	18.5	
1
per span	q
F	356	573	288	463	248	399	216	347	190	306	170	273	153	246	139	224	116	187	
		12.9	13.5	14.4	15.5	16.7	17.9	19.2	20.5	23.1	
none	q
F	242	390	175	282	144	231	120	193	102	165	89	143	78	126	70	112	57	92	
		15.1	16.8	18.6	20.5	22.5	24.5	26.6	28.7	33.0	
Note: Shear Tables 5.6 & 5.7 based on 36/4 attachment pattern.  Values acceptable for use (conservative) for 36/8 attachment pattern.

6.0 HR-36®

Figure 6.1 - Basic Dimensions and Panel Attachment (HR-36):

36/3 Pattern:	
	
36/5 Pattern:	

Table 6.1 - Section Properties (HR-36):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to    Positive
N.A. from		Section Bottom	Modulus	Negative Section
Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.89	0.0173	80	82	0.2618	0.0987	0.81	0.1382	0.1224	
24	1.19	0.0232	50	65	0.3510	0.1333	0.81	0.1846	0.1636	
22	1.51	0.0294	50	65	0.4448	0.1667	0.81	0.2329	0.2066	
20	1.82	0.0354	40	55	0.5356	0.2000	0.81	0.2793	0.2477	
18	2.36	0.0459	40	55	0.6942	0.2600	0.82	0.3593	0.3190	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0983	0.0840	0.63	0.0762	0.0817	1.01	0.0623	0.0889	0.0873	
24	0.1782	0.1233	0.71	0.1272	0.1133	0.91	0.1132	0.1267	0.1200	
22	0.2702	0.1567	0.72	0.1759	0.1567	0.90	0.1559	0.1600	0.1600	
20	0.4012	0.2000	0.77	0.2371	0.2000	0.86	0.2095	0.2000	0.2000	
18	0.6179	0.2600	0.80	0.3160	0.2600	0.84	0.2987	0.2600	0.2600	

Table 6.2 - Inward (Positive) Uniform Allowable Loads (HR-36):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	12' -	0"	
		ASD, W/Ω	456	203	114	73	51	37	29	18	13	
	Single Span	LRFD, φW	724	322	181	116	80	59	45	29	20	
		L/240
L/180	-
-	-
-	91
-	47
62	27
36	17
23	11
15	6
8	3
4	
		L/120	-	-	-	-	-	34	23	12	7	
		ASD, W/Ω	301	149	87	57	40	29	22	14	10	

26	Double Span	LRFD, φW	455	224	132	86	60	44	34	21	15	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	14
-	8
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	351	178	107	70	49	36	28	18	12	
	Triple Span	LRFD, φW	530	269	161	106	74	55	42	27	19	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	32
-	21
-	11
15	6
8	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	635	282	159	102	71	52	40	25	18	
	Single Span	LRFD, φW	1007	448	252	161	112	82	63	40	28	
		L/240
L/180	-
-	-
-	130
-	66
89	38
51	24
32	16
22	8
11	5
6	
		L/120	-	-	-	-	-	48	32	17	10	
		ASD, W/Ω	505	237	136	88	61	45	35	22	16	

24	Double Span	LRFD, φW	760	358	205	132	92	68	52	33	23	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	20
-	12
15	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	605	290	168	109	76	56	44	27	19	
	Triple Span	LRFD, φW	911	437	254	165	115	85	66	41	29	
		L/240
L/180	-
-	-
-	-
-	-
-	73
-	46
-	31
41	16
21	9
12	
		L/120	-	-	-	-	-	-	-	-	18	
		ASD, W/Ω	878	390	219	140	98	72	55	35	24	
	Single Span	LRFD, φW	1393	619	348	223	155	114	87	56	39	
		L/240
L/180	-
-	388
-	164
219	84
112	49
65	31
41	20
27	10
14	6
8	
		L/120	-	-	-	-	97	61	41	21	12	
		ASD, W/Ω	715	332	189	122	85	63	48	30	21	

22	Double Span	LRFD, φW	1077	500	285	183	129	95	72	46	32	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	25
-	15
19	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	866	409	235	152	106	78	60	39	27	
	Triple Span	LRFD, φW	1305	615	354	229	160	118	90	58	40	
		L/240
L/180	-
-	-
-	-
-	-
-	92
-	58
77	39
52	20
26	11
15	
		L/120	-	-	-	-	-	-	-	-	23	

Table 6.2 (Cont’d) - Inward (Positive) Uniform Allowable Loads (HR-36):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	12' -	0"	
		ASD, W/Ω	947	421	237	151	105	77	59	38	26	
	Single Span	LRFD, φW	1502	667	375	240	167	123	94	60	42	
		L/240
L/180	-
-	-
-	205
-	105
140	61
81	38
51	26
34	13
17	8
10	
		L/120	-	-	-	-	-	76	51	26	15	
		ASD, W/Ω	778	360	205	131	92	68	51	33	23	

20	Double Span	LRFD, φW	1172	541	308	198	138	102	78	49	34	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	32
-	18
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	946	443	254	164	114	84	64	41	29	
	Triple Span	LRFD, φW	1426	667	382	247	172	127	97	62	43	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	72
-	48
-	25
33	14
19	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1261	561	315	202	140	103	79	50	35	
	Single Span	LRFD, φW	2001	889	500	320	222	163	125	80	56	
		L/240
L/180	-
-	-
-	266
-	136
182	79
105	50
66	33
44	17
23	10
13	
		L/120	-	-	-	-	-	99	67	34	20	
		ASD, W/Ω	1094	508	291	187	130	96	73	47	32	

18	Double Span	LRFD, φW	1647	765	438	282	196	145	111	71	49	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	41
-	24
32	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1322	625	360	233	163	120	92	59	40	
	Triple Span	LRFD, φW	1992	941	542	351	245	181	139	89	61	
		L/240
L/180	-
-	-
-	-
-	-
-	149
-	94
-	63
84	32
43	19
25	
		L/120	-	-	-	-	-	-	-	-	37	

Table 6.3 - Allowable Reactions at Supports (HR-36):

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	188
310	215
349	239
382	278
438	287
461	330
520	365
569	425
651	
24	End
Interior	274
453	312
507	344
552	398
628	419
674	477
754	527
821	609
934	
22	End
Interior	428
711	485
791	533
858	614
970	655
1058	742
1176	815
1276	939
1443	
20	End
Interior	485
809	547
895	599
968	687
1090	742
1203	837
1331	917
1440	1052
1621	
18	End
Interior	788
1322	883
1454	964
1565	1098
1751	1205
1967	1351
2163	1474
2327	1681
2604	

HR-36, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	296
177	443
266	236
142	355
213	197
118	296
177	148
89	222
133	118
71	177
106	85
59	134
89	62
51	99
76	48
44	75
66	30
30	43
43	
	12ga
(.1050")	#12
#12	36/5
36/3	296
177	443
266	236
142	355
213	197
118	296
177	148
89	222
133	118
71	177
106	85
59	134
89	62
51	99
76	48
44	75
66	30
30	43
43	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	62
40	99
60	48
35	75
52	30
28	43
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	48
29	73
44	30
23	43
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	43
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	296
177	443
266	236
142	355
213	197
118	296
177	148
89	222
133	118
71	177
106	85
59	134
89	62
51	99
76	48
44	75
66	30
30	43
43	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	62
41	99
62	48
36	75
54	30
29	43
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	30
19	43
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	30
19	43
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	62
38	85
51	48
33	75
45	30
26	43
36	

HR-36, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	314
189	471
283	251
151	377
226	209
126	314
189	157
94	236
141	126
75	189
113	88
63	140
94	65
54	103
81	50
47	79
71	32
32	50
50	
	12ga
(.1050")	#12
#12	36/5
36/3	314
189	471
283	251
151	377
226	209
126	314
189	157
94	236
141	126
75	189
113	88
63	140
94	65
54	103
81	50
47	79
71	32
32	50
50	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	65
40	99
60	50
35	79
52	32
28	50
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	32
23	50
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	88
62	140
93	65
53	103
80	50
46	79
70	32
32	50
50	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	65
41	103
62	50
36	79
54	32
29	50
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	50
33	75
45	32
26	50
36	

HR-36, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	398
239	597
358	319
191	478
287	265
159	398
239	199
119	299
179	159
96	239
143	122
80	193
119	90
68	142
102	69
60	109
90	44
44	70
70	
	12ga
(.1050")	#12
#12	36/5
36/3	348
209	522
313	278
167	418
251	232
139	348
209	174
104	261
157	139
84	209
125	116
70	174
104	90
60	142
90	69
52	109
78	44
42	70
63	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	66
40	99
60	58
35	87
52	44
28	70
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	39
23	59
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	103
62	155
93	89
53	133
80	69
46	109
70	44
37	70
56	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	69
41	103
62	60
36	90
54	44
29	70
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	55
33	75
45	44
26	60
36	

Table 6.7 - Outward (Negative) Uniform Allowable Loads (No. 20 gauge HR-36):
HR-36, 20ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	406
243	608
365	325
195	487
292	270
162	406
243	203
122	304
183	162
97	243
146	131
81	203
122	97
70	153
104	74
61	117
91	47
47	75
73	
	12ga
(.1050")	#12
#12	36/5
36/3	348
209	522
313	278
167	418
251	232
139	348
209	174
104	261
157	139
84	209
125	116
70	174
104	97
60	149
90	74
52	117
78	47
42	75
63	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	66
40	99
60	58
35	87
52	46
28	70
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	39
23	59
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	103
62	155
93	89
53	133
80	74
46	116
70	47
37	75
56	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	69
41	103
62	60
36	90
54	47
29	72
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	55
33	75
45	44
26	60
36	

Table 6.8 - Outward (Negative) Uniform Allowable Loads (No. 18 gauge HR-36):
HR-36, 18ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	448
269	671
403	358
215	537
322	298
179	448
269	224
134	336
201	179
107	269
161	149
90	224
134	128
77	192
115	99
67	156
101	63
54	100
81	
	12ga
(.1050")	#12
#12	36/5
36/3	348
209	522
313	278
167	418
251	232
139	348
209	174
104	261
157	139
84	209
125	116
70	174
104	99
60	149
90	87
52	131
78	63
42	100
63	
	14ga
(.0700")	#12
#12	36/5
36/3	232
139	348
209	186
111	278
167	155
93	232
139	116
70	174
104	93
56	139
84	77
46	116
70	66
40	99
60	58
35	87
52	46
28	70
42	
	16ga
(.0590")	#12
#12	36/5
36/3	196
117	293
176	156
94	235
141	130
78	196
117	98
59	147
88	78
47	117
70	65
39	98
59	56
34	84
50	49
29	73
44	39
23	59
35	
	18ga
(.0459")	#12
#12	36/5
36/3	152
91	228
137	122
73	183
110	101
61	152
91	76
46	114
68	61
37	91
55	51
30	76
46	43
26	65
39	38
23	57
34	30
18	46
27	
	20ga
(.0354")	#12
#12	36/5
36/3	117
70	176
106	94
56	141
84	78
47	117
70	59
35	88
53	47
28	70
42	39
23	59
35	34
20	50
30	29
18	44
26	23
14	35
21	
	22ga
(.0294")	#12
#12	36/5
36/3	97
58	146
88	78
47	117
70	65
39	97
58	49
29	73
44	39
23	58
35	32
19	49
29	28
17	42
25	24
15	37
22	19
12	29
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/5
36/3	310
186	465
279	248
149	372
223	207
124	310
186	155
93	232
139	124
74	186
112	103
62	155
93	89
53	133
80	77
46	116
70	62
37	93
56	
	12ga
(.1050")	#12
#12	36/5
36/3	241
145	361
217	193
116	289
174	161
96	241
145	120
72	181
108	96
58	145
87	80
48	120
72	69
41	103
62	60
36	90
54	48
29	72
43	
	14ga
(.0700")	#12
#12	36/5
36/3	161
96	241
145	129
77	193
116	107
64	161
96	80
48	120
72	64
39	96
58	54
32	80
48	46
28	69
41	40
24	60
36	32
19	48
29	
	16ga
(.0590")	#12
#12	36/5
36/3	135
81	203
122	108
65	162
97	90
54	135
81	68
41	102
61	54
32	81
49	45
27	68
41	39
23	58
35	34
20	51
30	27
16	41
24	
	18ga
(.0459")	#12
#12	36/5
36/3	105
63	158
95	84
51	126
76	70
42	105
63	53
32	79
47	42
25	63
38	35
21	53
32	30
18	45
27	26
16	40
24	21
13	32
19	
	20ga
(.0354")	#12
#12	36/5
36/3	81
49	122
73	65
39	97
58	54
32	81
49	41
24	61
37	32
19	49
29	27
16	41
24	23
14	35
21	20
12	30
18	16
10	24
15	
	22ga
(.0294")	#12
#12	36/5
36/3	67
40	101
61	54
32	81
49	45
27	67
40	34
20	51
30	27
16	40
24	22
13	34
20	19
12	29
17	17
10	25
15	13
8	20
12	

Plywood & OSB	15/32"	#14
#14	36/5
36/3	87
52	118
71	70
42	94
57	58
35	79
47	44
26	59
35	35
21	47
28	29
17	39
24	25
15	34
20	22
13	29
18	17
10	24
14	
	19/32"	#14
#14	36/5
36/3	111
66	149
90	88
53	119
72	74
44	100
60	55
33	75
45	44
27	60
36	37
22	50
30	32
19	43
26	28
17	37
22	22
13	30
18	
	23/32"	#14
#14	36/5
36/3	134
80	181
108	107
64	145
87	89
54	120
72	67
40	90
54	54
32	72
43	45
27	60
36	38
23	52
31	33
20	45
27	27
16	36
22	

Lumber (DFL)	
1" min	#9
#9	36/5
36/3	161
97	218
131	129
78	174
105	108
65	145
87	81
48	109
65	65
39	87
52	54
32	73
44	46
28	62
37	40
24	55
33	32
19	44
26	
		#14
#14	36/5
36/3	221
132	298
179	177
106	238
143	147
88	199
119	110
66	149
89	88
53	119
72	74
44	99
60	63
38	85
51	55
33	75
45	44
26	60
36	

Table 6.9 - Shear and Flexibility (No. 26 gauge HR-36, 36/3):
26ga   HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	337	543	338	545	336	541	336	540	335	540	335	539	335	539	335	539	318	510	
		285.4	229.9	193.1	146.9	119.2	100.8	87.6	77.7	63.9	
8"	q
F	312	502	313	503	313	504	304	489	306	493	300	483	303	487	298	481	297	479	
		286.9	231.5	194.5	148.8	121.0	102.9	89.6	79.9	66.1	
12"	q
F	288	463	295	475	277	447	271	437	267	430	265	426	262	423	261	420	259	416	
		288.0	232.3	196.2	150.4	123.0	104.7	91.7	81.9	68.2	
24"	q
F	239	385	264	426	242	390	204	329	215	345	190	306	200	322	182	294	178	286	
		290.1	233.7	197.9	154.0	125.9	109.2	95.4	86.9	73.6	
36"	q
F	239	385	209	337	185	297	204	329	174	281	151	243	170	273	153	246	153	247	
		290.1	236.3	201.1	154.0	128.7	112.5	97.8	89.7	76.0	
48"	q
F	239	385	209	337	185	297	148	238	174	281	151	243	133	214	117	188	126	204	
		290.1	236.3	201.1	158.3	128.7	112.5	101.7	94.1	79.4	
1
per span	q
F	239	385	209	337	185	297	148	238	119	192	97	157	83	134	73	117	58	94	
		290.1	236.3	201.1	158.3	133.9	118.9	109.1	102.6	95.5	
none	q
F	138	222	109	175	89	143	64	103	49	79	39	63	33	53	29	46	23	37	
		295.6	243.3	209.4	169.3	147.8	135.5	128.4	124.7	123.2	
Table 6.10 - Shear and Flexibility (No. 26 gauge HR-36, 36/5):
26ga   HR-36   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	530	853	532	857	525	845	522	840	520	837	519	835	518	834	498	796	318	510	
		19.5	17.2	15.8	14.0	12.9	12.1	11.6	11.2	10.7	
8"	q
F	453	730	453	729	452	728	426	686	431	695	416	669	421	678	410	660	318	510	
		20.7	18.5	17.0	15.6	14.5	14.0	13.4	13.3	12.8	
12"	q
F	397	639	409	659	370	595	355	571	345	555	338	544	333	536	329	530	318	510	
		21.5	19.2	18.4	17.0	16.2	15.6	15.3	15.0	14.7	
24"	q
F	309	497	347	559	306	493	245	394	257	414	221	355	233	376	208	335	200	323	
		22.9	20.2	19.6	19.7	18.4	19.2	18.4	19.3	19.4	
36"	q
F	309	497	260	419	224	360	245	394	202	326	169	271	193	310	170	274	170	274	
		22.9	21.9	21.7	19.7	20.5	21.7	20.3	21.4	21.3	
48"	q
F	309	497	260	419	224	360	170	274	202	326	169	271	144	232	126	203	136	219	
		22.9	21.9	21.7	22.4	20.5	21.7	23.1	24.7	24.0	
1
per span	q
F	309	497	260	419	224	360	170	274	134	216	110	177	94	151	82	132	66	106	
		22.9	21.9	21.7	22.4	24.0	25.9	28.0	30.2	35.0	
none	q
F	176	284	139	224	114	183	83	133	64	103	51	83	44	70	38	61	30	49	
		25.8	25.5	26.1	28.2	31.2	34.5	38.1	41.8	49.5	

Table 6.11 - Shear and Flexibility (No. 24 gauge HR-36, 36/3):
24ga   HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	359	578	360	579	357	576	357	574	356	574	356	573	356	573	356	573	355	572	
		139.4	112.8	95.1	73.0	59.7	50.9	44.6	39.8	33.2	
8"	q
F	332	534	332	535	333	535	323	520	325	524	319	514	322	518	317	511	316	509	
		140.7	114.1	96.4	74.7	61.3	52.7	46.3	41.7	35.1	
12"	q
F	306	493	314	505	295	475	288	464	284	457	281	453	279	449	277	446	275	442	
		141.7	114.9	97.9	76.0	63.0	54.3	48.1	43.4	36.9	
24"	q
F	254	409	281	453	258	415	217	349	228	367	202	325	213	343	194	312	189	304	
		143.5	116.1	99.3	79.2	65.5	58.1	51.3	47.8	41.6	
36"	q
F	254	409	223	358	196	316	217	349	185	298	160	258	180	290	162	261	163	263	
		143.5	118.3	102.1	79.2	67.9	61.0	53.4	50.2	43.6	
48"	q
F	254	409	223	358	196	316	157	253	185	298	160	258	141	227	124	200	134	216	
		143.5	118.3	102.1	82.8	67.9	61.0	56.7	54.0	46.6	
1
per span	q
F	254	409	223	358	196	316	157	253	128	207	105	169	89	143	77	124	62	99	
		143.5	118.3	102.1	82.8	72.4	66.5	63.1	61.3	60.5	
none	q
F	147	236	117	189	96	155	70	112	54	86	43	69	35	57	31	49	24	39	
		148.3	124.3	109.2	92.4	84.4	80.8	79.8	80.4	84.4	

Table 6.12 - Shear and Flexibility (No. 24 gauge HR-36, 36/5):
24ga   HR-36   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	563	907	566	911	558	898	555	893	553	890	552	888	551	886	550	885	497	796	
		11.7	10.6	10.0	9.1	8.6	8.3	8.1	7.9	7.6	
8"	q
F	482	776	481	775	481	774	453	729	459	738	442	711	448	721	436	702	432	696	
		12.7	11.7	11.0	10.6	10.0	9.9	9.6	9.6	9.5	
12"	q
F	422	679	435	700	393	633	377	607	367	590	359	579	354	570	350	564	345	555	
		13.4	12.3	12.2	11.7	11.5	11.3	11.2	11.2	11.1	
24"	q
F	328	528	369	594	326	524	260	419	273	440	235	378	248	399	221	356	213	343	
		14.6	13.2	13.3	14.1	13.4	14.4	13.9	14.8	15.2	
36"	q
F	328	528	277	446	238	383	260	419	215	346	181	291	205	330	181	291	181	292	
		14.6	14.7	15.1	14.1	15.2	16.5	15.5	16.7	16.8	
48"	q
F	328	528	277	446	238	383	183	294	215	346	181	291	153	247	134	216	144	233	
		14.6	14.7	15.1	16.5	15.2	16.5	18.0	19.5	19.1	
1
per span	q
F	328	528	277	446	238	383	183	294	144	232	118	191	100	161	87	140	70	112	
		14.6	14.7	15.1	16.5	18.2	20.1	22.2	24.3	28.6	
none	q
F	189	304	149	240	123	197	89	144	70	112	56	91	47	75	40	65	32	52	
		17.1	17.8	18.8	21.5	24.5	27.6	30.9	34.3	41.1	

Table 6.13 - Shear and Flexibility (No. 22 gauge HR-36, 36/3):
22ga   HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	369	595	370	596	368	593	367	591	367	591	367	590	366	590	366	590	366	589	
		78.8	64.0	54.3	42.1	34.8	29.9	26.4	23.8	20.1	
8"	q
F	341	550	342	551	342	551	332	535	335	539	329	529	331	533	327	526	325	524	
		79.9	65.2	55.4	43.6	36.1	31.5	27.9	25.5	21.8	
12"	q
F	315	507	323	520	304	489	297	478	293	471	289	466	287	462	285	460	283	456	
		80.8	65.9	56.8	44.8	37.7	32.9	29.5	27.0	23.4	
24"	q
F	261	421	289	466	265	427	223	360	235	378	208	335	219	353	200	321	194	313	
		82.4	67.0	58.0	47.6	39.9	36.3	32.4	30.8	27.6	
36"	q
F	261	421	229	369	202	326	223	360	191	307	165	266	186	299	167	269	168	270	
		82.4	69.0	60.5	47.6	42.0	38.9	34.2	33.0	29.4	
48"	q
F	261	421	229	369	202	326	162	260	191	307	165	266	145	234	128	206	138	223	
		82.4	69.0	60.5	50.8	42.0	38.9	37.2	36.4	32.0	
1
per span	q
F	261	421	229	369	202	326	162	260	133	215	109	176	93	149	80	128	64	102	
		82.4	69.0	60.5	50.8	46.0	43.7	42.9	42.8	44.4	
none	q
F	151	243	122	196	100	161	73	117	56	91	45	73	38	60	32	51	25	40	
		86.6	74.3	66.8	59.3	56.7	56.5	57.7	59.8	65.6	

Table 6.14 - Shear and Flexibility (No. 22 gauge HR-36, 36/5):
22ga   HR-36   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	580	934	583	938	574	925	571	920	569	916	568	914	567	913	566	911	565	910	
		8.1	7.5	7.2	6.7	6.5	6.3	6.2	6.1	6.0	
8"	q
F	496	798	495	797	495	797	466	751	472	760	455	732	461	742	449	723	445	716	
		9.0	8.5	8.1	8.0	7.7	7.8	7.6	7.6	7.6	
12"	q
F	434	699	448	721	405	651	388	625	377	608	370	596	365	587	361	580	355	571	
		9.6	9.0	9.2	9.0	9.0	9.0	9.0	9.0	9.0	
24"	q
F	338	544	380	612	335	540	268	431	281	453	242	389	255	411	228	367	219	353	
		10.7	9.8	10.1	11.1	10.8	11.8	11.4	12.3	12.6	
36"	q
F	338	544	285	459	245	394	268	431	221	357	187	302	211	340	186	300	186	300	
		10.7	11.1	11.7	11.1	12.3	13.6	12.8	13.9	14.1	
48"	q
F	338	544	285	459	245	394	189	305	221	357	187	302	159	256	138	222	149	239	
		10.7	11.1	11.7	13.2	12.3	13.6	15.0	16.4	16.2	
1
per span	q
F	338	544	285	459	245	394	189	305	150	241	123	198	104	168	90	145	72	116	
		10.7	11.1	11.7	13.2	15.0	16.8	18.7	20.7	24.6	
none	q
F	195	315	155	249	127	205	93	150	73	117	59	95	49	79	42	68	33	54	
		12.9	13.9	15.0	17.7	20.5	23.5	26.5	29.6	35.7	

Table 6.15 - Shear and Flexibility (No. 20 gauge HR-36, 36/3):
20ga   HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	369	595	370	596	368	593	367	591	367	591	367	590	366	590	366	590	366	589	
		50.7	41.4	35.3	27.7	23.1	20.0	17.8	16.2	13.9	
8"	q
F	341	550	342	551	342	551	332	535	335	539	329	529	331	533	327	526	325	524	
		51.7	42.5	36.3	29.0	24.3	21.5	19.2	17.7	15.4	
12"	q
F	315	507	323	520	304	489	297	478	293	471	289	466	287	462	285	460	283	456	
		52.5	43.1	37.6	30.1	25.7	22.8	20.7	19.1	16.9	
24"	q
F	261	421	289	466	265	427	223	360	235	378	208	335	219	353	200	321	194	313	
		54.0	44.1	38.7	32.6	27.7	25.9	23.3	22.6	20.7	
36"	q
F	261	421	229	369	202	326	223	360	191	307	165	266	186	299	167	269	168	270	
		54.0	45.9	40.9	32.6	29.7	28.2	24.9	24.5	22.3	
48"	q
F	261	421	229	369	202	326	162	260	191	307	165	266	145	234	129	207	138	223	
		54.0	45.9	40.9	35.6	29.7	28.2	27.7	27.7	24.7	
1
per span	q
F	261	421	229	369	202	326	162	260	134	215	110	178	93	150	81	130	64	102	
		54.0	45.9	40.9	35.6	33.3	32.6	32.8	33.6	36.0	
none	q
F	151	243	123	198	101	162	74	118	57	92	46	74	38	62	33	52	25	40	
		57.9	50.8	46.7	43.3	43.0	44.3	46.4	49.0	55.4	

Table 6.16 - Shear and Flexibility (No. 20 gauge HR-36, 36/5):
20ga   HR-36   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	580	934	583	938	574	925	571	920	569	916	568	914	567	913	566	911	565	910	
		6.2	5.8	5.7	5.4	5.3	5.2	5.1	5.0	5.0	
8"	q
F	496	798	495	797	495	797	466	751	472	760	455	732	461	742	449	723	445	716	
		7.0	6.7	6.5	6.6	6.4	6.5	6.4	6.5	6.5	
12"	q
F	434	699	448	721	405	651	388	625	377	608	370	596	365	587	361	580	355	571	
		7.6	7.2	7.5	7.5	7.6	7.6	7.7	7.7	7.8	
24"	q
F	338	544	380	612	335	540	268	431	281	453	242	389	255	411	228	367	219	353	
		8.6	7.9	8.4	9.4	9.2	10.1	9.8	10.7	11.1	
36"	q
F	338	544	285	459	245	394	268	431	221	357	188	303	211	340	187	301	186	300	
		8.6	9.1	9.8	9.4	10.6	11.9	11.1	12.2	12.4	
48"	q
F	338	544	285	459	245	394	190	306	221	357	188	303	160	258	139	224	149	239	
		8.6	9.1	9.8	11.4	10.6	11.9	13.1	14.5	14.3	
1
per span	q
F	338	544	285	459	245	394	190	306	150	242	124	200	105	169	91	146	72	116	
		8.6	9.1	9.8	11.4	13.0	14.8	16.5	18.3	22.0	
none	q
F	195	315	156	251	128	207	94	151	74	118	60	96	50	81	43	69	33	54	
		10.6	11.7	12.8	15.4	18.1	20.8	23.6	26.4	32.1	

Table 6.17 - Shear and Flexibility (No. 18 gauge HR-36, 36/3):
18ga   HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	369	595	370	596	368	593	367	591	367	591	367	590	366	590	366	590	366	589	
		27.7	22.9	19.7	15.8	13.4	11.8	10.6	9.8	8.6	
8"	q
F	341	550	342	551	342	551	332	535	335	539	329	529	331	533	327	526	325	524	
		28.6	23.8	20.6	16.9	14.5	13.0	11.8	11.1	10.0	
12"	q
F	315	507	323	520	304	489	297	478	293	471	289	466	287	462	285	460	283	456	
		29.3	24.4	21.7	17.9	15.7	14.2	13.1	12.3	11.2	
24"	q
F	261	421	289	466	265	427	223	360	235	378	208	335	219	353	200	321	194	313	
		30.6	25.2	22.7	20.1	17.4	16.9	15.4	15.4	14.6	
36"	q
F	261	421	229	369	202	326	223	360	191	307	165	266	186	299	167	269	168	270	
		30.6	26.8	24.6	20.1	19.1	19.0	16.9	17.1	16.0	
48"	q
F	261	421	229	369	202	326	162	260	191	307	165	266	145	234	129	208	138	223	
		30.6	26.8	24.6	22.7	19.1	19.0	19.3	19.9	18.1	
1
per span	q
F	261	421	229	369	202	326	162	260	134	215	111	179	94	152	82	131	64	103	
		30.6	26.8	24.6	22.7	22.4	22.9	23.8	25.0	28.0	
none	q
F	151	243	124	199	102	164	75	120	58	94	47	76	39	63	34	54	25	41	
		34.0	31.1	29.7	29.5	30.9	33.1	35.7	38.6	45.0	

Table 6.18 - Shear and Flexibility (No. 18 gauge HR-36, 36/5):
18ga   HR-36   36/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	580	934	583	938	574	925	571	920	569	916	568	914	567	913	566	911	565	910	
		4.4	4.2	4.2	4.1	4.0	4.0	4.0	3.9	3.9	
8"	q
F	496	798	495	797	495	797	466	751	472	760	455	732	461	742	449	723	445	716	
		5.2	5.1	5.0	5.1	5.0	5.2	5.1	5.2	5.2	
12"	q
F	434	699	448	721	405	651	388	625	377	608	370	596	365	587	361	580	355	571	
		5.7	5.5	5.8	5.9	6.1	6.2	6.2	6.3	6.4	
24"	q
F	338	544	380	612	335	540	268	431	281	453	242	389	255	411	228	367	219	353	
		6.5	6.1	6.6	7.6	7.5	8.4	8.1	8.9	9.3	
36"	q
F	338	544	285	459	245	394	268	431	221	357	188	303	211	340	187	301	186	300	
		6.5	7.2	7.8	7.6	8.7	9.9	9.3	10.2	10.4	
48"	q
F	338	544	285	459	245	394	190	306	221	357	188	303	161	259	140	225	149	240	
		6.5	7.2	7.8	9.3	8.7	9.9	11.0	12.2	12.1	
1
per span	q
F	338	544	285	459	245	394	190	306	152	244	125	201	106	171	92	148	72	116	
		6.5	7.2	7.8	9.3	10.9	12.4	14.0	15.6	18.9	
none	q
F	195	315	157	252	129	208	95	153	75	120	61	98	51	82	44	71	34	54	
		8.3	9.4	10.5	12.9	15.3	17.8	20.2	22.7	27.7	

7.0 Reversed HR-36®

Figure 7.1 - Basic Dimensions and Panel Attachment (Reversed HR-36):
36/3 Pattern:	
	
36/6 Pattern:	

Table 7.1 - Section Properties (Reversed HR-36):

Gauge	
Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
					
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section
Modulus	Negative Section
Modulus	
	w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.89	0.0173	80	82	0.2617	0.0983	0.71	0.1224	0.1382	
24	1.20	0.0232	50	65	0.3530	0.1333	0.72	0.1635	0.1845	
22	1.51	0.0294	50	65	0.4447	0.1667	0.72	0.2064	0.2328	
20	1.82	0.0354	40	55	0.5354	0.2000	0.72	0.2477	0.2790	
18	2.36	0.0459	40	55	0.6942	0.2600	0.73	0.3190	0.3593	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0991	0.0817	0.51	0.0627	0.0840	0.89	0.0768	0.0872	0.0888	
24	0.1796	0.1133	0.61	0.1135	0.1233	0.84	0.1277	0.1200	0.1267	
22	0.2723	0.1567	0.64	0.1564	0.1567	0.79	0.1766	0.1600	0.1600	
20	0.4039	0.2000	0.67	0.2102	0.2000	0.77	0.2379	0.2000	0.2000	
18	0.6179	0.2600	0.71	0.2987	0.2600	0.74	0.3160	0.2600	0.2600	

Table 7.2 - Inward (Positive) Uniform Allowable Load Table (Reversed HR-36):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	
		ASD, W/Ω	375	240	167	94	60	42	31	23	15	
	Single Span	LRFD, φW	596	381	265	149	95	66	49	37	24	
		L/240
L/180	-
-	-
-	-
-	89
-	46
-	26
35	17
22	11
15	6
8	
		L/120	-	-	-	-	-	-	-	22	11	
		ASD, W/Ω	342	239	175	104	68	49	35	27	18	

26	Double Span	LRFD, φW	517	361	264	157	103	73	54	41	27	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	27
-	14
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	392	279	207	126	84	60	44	34	22	
	Triple Span	LRFD, φW	593	421	313	190	127	90	67	51	33	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	50
-	31
42	21
28	11
14	
		L/120	-	-	-	-	-	-	-	-	22	
		ASD, W/Ω	567	363	252	142	91	63	46	35	23	
	Single Span	LRFD, φW	899	575	399	225	144	100	73	56	36	
		L/240
L/180	-
-	-
-	-
-	123
-	63
84	36
49	23
31	15
20	8
10	
		L/120	-	-	-	-	-	-	46	31	16	
		ASD, W/Ω	555	371	265	153	99	69	50	39	25	

24	Double Span	LRFD, φW	836	559	399	230	149	104	76	59	38	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	37
-	19
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	659	448	322	189	123	86	64	48	31	
	Triple Span	LRFD, φW	994	675	485	284	185	129	96	73	47	
		L/240
L/180	-
-	-
-	-
-	-
-	119
-	69
-	43
58	29
39	15
20	
		L/120	-	-	-	-	-	-	-	-	30	
		ASD, W/Ω	780	499	347	195	125	87	64	49	31	
	Single Span	LRFD, φW	1238	792	550	310	198	138	101	77	50	
		L/240
L/180	-
-	-
-	-
-	164
-	84
112	49
65	31
41	20
27	10
14	
		L/120	-	-	-	-	-	-	61	41	21	
		ASD, W/Ω	794	526	373	214	138	97	71	54	35	

22	Double Span	LRFD, φW	1195	791	561	322	208	145	107	81	53	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	49
-	25
34	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	953	639	456	264	171	119	88	67	43	
	Triple Span	LRFD, φW	1436	963	687	397	258	180	133	102	65	
		L/240
L/180	-
-	-
-	-
-	-
-	158
-	92
-	58
77	39
52	20
26	
		L/120	-	-	-	-	-	-	-	-	40	

Table 7.2 (Cont’d) - Inward (Positive) Uniform Allowable Load Table (Reversed HR-36):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	
		ASD, W/Ω	839	537	373	210	134	93	69	52	34	
	Single Span	LRFD, φW	1331	852	592	333	213	148	109	83	53	
		L/240
L/180	-
-	-
-	-
-	205
-	105
-	61
81	38
51	26
34	13
17	
		L/120	-	-	-	-	-	-	-	51	26	
		ASD, W/Ω	867	572	404	231	149	104	76	58	38	

20	Double Span	LRFD, φW	1306	861	608	348	224	156	115	88	57	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	32
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1046	698	496	286	185	129	96	73	47	
	Triple Span	LRFD, φW	1576	1051	747	430	278	194	144	110	71	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	115
-	72
-	48
64	25
33	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1192	763	530	298	191	132	97	75	48	
	Single Span	LRFD, φW	1892	1211	841	473	303	210	154	118	76	
		L/240
L/180	-
-	-
-	-
-	266
-	136
182	79
105	50
66	33
44	17
23	
		L/120	-	-	-	-	-	-	-	67	34	
		ASD, W/Ω	1146	758	536	307	198	138	102	78	50	

18	Double Span	LRFD, φW	1726	1140	807	461	298	208	153	117	75	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	-
-	-
-	-
-	41
-	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	1381	923	658	380	246	172	127	97	62	
	Triple Span	LRFD, φW	2081	1390	990	571	370	259	191	146	93	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	149
-	94
125	63
84	32
43	
		L/120	-	-	-	-	-	-	-	-	-	

Table 7.3 - Allowable Reactions at Supports (Reversed HR-36):

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	188
310	215
349	239
382	278
438	287
461	330
520	365
569	425
651	
24	End
Interior	274
453	312
507	344
552	398
628	419
674	477
754	527
821	609
934	
22	End
Interior	428
711	485
791	533
858	614
970	655
1058	742
1176	815
1276	939
1443	
20	End
Interior	485
809	547
895	599
968	687
1090	742
1203	837
1331	917
1440	1052
1621	
18	End
Interior	788
1322	883
1454	964
1565	1098
1751	1205
1967	1351
2163	1474
2327	1681
2604	

Reversed HR-36, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	284
142	426
213	236
118	355
177	156
89	248
133	100
71	159
106	70
59	110
89	51
51	81
76	39
39	62
62	25
25	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	355
177	532
266	284
142	426
213	236
118	355
177	156
89	248
133	100
71	159
106	70
59	110
89	51
51	81
76	39
39	62
62	25
25	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	100
56	159
84	70
46	110
70	51
40	81
60	39
35	62
52	25
25	40
40	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	70
39	110
59	51
34	81
50	39
29	62
44	25
23	40
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	51
26	78
39	39
23	62
34	25
18	40
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	25
14	40
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	284
142	426
213	236
118	355
177	156
89	248
133	100
71	159
106	70
59	110
89	51
51	81
76	39
39	62
62	25
25	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	100
58	159
87	70
48	110
72	51
41	81
62	39
36	62
54	25
25	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	51
28	81
41	39
24	62
36	25
19	40
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	39
20	61
30	25
16	40
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	25
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	39
20	54
27	25
16	40
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	51
28	75
37	39
24	62
33	25
19	40
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	100
53	143
72	70
44	110
60	51
38	81
51	39
33	62
45	25
25	40
36	

Reversed HR-36, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	377
189	566
283	302
151	452
226	251
126	377
189	177
94	281
141	113
75	180
113	79
63	125
94	58
54	92
81	44
44	70
70	28
28	45
45	
	12ga
(.1050")	#12
#12	36/6
36/3	377
189	566
283	302
151	452
226	251
126	377
189	177
94	281
141	113
75	180
113	79
63	125
94	58
54	92
81	44
44	70
70	28
28	45
45	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	79
46	125
70	58
40	92
60	44
35	70
52	28
28	45
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	58
34	92
50	44
29	70
44	28
23	45
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	44
23	68
34	28
18	45
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	177
93	279
139	113
74	180
112	79
62	125
93	58
53	92
80	44
44	70
70	28
28	45
45	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	113
58	174
87	79
48	125
72	58
41	92
62	44
36	70
54	28
28	45
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	44
24	70
36	28
19	45
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	28
16	45
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	28
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	44
24	65
33	28
19	45
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	79
44	119
60	58
38	92
51	44
33	70
45	28
26	45
36	

Reversed HR-36, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	478
239	717
358	382
191	573
287	319
159	478
239	239
119	358
179	156
96	248
143	108
80	172
119	80
68	126
102	61
60	97
90	39
39	62
62	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	278
139	418
209	209
104	313
157	156
84	248
125	108
70	172
104	80
60	126
90	61
52	97
78	39
39	62
62	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	93
46	139
70	80
40	119
60	61
35	97
52	39
28	62
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	67
34	101
50	59
29	88
44	39
23	62
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	46
23	68
34	37
18	55
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	186
93	279
139	149
74	223
112	108
62	172
93	80
53	126
80	61
46	97
70	39
37	62
56	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	116
58	174
87	96
48	145
72	80
41	124
62	61
36	97
54	39
29	62
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	48
24	72
36	39
19	58
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	32
16	49
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	32
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	48
24	65
33	39
19	52
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	88
44	119
60	76
38	102
51	61
33	89
45	39
26	62
36	

Reversed HR-36, 20ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	487
243	730
365	389
195	584
292	325
162	487
243	243
122	365
183	168
97	266
146	117
81	185
122	86
70	136
104	66
61	104
91	42
42	67
67	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	278
139	418
209	209
104	313
157	167
84	251
125	117
70	185
104	86
60	136
90	66
52	104
78	42
42	67
63	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	93
46	139
70	80
40	119
60	66
35	104
52	42
28	67
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	67
34	101
50	59
29	88
44	42
23	67
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	46
23	68
34	37
18	55
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	186
93	279
139	149
74	223
112	117
62	185
93	86
53	136
80	66
46	104
70	42
37	67
56	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	116
58	174
87	96
48	145
72	83
41	124
62	66
36	104
54	42
29	67
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	48
24	72
36	39
19	58
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	32
16	49
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	32
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	48
24	65
33	39
19	52
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	88
44	119
60	76
38	102
51	66
33	89
45	42
26	67
36	

Reversed HR-36, 18ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	537
269	806
403	430
215	644
322	358
179	537
269	269
134	403
201	215
107	322
161	166
90	263
134	122
77	193
115	93
67	148
101	60
54	95
81	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	278
139	418
209	209
104	313
157	167
84	251
125	139
70	209
104	119
60	179
90	93
52	148
78	60
42	95
63	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	139
70	209
104	111
56	167
84	93
46	139
70	80
40	119
60	70
35	104
52	56
28	84
42	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	117
59	176
88	94
47	141
70	78
39	117
59	67
34	101
50	59
29	88
44	47
23	70
35	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	91
46	137
68	73
37	110
55	61
30	91
46	52
26	78
39	46
23	68
34	37
18	55
27	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	35
18	53
26	28
14	42
21	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	23
12	35
18	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	248
124	372
186	186
93	279
139	149
74	223
112	124
62	186
93	106
53	159
80	93
46	139
70	60
37	95
56	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	145
72	217
108	116
58	174
87	96
48	145
72	83
41	124
62	72
36	108
54	58
29	87
43	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	96
48	145
72	77
39	116
58	64
32	96
48	55
28	83
41	48
24	72
36	39
19	58
29	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	81
41	122
61	65
32	97
49	54
27	81
41	46
23	70
35	41
20	61
30	32
16	49
24	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	25
13	38
19	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	19
10	29
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	16
8	24
12	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	21
10	28
14	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	27
13	36
18	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	80
40	108
54	64
32	87
43	54
27	72
36	46
23	62
31	40
20	54
27	32
16	43
22	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	97
48	131
65	78
39	105
52	65
32	87
44	55
28	75
37	48
24	65
33	39
19	52
26	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	132
66	179
89	106
53	143
72	88
44	119
60	76
38	102
51	66
33	89
45	53
26	72
36	

Table 7.9 - Shear and Flexibility (No. 26 gauge Reversed HR-36, 36/3):
26ga  Reverse HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	339	546	340	547	338	544	337	542	336	541	336	541	335	540	335	540	318	509	
		475.1	381.6	319.5	241.8	195.1	164.0	141.8	125.1	101.8	
8"	q
F	320	514	319	513	318	512	309	497	310	499	304	490	306	492	302	486	300	483	
		476.3	383.0	320.8	243.5	196.7	165.9	143.6	127.2	104.0	
12"	q
F	302	486	305	491	290	466	282	454	276	445	272	439	270	434	267	430	264	425	
		477.2	383.7	322.3	244.9	198.5	167.6	145.6	129.0	105.9	
24"	q
F	268	432	282	454	262	422	226	364	231	372	207	333	214	344	196	315	189	304	
		478.8	384.8	323.6	247.8	200.9	171.4	148.8	133.4	110.8	
36"	q
F	268	432	241	389	217	350	226	364	196	316	172	277	186	299	168	271	166	267	
		478.8	386.7	325.9	247.8	203.1	174.0	150.8	135.7	112.8	
48"	q
F	268	432	241	389	217	350	179	288	196	316	172	277	152	245	136	219	141	226	
		478.8	386.7	325.9	250.8	203.1	174.0	153.9	139.2	115.6	
1
per span	q
F	268	432	241	389	217	350	179	288	150	242	127	205	108	175	95	153	76	122	
		478.8	386.7	325.9	250.8	206.9	178.6	159.2	145.3	127.6	
none	q
F	198	318	168	270	145	234	108	175	84	136	69	110	58	94	51	82	41	66	
		482.1	390.9	330.9	257.5	215.3	188.6	170.9	158.7	144.3	

Table 7.10 - Shear and Flexibility (No. 26 gauge Reversed HR-36, 36/6):
26ga  Reverse HR-36   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	627	1009	627	1010	616	991	609	981	605	974	602	969	600	965	497	796	318	509	
		19.5	17.2	15.8	13.9	12.8	12.1	11.6	11.2	10.7	
8"	q
F	543	875	535	862	529	852	493	794	494	795	472	760	476	766	460	741	318	509	
		20.4	18.2	16.8	15.3	14.2	13.8	13.2	13.0	12.6	
12"	q
F	489	787	490	790	443	713	416	669	398	641	385	621	376	606	369	594	318	509	
		21.0	18.7	17.8	16.4	15.6	15.1	14.8	14.6	14.3	
24"	q
F	410	659	430	692	381	613	306	493	308	495	264	425	272	437	242	390	228	368	
		21.8	19.4	18.6	18.2	17.3	17.8	17.2	17.9	18.1	
36"	q
F	410	659	350	563	303	488	306	493	254	408	215	347	231	372	205	329	198	319	
		21.8	20.4	19.9	18.2	18.7	19.5	18.6	19.5	19.6	
48"	q
F	410	659	350	563	303	488	237	382	254	408	215	347	184	296	161	259	164	264	
		21.8	20.4	19.9	19.9	18.7	19.5	20.5	21.7	21.5	
1
per span	q
F	410	659	350	563	303	488	237	382	190	307	157	252	134	216	117	189	94	151	
		21.8	20.4	19.9	19.9	20.8	22.0	23.5	25.1	28.5	
none	q
F	297	479	246	396	208	334	153	246	120	193	98	158	84	135	73	118	59	94	
		23.3	22.3	22.1	22.8	24.4	26.4	28.6	30.9	35.8	

Table 7.11 - Shear and Flexibility (No. 24 gauge Reversed HR-36, 36/3):
24ga  Reverse HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	361	581	361	581	359	578	358	576	357	575	357	575	357	574	356	574	356	573	
		230.5	185.6	155.8	118.5	96.1	81.2	70.6	62.6	51.4	
8"	q
F	340	547	339	545	338	544	328	529	330	531	323	521	325	524	321	516	319	513	
		231.6	186.8	156.9	120.0	97.6	82.9	72.2	64.4	53.2	
12"	q
F	321	517	324	522	308	496	299	482	294	473	290	466	287	461	284	457	281	452	
		232.3	187.4	158.2	121.2	99.1	84.3	73.8	65.9	54.9	
24"	q
F	285	459	300	483	279	449	240	387	246	395	220	354	227	366	208	335	201	323	
		233.6	188.3	159.3	123.7	101.2	87.6	76.6	69.8	59.1	
36"	q
F	285	459	257	413	231	372	240	387	208	336	183	294	198	318	179	288	177	284	
		233.6	190.0	161.3	123.7	103.1	89.9	78.3	71.7	60.8	
48"	q
F	285	459	257	413	231	372	190	306	208	336	183	294	162	260	145	233	149	240	
		233.6	190.0	161.3	126.4	103.1	89.9	81.0	74.8	63.3	
1
per span	q
F	285	459	257	413	231	372	190	306	160	257	137	220	116	186	101	162	81	130	
		233.6	190.0	161.3	126.4	106.4	93.9	85.6	80.0	73.7	
none	q
F	210	338	179	288	154	248	117	188	91	147	74	120	62	100	54	87	43	70	
		236.5	193.6	165.6	132.1	113.6	102.5	95.7	91.6	88.1	

Table 7.12 - Shear and Flexibility (No. 24 gauge Reversed HR-36, 36/6):
24ga  Reverse HR-36   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	666	1073	667	1073	654	1053	647	1042	643	1035	640	1030	637	1026	636	1023	497	796	
		11.6	10.5	9.9	9.1	8.6	8.2	8.0	7.8	7.6	
8"	q
F	577	930	569	916	563	906	524	844	525	845	502	808	506	814	489	788	482	776	
		12.4	11.4	10.8	10.3	9.8	9.7	9.4	9.4	9.3	
12"	q
F	519	836	521	839	471	758	442	712	423	681	410	660	400	644	392	632	381	614	
		12.9	11.8	11.6	11.2	10.9	10.8	10.8	10.7	10.7	
24"	q
F	435	701	457	736	405	652	325	524	327	527	281	452	289	465	257	414	243	391	
		13.6	12.4	12.4	12.8	12.4	13.2	12.9	13.6	14.0	
36"	q
F	435	701	372	599	322	519	325	524	270	434	229	369	245	395	217	350	210	339	
		13.6	13.3	13.5	12.8	13.6	14.6	14.0	15.0	15.3	
48"	q
F	435	701	372	599	322	519	252	406	270	434	229	369	196	316	171	276	174	281	
		13.6	13.3	13.5	14.3	13.6	14.6	15.7	16.9	17.0	
1
per span	q
F	435	701	372	599	322	519	252	406	204	328	168	271	143	230	125	201	100	160	
		13.6	13.3	13.5	14.3	15.4	16.8	18.3	19.8	23.0	
none	q
F	316	509	261	421	222	357	164	264	129	208	106	171	89	144	78	125	62	100	
		14.9	14.9	15.3	16.8	18.6	20.6	22.7	24.8	29.3	

Table 7.13 - Shear and Flexibility (No. 22 gauge Reversed HR-36, 36/3):
22ga  Reverse HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	371	598	372	598	370	595	369	593	368	592	367	592	367	591	367	591	367	590	
		129.1	104.3	87.9	67.3	54.9	46.6	40.8	36.3	30.2	
8"	q
F	350	563	349	561	348	560	338	544	339	546	333	536	335	539	330	531	328	528	
		130.1	105.3	88.8	68.6	56.2	48.1	42.2	37.9	31.8	
12"	q
F	331	532	334	537	317	510	308	496	302	487	298	480	295	475	292	471	289	465	
		130.7	105.9	90.0	69.7	57.5	49.4	43.7	39.3	33.3	
24"	q
F	293	473	309	497	287	462	247	398	253	407	226	364	234	377	214	345	206	332	
		131.9	106.7	91.0	71.9	59.4	52.3	46.1	42.7	37.0	
36"	q
F	293	473	264	425	238	383	247	398	215	345	188	303	203	327	184	296	182	293	
		131.9	108.2	92.7	71.9	61.0	54.3	47.7	44.5	38.6	
48"	q
F	293	473	264	425	238	383	195	315	215	345	188	303	166	268	149	240	154	248	
		131.9	108.2	92.7	74.2	61.0	54.3	50.0	47.2	40.8	
1
per span	q
F	293	473	264	425	238	383	195	315	164	264	141	227	120	194	104	168	83	134	
		131.9	108.2	92.7	74.2	64.0	57.9	54.1	51.9	50.0	
none	q
F	216	348	184	296	159	256	121	196	95	153	78	125	65	105	56	90	45	72	
		134.5	111.4	96.6	79.3	70.4	65.6	63.1	62.1	62.8	

Table 7.14 - Shear and Flexibility (No. 22 gauge Reversed HR-36, 36/6):
22ga  Reverse HR-36   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	686	1104	686	1105	674	1084	666	1073	662	1066	659	1060	656	1056	654	1053	652	1049	
		8.0	7.4	7.1	6.7	6.4	6.2	6.1	6.0	5.9	
8"	q
F	594	957	586	943	579	933	539	869	540	870	516	831	521	838	504	811	496	799	
		8.7	8.2	7.9	7.7	7.5	7.5	7.4	7.5	7.4	
12"	q
F	535	861	537	864	485	780	455	733	436	701	422	679	412	663	404	650	393	632	
		9.1	8.5	8.6	8.5	8.5	8.5	8.6	8.6	8.7	
24"	q
F	448	722	471	758	417	671	335	539	337	542	289	466	297	479	265	426	250	402	
		9.7	9.1	9.3	10.0	9.8	10.6	10.4	11.2	11.6	
36"	q
F	448	722	383	616	332	534	335	539	277	447	236	380	253	407	224	360	217	349	
		9.7	9.9	10.2	10.0	10.9	11.9	11.5	12.4	12.8	
48"	q
F	448	722	383	616	332	534	260	418	277	447	236	380	203	327	177	284	180	289	
		9.7	9.9	10.2	11.3	10.9	11.9	13.0	14.1	14.2	
1
per span	q
F	448	722	383	616	332	534	260	418	211	340	174	281	148	239	129	207	103	165	
		9.7	9.9	10.2	11.3	12.5	13.8	15.2	16.7	19.6	
none	q
F	325	524	269	433	229	368	170	274	134	216	110	178	93	150	80	129	64	103	
		10.9	11.3	11.9	13.5	15.3	17.2	19.2	21.1	25.2	

Table 7.15 - Shear and Flexibility (No. 20 gauge Reversed HR-36, 36/3):
20ga  Reverse HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	371	598	372	598	370	595	369	593	368	592	367	592	367	591	367	591	367	590	
		82.3	66.7	56.4	43.5	35.7	30.5	26.8	24.1	20.2	
8"	q
F	350	563	349	561	348	560	338	544	339	546	333	536	335	539	330	531	328	528	
		83.2	67.6	57.3	44.7	36.9	31.9	28.1	25.5	21.7	
12"	q
F	331	532	334	537	317	510	308	496	302	487	298	480	295	475	292	471	289	465	
		83.8	68.1	58.3	45.6	38.1	33.1	29.5	26.8	23.1	
24"	q
F	293	473	309	497	287	462	247	398	253	407	226	364	234	377	214	345	206	332	
		84.9	68.9	59.2	47.7	39.8	35.7	31.7	29.9	26.5	
36"	q
F	293	473	264	425	238	383	247	398	215	345	188	303	203	327	184	296	182	293	
		84.9	70.2	60.8	47.7	41.3	37.6	33.1	31.5	27.9	
48"	q
F	293	473	264	425	238	383	195	315	215	345	188	303	166	268	149	240	154	248	
		84.9	70.2	60.8	49.8	41.3	37.6	35.3	33.9	29.8	
1
per span	q
F	293	473	264	425	238	383	195	315	164	264	141	227	121	195	105	169	83	134	
		84.9	70.2	60.8	49.8	44.0	40.8	39.0	38.2	38.3	
none	q
F	216	348	184	296	159	256	122	197	96	155	79	127	66	107	57	92	45	72	
		87.2	73.2	64.3	54.5	49.8	47.8	47.2	47.5	49.9	

Table 7.16 - Shear and Flexibility (No. 20 gauge Reversed HR-36, 36/6):
20ga  Reverse HR-36   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	686	1104	686	1105	674	1084	666	1073	662	1066	659	1060	656	1056	654	1053	652	1049	
		6.1	5.7	5.6	5.3	5.2	5.1	5.0	5.0	4.9	
8"	q
F	594	957	586	943	579	933	539	869	540	870	516	831	521	838	504	811	496	799	
		6.7	6.5	6.3	6.3	6.2	6.3	6.2	6.3	6.3	
12"	q
F	535	861	537	864	485	780	455	733	436	701	422	679	412	663	404	650	393	632	
		7.1	6.8	7.0	7.0	7.1	7.2	7.3	7.4	7.5	
24"	q
F	448	722	471	758	417	671	335	539	337	542	289	466	297	479	265	426	250	402	
		7.7	7.3	7.6	8.4	8.3	9.1	9.0	9.7	10.2	
36"	q
F	448	722	383	616	332	534	335	539	277	447	236	380	253	407	224	360	217	349	
		7.7	8.0	8.5	8.4	9.3	10.3	9.9	10.8	11.2	
48"	q
F	448	722	383	616	332	534	260	418	277	447	236	380	204	328	177	286	180	289	
		7.7	8.0	8.5	9.5	9.3	10.3	11.3	12.3	12.5	
1
per span	q
F	448	722	383	616	332	534	260	418	212	341	175	282	149	240	129	208	103	165	
		7.7	8.0	8.5	9.5	10.8	12.0	13.4	14.7	17.4	
none	q
F	325	524	269	433	229	368	171	275	135	218	111	179	94	151	81	131	64	103	
		8.7	9.3	10.0	11.6	13.3	15.1	16.9	18.8	22.5	

Table 7.17 - Shear and Flexibility (No. 18 gauge Reversed HR-36, 36/3):
18ga  Reverse HR-36   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	371	598	372	598	370	595	369	593	368	592	367	592	367	591	367	591	367	590	
		44.2	36.0	30.7	24.0	19.9	17.3	15.3	13.9	11.9	
8"	q
F	350	563	349	561	348	560	338	544	339	546	333	536	335	539	330	531	328	528	
		45.0	36.9	31.5	25.0	21.0	18.5	16.5	15.2	13.2	
12"	q
F	331	532	334	537	317	510	308	496	302	487	298	480	295	475	292	471	289	465	
		45.5	37.3	32.4	25.9	22.0	19.5	17.6	16.3	14.4	
24"	q
F	293	473	309	497	287	462	247	398	253	407	226	364	234	377	214	345	206	332	
		46.5	38.0	33.2	27.7	23.5	21.8	19.6	19.0	17.4	
36"	q
F	293	473	264	425	238	383	247	398	215	345	188	303	203	327	184	296	182	293	
		46.5	39.2	34.6	27.7	24.9	23.4	20.9	20.4	18.6	
48"	q
F	293	473	264	425	238	383	195	315	215	345	188	303	166	268	149	240	154	248	
		46.5	39.2	34.6	29.6	24.9	23.4	22.7	22.5	20.3	
1
per span	q
F	293	473	264	425	238	383	195	315	164	264	141	227	122	197	106	171	83	134	
		46.5	39.2	34.6	29.6	27.2	26.2	26.0	26.3	27.7	
none	q
F	216	348	184	296	159	256	123	199	97	156	80	128	67	108	58	93	45	72	
		48.5	41.7	37.7	33.7	32.3	32.4	33.2	34.5	38.0	

Table 7.18 - Shear and Flexibility (No. 18 gauge Reversed HR-36, 36/6):
18ga  Reverse HR-36   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	686	1104	686	1105	674	1084	666	1073	662	1066	659	1060	656	1056	654	1053	652	1049	
		4.3	4.2	4.1	4.0	4.0	3.9	3.9	3.9	3.9	
8"	q
F	594	957	586	943	579	933	539	869	540	870	516	831	521	838	504	811	496	799	
		4.9	4.8	4.7	4.9	4.8	5.0	4.9	5.0	5.1	
12"	q
F	535	861	537	864	485	780	455	733	436	701	422	679	412	663	404	650	393	632	
		5.2	5.1	5.4	5.5	5.7	5.8	5.9	6.0	6.1	
24"	q
F	448	722	471	758	417	671	335	539	337	542	289	466	297	479	265	426	250	402	
		5.8	5.5	5.9	6.7	6.7	7.4	7.4	8.0	8.5	
36"	q
F	448	722	383	616	332	534	335	539	277	447	236	380	253	407	224	360	217	349	
		5.8	6.2	6.7	6.7	7.6	8.5	8.2	9.0	9.4	
48"	q
F	448	722	383	616	332	534	260	418	277	447	236	380	205	330	178	287	180	289	
		5.8	6.2	6.7	7.7	7.6	8.5	9.4	10.3	10.5	
1
per span	q
F	448	722	383	616	332	534	260	418	212	341	176	284	150	242	130	210	103	166	
		5.8	6.2	6.7	7.7	8.9	10.0	11.2	12.4	14.8	
none	q
F	325	524	269	433	229	368	172	277	136	219	112	181	95	153	82	132	64	104	
		6.7	7.3	8.0	9.5	11.1	12.7	14.3	16.0	19.3	

8.0 Mini-V-Beam

Figure 8.1 - Basic Dimensions and Panel Attachment (Mini-V-Beam):
32/4 Pattern:	
	
32/7 Pattern:	

Table 8.1 - Section Properties (Mini-V-Beam):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section
Modulus	Negative Section
Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.92	0.0173	80	82	0.270	0.071	0.72	0.107	0.0990	
24	1.23	0.0232	50	65	0.361	0.096	0.73	0.142	0.1322	
22	1.56	0.0294	50	65	0.458	0.120	0.73	0.179	0.1668	
20	1.88	0.0354	40	55	0.551	0.146	0.73	0.215	0.2000	
18	2.43	0.0459	40	55	0.715	0.191	0.74	0.277	0.2573	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.140	0.071	0.69	0.092	0.070	0.75	0.088	0.0708	0.0705	
24	0.243	0.096	0.71	0.131	0.096	0.73	0.129	0.0956	0.0956	
22	0.350	0.120	0.72	0.166	0.120	0.72	0.167	0.1200	0.1200	
20	0.480	0.146	0.73	0.200	0.146	0.73	0.200	0.1463	0.1463	
18	0.687	0.191	0.74	0.257	0.191	0.74	0.257	0.1913	0.1913	

Table 8.2 - Inward (Positive) Uniform Allowable Loads (Mini-V-Beam):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' -	0"	
		ASD, W/Ω	551	353	245	138	88	61	45	34	22	
	Single Span	LRFD, φW	875	560	389	219	140	97	71	55	35	
		L/240
L/180	-
-	297
-	172
229	72
97	37
49	21
29	14
18	9
12	5
6	
		L/120	-	-	-	-	74	43	27	18	9	
		ASD, W/Ω	441	297	214	124	81	56	42	32	20	

26	Double Span	LRFD, φW	664	449	322	187	122	85	63	48	31	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	52
-	33
-	22
29	11
15	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	517	357	258	153	100	70	51	40	26	
	Triple Span	LRFD, φW	781	538	389	230	150	106	78	60	39	
		L/240
L/180	-
-	-
-	-
-	137
-	70
93	41
54	26
34	17
23	9
12	
		L/120	-	-	-	-	-	-	51	34	18	
		ASD, W/Ω	652	417	290	163	104	72	53	41	26	
	Single Span	LRFD, φW	1034	662	460	259	165	115	84	65	41	
		L/240
L/180	-
-	401
-	232
-	98
131	50
67	29
39	18
24	12
16	6
8	
		L/120	-	-	-	-	100	58	37	24	13	
		ASD, W/Ω	603	394	277	157	101	71	52	39	25	

24	Double Span	LRFD, φW	907	593	416	236	152	106	78	59	38	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	70
-	44
-	29
-	15
20	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	734	484	342	195	126	88	65	49	31	
	Triple Span	LRFD, φW	1106	729	514	294	189	132	97	74	48	
		L/240
L/180	-
-	-
-	-
-	185
-	95
126	55
73	34
46	23
31	12
16	
		L/120	-	-	-	-	-	-	-	46	24	
		ASD, W/Ω	831	532	369	208	133	92	68	52	33	
	Single Span	LRFD, φW	1318	843	586	329	211	146	108	82	53	
		L/240
L/180	-
-	503
-	291
-	123
164	63
84	36
49	23
31	15
20	8
10	
		L/120	-	-	-	-	126	73	46	31	16	
		ASD, W/Ω	798	517	362	206	131	92	68	51	33	

22	Double Span	LRFD, φW	1200	779	545	309	198	138	102	77	50	
		L/240
L/180	-
-	-
-	-
-	-
-	-
-	88
-	55
-	37
49	19
25	
		L/120	-	-	-	-	-	-	-	-	-	
		ASD, W/Ω	979	640	449	256	164	114	84	64	41	
	Triple Span	LRFD, φW	1473	962	676	385	247	172	127	96	62	
		L/240
L/180	-
-	-
-	-
-	232
-	119
158	69
92	43
58	29
39	15
20	
		L/120	-	-	-	-	-	-	-	58	30	

Table 8.2 (Cont’d) - Inward (Positive) Uniform Allowable Loads (Mini-V-Beam):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	

20		ASD, W/Ω	798	511	355	200	128	89	65	50	32	
	Single	LRFD, φW	1266	810	563	317	203	141	103	79	51	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	150
-
-	77
102
-	44
59
-	28
37
56	19
25
37	10
13
19	
	Span											
	
Double Span	ASD, W/Ω	770	499	348	197	126	88	64	49	32	
		LRFD, φW	1158	751	524	296	190	132	97	74	48	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	45
-
-	23
31
-	
		ASD, W/Ω	948	617	433	246	158	109	81	61	39	
	Triple	LRFD, φW	1427	929	651	370	237	165	121	93	59	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	145
-
-	84
-
-	53
70
-	35
47
-	18
24
36	
	Span											

18		ASD, W/Ω	1027	657	456	257	164	114	84	64	41	
	Single	LRFD, φW	1629	1043	724	407	261	181	133	102	65	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	196
-
-	100
134
-	58
77
-	37
49
73	24
33
49	13
17
25	
	Span											
	
Double Span	ASD, W/Ω	991	642	449	254	163	113	83	64	41	
		LRFD, φW	1491	965	675	382	245	171	125	96	61	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	59
-
-	30
40
-	
		ASD, W/Ω	1221	795	557	316	203	142	104	79	51	
	Triple	LRFD, φW	1837	1196	838	476	306	213	157	119	76	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	189
-
-	110
-
-	69
92
-	46
62
-	24
32
47	
	Span											

Table 8.3 - Allowable Reactions at Supports (Mini-V-Beam):

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	302
490	347
552	384
604	447
692	462
729	530
821	588
899	684
1029	
24	End
Interior	439
716	500
801	552
872	638
992	671
1065	765
1191	844
1297	976
1476	
22	End
Interior	684
1123	775
1249	852
1355	981
1532	1047
1670	1186
1857	1304
2015	1501
2279	
20	End
Interior	774
1277	873
1414	957
1528	1097
1721	1184
1900	1336
2103	1464
2274	1679
2560	
18	End
Interior	1255
2088	1407
2295	1535
2470	1750
2764	1921
3106	2153
3414	2349
3675	2678
4111	

Mini-V-Beam, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	465
266	698
399	372
213	559
319	310
177	465
266	230
133	349
199	147
106	233
160	102
89	162
133	75
75	102
102	57
57	68
68	35
35	35
35	
	12ga
(.1050")	#12
#12	32/7
32/4	465
266	698
399	372
213	559
319	310
177	465
266	230
133	349
199	147
106	233
160	102
89	162
133	75
75	102
102	57
57	68
68	35
35	35
35	
	14ga
(.0700")	#12
#12	32/7
32/4	365
209	548
313	292
167	439
251	244
139	365
209	183
104	274
157	146
84	219
125	102
70	162
104	75
60	102
90	57
52	68
68	35
35	35
35	
	16ga
(.0590")	#12
#12	32/7
32/4	308
176	462
264	246
141	370
211	205
117	308
176	154
88	231
132	123
70	185
106	102
59	154
88	75
50	102
75	57
44	68
66	35
35	35
35	
	18ga
(.0459")	#12
#12	32/7
32/4	240
137	359
205	192
110	288
164	160
91	240
137	120
68	180
103	96
55	144
82	80
46	120
68	68
39	102
59	57
34	68
51	35
27	35
35	
	20ga
(.0354")	#12
#12	32/7
32/4	185
106	277
158	148
84	222
127	123
70	185
106	92
53	139
79	74
42	111
63	62
35	92
53	53
30	79
45	46
26	68
40	35
21	35
32	
	22ga
(.0294")	#12
#12	32/7
32/4	154
88	230
132	123
70	184
105	102
58	154
88	77
44	115
66	61
35	92
53	51
29	77
44	44
25	66
38	38
22	58
33	31
18	35
26	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	465
266	698
399	372
213	559
319	310
177	465
266	230
133	349
199	147
106	233
160	102
89	162
133	75
75	102
102	57
57	68
68	35
35	35
35	
	12ga
(.1050")	#12
#12	32/7
32/4	380
217	569
325	304
174	455
260	253
145	380
217	190
108	285
163	147
87	228
130	102
72	162
108	75
62	102
93	57
54	68
68	35
35	35
35	
	14ga
(.0700")	#12
#12	32/7
32/4	253
145	380
217	202
116	304
174	169
96	253
145	127
72	190
108	101
58	152
87	84
48	127
72	72
41	102
62	57
36	68
54	35
29	35
35	
	16ga
(.0590")	#12
#12	32/7
32/4	213
122	320
183	171
97	256
146	142
81	213
122	107
61	160
91	85
49	128
73	71
41	107
61	61
35	91
52	53
30	68
46	35
24	35
35	
	18ga
(.0459")	#12
#12	32/7
32/4	166
95	249
142	133
76	199
114	111
63	166
95	83
47	124
71	66
38	100
57	55
32	83
47	47
27	71
41	41
24	62
36	33
19	35
28	
	20ga
(.0354")	#12
#12	32/7
32/4	128
73	192
110	102
58	154
88	85
49	128
73	64
37	96
55	51
29	77
44	43
24	64
37	37
21	55
31	32
18	48
27	26
15	35
22	
	22ga
(.0294")	#12
#12	32/7
32/4	106
61	159
91	85
49	128
73	71
40	106
61	53
30	80
46	43
24	64
36	35
20	53
30	30
17	46
26	27
15	40
23	21
12	32
18	

Plywood & OSB	15/32"	#14
#14	32/7
32/4	137
79	186
106	110
63	148
85	92
52	124
71	69
39	93
53	55
31	74
42	46
26	62
35	39
22	53
30	34
20	46
27	27
16	35
21	
	19/32"	#14
#14	32/7
32/4	174
100	235
134	139
80	188
107	116
66	157
90	87
50	118
67	70
40	94
54	58
33	78
45	50
28	67
38	44
25	59
34	35
20	35
27	
	23/32"	#14
#14	32/7
32/4	211
120	285
163	169
96	228
130	141
80	190
108	105
60	142
81	84
48	114
65	70
40	95
54	60
34	81
46	53
30	68
41	35
24	35
33	

Lumber (DFL)	
1" min	#9
#9	32/7
32/4	254
145	343
196	203
116	275
157	170
97	229
131	127
73	172
98	102
58	137
78	85
48	114
65	73
42	98
56	57
36	68
49	35
29	35
35	
		#14
#14	32/7
32/4	348
199	469
268	278
159	376
215	232
132	313
179	174
99	235
134	139
79	188
107	102
66	156
89	75
57	102
77	57
50	68
67	35
35	35
35	

Mini-V-Beam, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	495
283	742
424	396
226	594
339	330
189	495
283	204
141	323
212	130
113	207
170	91
91	144
141	67
67	106
106	51
51	81
81	33
33	47
47	
	12ga
(.1050")	#12
#12	32/7
32/4	495
283	742
424	396
226	594
339	330
189	495
283	204
141	323
212	130
113	207
170	91
91	144
141	67
67	106
106	51
51	81
81	33
33	47
47	
	14ga
(.0700")	#12
#12	32/7
32/4	365
209	548
313	292
167	439
251	244
139	365
209	183
104	274
157	130
84	207
125	91
70	144
104	67
60	106
90	51
51	81
78	33
33	47
47	
	16ga
(.0590")	#12
#12	32/7
32/4	308
176	462
264	246
141	370
211	205
117	308
176	154
88	231
132	123
70	185
106	91
59	144
88	67
50	106
75	51
44	81
66	33
33	47
47	
	18ga
(.0459")	#12
#12	32/7
32/4	240
137	359
205	192
110	288
164	160
91	240
137	120
68	180
103	96
55	144
82	80
46	120
68	67
39	103
59	51
34	81
51	33
27	47
41	
	20ga
(.0354")	#12
#12	32/7
32/4	185
106	277
158	148
84	222
127	123
70	185
106	92
53	139
79	74
42	111
63	62
35	92
53	53
30	79
45	46
26	69
40	33
21	47
32	
	22ga
(.0294")	#12
#12	32/7
32/4	154
88	230
132	123
70	184
105	102
58	154
88	77
44	115
66	61
35	92
53	51
29	77
44	44
25	66
38	38
22	58
33	31
18	46
26	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	488
279	732
418	390
223	586
335	325
186	488
279	204
139	323
209	130
112	207
167	91
91	144
139	67
67	106
106	51
51	81
81	33
33	47
47	
	12ga
(.1050")	#12
#12	32/7
32/4	380
217	569
325	304
174	455
260	253
145	380
217	190
108	285
163	130
87	207
130	91
72	144
108	67
62	106
93	51
51	81
81	33
33	47
47	
	14ga
(.0700")	#12
#12	32/7
32/4	253
145	380
217	202
116	304
174	169
96	253
145	127
72	190
108	101
58	152
87	84
48	127
72	67
41	106
62	51
36	81
54	33
29	47
43	
	16ga
(.0590")	#12
#12	32/7
32/4	213
122	320
183	171
97	256
146	142
81	213
122	107
61	160
91	85
49	128
73	71
41	107
61	61
35	91
52	51
30	80
46	33
24	47
37	
	18ga
(.0459")	#12
#12	32/7
32/4	166
95	249
142	133
76	199
114	111
63	166
95	83
47	124
71	66
38	100
57	55
32	83
47	47
27	71
41	41
24	62
36	33
19	47
28	
	20ga
(.0354")	#12
#12	32/7
32/4	128
73	192
110	102
58	154
88	85
49	128
73	64
37	96
55	51
29	77
44	43
24	64
37	37
21	55
31	32
18	48
27	26
15	38
22	
	22ga
(.0294")	#12
#12	32/7
32/4	106
61	159
91	85
49	128
73	71
40	106
61	53
30	80
46	43
24	64
36	35
20	53
30	30
17	46
26	27
15	40
23	21
12	32
18	

Plywood & OSB	15/32"	#14
#14	32/7
32/4	137
79	186
106	110
63	148
85	92
52	124
71	69
39	93
53	55
31	74
42	46
26	62
35	39
22	53
30	34
20	46
27	27
16	37
21	
	19/32"	#14
#14	32/7
32/4	174
100	235
134	139
80	188
107	116
66	157
90	87
50	118
67	70
40	94
54	58
33	78
45	50
28	67
38	44
25	59
34	33
20	47
27	
	23/32"	#14
#14	32/7
32/4	211
120	285
163	169
96	228
130	141
80	190
108	105
60	142
81	84
48	114
65	70
40	95
54	60
34	81
46	51
30	71
41	33
24	47
33	

Lumber (DFL)	
1" min	#9
#9	32/7
32/4	254
145	343
196	203
116	275
157	170
97	229
131	127
73	172
98	102
58	137
78	85
48	114
65	67
42	98
56	51
36	81
49	33
29	47
39	
		#14
#14	32/7
32/4	348
199	469
268	278
159	376
215	232
132	313
179	174
99	235
134	130
79	188
107	91
66	144
89	67
57	106
77	51
50	81
67	33
33	47
47	

Mini-V-Beam, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	627
358	941
537	502
287	752
430	418
239	627
358	260
179	412
269	166
143	264
215	115
115	183
179	85
85	134
134	65
65	103
103	42
42	59
59	
	12ga
(.1050")	#12
#12	32/7
32/4	548
313	822
470	439
251	658
376	365
209	548
313	260
157	411
235	166
125	264
188	115
104	183
157	85
85	134
134	65
65	103
103	42
42	59
59	
	14ga
(.0700")	#12
#12	32/7
32/4	365
209	548
313	292
167	439
251	244
139	365
209	183
104	274
157	146
84	219
125	115
70	183
104	85
60	134
90	65
52	103
78	42
42	59
59	
	16ga
(.0590")	#12
#12	32/7
32/4	308
176	462
264	246
141	370
211	205
117	308
176	154
88	231
132	123
70	185
106	103
59	154
88	85
50	132
75	65
44	103
66	42
35	59
53	
	18ga
(.0459")	#12
#12	32/7
32/4	240
137	359
205	192
110	288
164	160
91	240
137	120
68	180
103	96
55	144
82	80
46	120
68	68
39	103
59	60
34	90
51	42
27	59
41	
	20ga
(.0354")	#12
#12	32/7
32/4	185
106	277
158	148
84	222
127	123
70	185
106	92
53	139
79	74
42	111
63	62
35	92
53	53
30	79
45	46
26	69
40	37
21	55
32	
	22ga
(.0294")	#12
#12	32/7
32/4	154
88	230
132	123
70	184
105	102
58	154
88	77
44	115
66	61
35	92
53	51
29	77
44	44
25	66
38	38
22	58
33	31
18	46
26	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	488
279	732
418	390
223	586
335	325
186	488
279	244
139	366
209	166
112	264
167	115
93	183
139	85
80	134
120	65
65	103
103	42
42	59
59	
	12ga
(.1050")	#12
#12	32/7
32/4	380
217	569
325	304
174	455
260	253
145	380
217	190
108	285
163	152
87	228
130	115
72	183
108	85
62	134
93	65
54	103
81	42
42	59
59	
	14ga
(.0700")	#12
#12	32/7
32/4	253
145	380
217	202
116	304
174	169
96	253
145	127
72	190
108	101
58	152
87	84
48	127
72	72
41	108
62	63
36	95
54	42
29	59
43	
	16ga
(.0590")	#12
#12	32/7
32/4	213
122	320
183	171
97	256
146	142
81	213
122	107
61	160
91	85
49	128
73	71
41	107
61	61
35	91
52	53
30	80
46	42
24	59
37	
	18ga
(.0459")	#12
#12	32/7
32/4	166
95	249
142	133
76	199
114	111
63	166
95	83
47	124
71	66
38	100
57	55
32	83
47	47
27	71
41	41
24	62
36	33
19	50
28	
	20ga
(.0354")	#12
#12	32/7
32/4	128
73	192
110	102
58	154
88	85
49	128
73	64
37	96
55	51
29	77
44	43
24	64
37	37
21	55
31	32
18	48
27	26
15	38
22	
	22ga
(.0294")	#12
#12	32/7
32/4	106
61	159
91	85
49	128
73	71
40	106
61	53
30	80
46	43
24	64
36	35
20	53
30	30
17	46
26	27
15	40
23	21
12	32
18	

Plywood & OSB	15/32"	#14
#14	32/7
32/4	137
79	186
106	110
63	148
85	92
52	124
71	69
39	93
53	55
31	74
42	46
26	62
35	39
22	53
30	34
20	46
27	27
16	37
21	
	19/32"	#14
#14	32/7
32/4	174
100	235
134	139
80	188
107	116
66	157
90	87
50	118
67	70
40	94
54	58
33	78
45	50
28	67
38	44
25	59
34	35
20	47
27	
	23/32"	#14
#14	32/7
32/4	211
120	285
163	169
96	228
130	141
80	190
108	105
60	142
81	84
48	114
65	70
40	95
54	60
34	81
46	53
30	71
41	42
24	57
33	

Lumber (DFL)	
1" min	#9
#9	32/7
32/4	254
145	343
196	203
116	275
157	170
97	229
131	127
73	172
98	102
58	137
78	85
48	114
65	73
42	98
56	64
36	86
49	42
29	59
39	
		#14
#14	32/7
32/4	348
199	469
268	278
159	376
215	232
132	313
179	174
99	235
134	139
79	188
107	115
66	156
89	85
57	134
77	65
50	103
67	42
40	59
54	

Mini-V-Beam, 20ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	639
365	958
548	511
292	767
438	426
243	639
365	249
183	396
274	160
146	253
219	111
111	176
176	81
81	129
129	62
62	99
99	40
40	63
63	
	12ga
(.1050")	#12
#12	32/7
32/4	548
313	822
470	439
251	658
376	365
209	548
313	249
157	396
235	160
125	253
188	111
104	176
157	81
81	129
129	62
62	99
99	40
40	63
63	
	14ga
(.0700")	#12
#12	32/7
32/4	365
209	548
313	292
167	439
251	244
139	365
209	183
104	274
157	146
84	219
125	111
70	176
104	81
60	129
90	62
52	99
78	40
40	63
63	
	16ga
(.0590")	#12
#12	32/7
32/4	308
176	462
264	246
141	370
211	205
117	308
176	154
88	231
132	123
70	185
106	103
59	154
88	81
50	129
75	62
44	99
66	40
35	63
53	
	18ga
(.0459")	#12
#12	32/7
32/4	240
137	359
205	192
110	288
164	160
91	240
137	120
68	180
103	96
55	144
82	80
46	120
68	68
39	103
59	60
34	90
51	40
27	63
41	
	20ga
(.0354")	#12
#12	32/7
32/4	185
106	277
158	148
84	222
127	123
70	185
106	92
53	139
79	74
42	111
63	62
35	92
53	53
30	79
45	46
26	69
40	37
21	55
32	
	22ga
(.0294")	#12
#12	32/7
32/4	154
88	230
132	123
70	184
105	102
58	154
88	77
44	115
66	61
35	92
53	51
29	77
44	44
25	66
38	38
22	58
33	31
18	46
26	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	488
279	732
418	390
223	586
335	325
186	488
279	244
139	366
209	160
112	253
167	111
93	176
139	81
80	129
120	62
62	99
99	40
40	63
63	
	12ga
(.1050")	#12
#12	32/7
32/4	380
217	569
325	304
174	455
260	253
145	380
217	190
108	285
163	152
87	228
130	111
72	176
108	81
62	129
93	62
54	99
81	40
40	63
63	
	14ga
(.0700")	#12
#12	32/7
32/4	253
145	380
217	202
116	304
174	169
96	253
145	127
72	190
108	101
58	152
87	84
48	127
72	72
41	108
62	62
36	95
54	40
29	63
43	
	16ga
(.0590")	#12
#12	32/7
32/4	213
122	320
183	171
97	256
146	142
81	213
122	107
61	160
91	85
49	128
73	71
41	107
61	61
35	91
52	53
30	80
46	40
24	63
37	
	18ga
(.0459")	#12
#12	32/7
32/4	166
95	249
142	133
76	199
114	111
63	166
95	83
47	124
71	66
38	100
57	55
32	83
47	47
27	71
41	41
24	62
36	33
19	50
28	
	20ga
(.0354")	#12
#12	32/7
32/4	128
73	192
110	102
58	154
88	85
49	128
73	64
37	96
55	51
29	77
44	43
24	64
37	37
21	55
31	32
18	48
27	26
15	38
22	
	22ga
(.0294")	#12
#12	32/7
32/4	106
61	159
91	85
49	128
73	71
40	106
61	53
30	80
46	43
24	64
36	35
20	53
30	30
17	46
26	27
15	40
23	21
12	32
18	

Plywood & OSB	15/32"	#14
#14	32/7
32/4	137
79	186
106	110
63	148
85	92
52	124
71	69
39	93
53	55
31	74
42	46
26	62
35	39
22	53
30	34
20	46
27	27
16	37
21	
	19/32"	#14
#14	32/7
32/4	174
100	235
134	139
80	188
107	116
66	157
90	87
50	118
67	70
40	94
54	58
33	78
45	50
28	67
38	44
25	59
34	35
20	47
27	
	23/32"	#14
#14	32/7
32/4	211
120	285
163	169
96	228
130	141
80	190
108	105
60	142
81	84
48	114
65	70
40	95
54	60
34	81
46	53
30	71
41	40
24	57
33	

Lumber (DFL)	
1" min	#9
#9	32/7
32/4	254
145	343
196	203
116	275
157	170
97	229
131	127
73	172
98	102
58	137
78	85
48	114
65	73
42	98
56	62
36	86
49	40
29	63
39	
		#14
#14	32/7
32/4	348
199	469
268	278
159	376
215	232
132	313
179	174
99	235
134	139
79	188
107	111
66	156
89	81
57	129
77	62
50	99
67	40
40	63
54	

Mini-V-Beam, 18ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	705
403	1057
604	564
322	846
483	470
269	705
403	321
201	509
302	205
161	326
242	143
134	226
201	105
105	166
166	80
80	127
127	51
51	81
81	
	12ga
(.1050")	#12
#12	32/7
32/4	548
313	822
470	439
251	658
376	365
209	548
313	274
157	411
235	205
125	326
188	143
104	226
157	105
90	166
134	80
78	127
117	51
51	81
81	
	14ga
(.0700")	#12
#12	32/7
32/4	365
209	548
313	292
167	439
251	244
139	365
209	183
104	274
157	146
84	219
125	122
70	183
104	104
60	157
90	80
52	127
78	51
42	81
63	
	16ga
(.0590")	#12
#12	32/7
32/4	308
176	462
264	246
141	370
211	205
117	308
176	154
88	231
132	123
70	185
106	103
59	154
88	88
50	132
75	77
44	116
66	51
35	81
53	
	18ga
(.0459")	#12
#12	32/7
32/4	240
137	359
205	192
110	288
164	160
91	240
137	120
68	180
103	96
55	144
82	80
46	120
68	68
39	103
59	60
34	90
51	48
27	72
41	
	20ga
(.0354")	#12
#12	32/7
32/4	185
106	277
158	148
84	222
127	123
70	185
106	92
53	139
79	74
42	111
63	62
35	92
53	53
30	79
45	46
26	69
40	37
21	55
32	
	22ga
(.0294")	#12
#12	32/7
32/4	154
88	230
132	123
70	184
105	102
58	154
88	77
44	115
66	61
35	92
53	51
29	77
44	44
25	66
38	38
22	58
33	31
18	46
26	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	32/7
32/4	488
279	732
418	390
223	586
335	325
186	488
279	244
139	366
209	195
112	293
167	143
93	226
139	105
80	166
120	80
70	127
105	51
51	81
81	
	12ga
(.1050")	#12
#12	32/7
32/4	380
217	569
325	304
174	455
260	253
145	380
217	190
108	285
163	152
87	228
130	127
72	190
108	105
62	163
93	80
54	127
81	51
43	81
65	
	14ga
(.0700")	#12
#12	32/7
32/4	253
145	380
217	202
116	304
174	169
96	253
145	127
72	190
108	101
58	152
87	84
48	127
72	72
41	108
62	63
36	95
54	51
29	76
43	
	16ga
(.0590")	#12
#12	32/7
32/4	213
122	320
183	171
97	256
146	142
81	213
122	107
61	160
91	85
49	128
73	71
41	107
61	61
35	91
52	53
30	80
46	43
24	64
37	
	18ga
(.0459")	#12
#12	32/7
32/4	166
95	249
142	133
76	199
114	111
63	166
95	83
47	124
71	66
38	100
57	55
32	83
47	47
27	71
41	41
24	62
36	33
19	50
28	
	20ga
(.0354")	#12
#12	32/7
32/4	128
73	192
110	102
58	154
88	85
49	128
73	64
37	96
55	51
29	77
44	43
24	64
37	37
21	55
31	32
18	48
27	26
15	38
22	
	22ga
(.0294")	#12
#12	32/7
32/4	106
61	159
91	85
49	128
73	71
40	106
61	53
30	80
46	43
24	64
36	35
20	53
30	30
17	46
26	27
15	40
23	21
12	32
18	

Plywood & OSB	15/32"	#14
#14	32/7
32/4	137
79	186
106	110
63	148
85	92
52	124
71	69
39	93
53	55
31	74
42	46
26	62
35	39
22	53
30	34
20	46
27	27
16	37
21	
	19/32"	#14
#14	32/7
32/4	174
100	235
134	139
80	188
107	116
66	157
90	87
50	118
67	70
40	94
54	58
33	78
45	50
28	67
38	44
25	59
34	35
20	47
27	
	23/32"	#14
#14	32/7
32/4	211
120	285
163	169
96	228
130	141
80	190
108	105
60	142
81	84
48	114
65	70
40	95
54	60
34	81
46	53
30	71
41	42
24	57
33	

Lumber (DFL)	
1" min	#9
#9	32/7
32/4	254
145	343
196	203
116	275
157	170
97	229
131	127
73	172
98	102
58	137
78	85
48	114
65	73
42	98
56	64
36	86
49	51
29	69
39	
		#14
#14	32/7
32/4	348
199	469
268	278
159	376
215	232
132	313
179	174
99	235
134	139
79	188
107	116
66	156
89	99
57	134
77	80
50	117
67	51
40	81
54	

Table 8.9 - Shear and Flexibility (No. 26 gauge Mini-V-Beam, 32/4):
26ga   Mini-V-Beam   32/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	486	782	487	785	482	775	479	772	478	769	477	768	476	767	383	613	245	392	
		99.9	81.6	69.6	54.5	45.5	39.4	35.1	31.9	27.3	
8"	q
F	425	684	424	683	424	683	402	648	407	655	393	633	398	641	383	613	245	392	
		101.3	83.1	71.0	56.4	47.3	41.6	37.2	34.2	29.8	
12"	q
F	378	609	388	625	354	571	341	549	332	535	326	525	322	518	318	512	245	392	
		102.2	83.9	72.6	58.0	49.2	43.4	39.3	36.2	31.9	
24"	q
F	301	484	335	539	298	480	241	388	252	406	218	351	230	370	206	331	198	319	
		103.9	85.1	74.1	61.1	51.9	47.6	42.9	41.1	37.3	
36"	q
F	301	484	256	412	222	357	241	388	201	323	170	274	191	308	170	274	169	273	
		103.9	87.2	76.6	61.1	54.3	50.5	45.1	43.6	39.5	
48"	q
F	301	484	256	412	222	357	173	278	201	323	170	274	145	233	127	204	137	220	
		103.9	87.2	76.6	64.4	54.3	50.5	48.4	47.4	42.6	
1
per span	q
F	301	484	256	412	222	357	173	278	136	219	112	180	95	152	83	133	66	107	
		103.9	87.2	76.6	64.4	58.4	55.4	54.2	54.0	55.7	
none	q
F	179	289	142	229	117	188	85	137	66	106	53	86	44	72	39	63	31	50	
		107.4	91.6	81.9	71.5	67.3	66.1	66.6	68.2	73.4	

Table 8.10 - Shear and Flexibility (No. 26 gauge Mini-V-Beam, 32/7):
26ga   Mini-V-Beam   32/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	757	1218	760	1223	739	1189	729	1173	723	1163	681	1090	500	801	383	613	245	392	
		10.8	10.4	10.2	10.0	9.8	9.7	9.6	9.6	9.5	
8"	q
F	602	969	594	956	588	947	537	865	542	872	513	825	500	801	383	613	245	392	
		11.9	11.6	11.4	11.6	11.4	11.6	11.5	11.7	11.7	
12"	q
F	514	827	523	843	459	739	429	691	410	661	398	640	388	625	381	613	245	392	
		12.5	12.1	12.6	12.8	13.0	13.1	13.3	13.4	13.6	
24"	q
F	399	643	436	702	376	606	293	472	300	484	254	410	265	427	234	376	222	358	
		13.5	13.0	13.6	15.0	15.0	16.3	16.1	17.3	18.1	
36"	q
F	399	643	331	532	281	453	293	472	237	382	196	315	217	349	190	306	187	301	
		13.5	14.2	15.1	15.0	16.6	18.3	17.7	19.1	19.8	
48"	q
F	399	643	331	532	281	453	211	340	237	382	196	315	167	268	146	235	152	244	
		13.5	14.2	15.1	17.0	16.6	18.3	20.0	21.8	22.1	
1
per span	q
F	399	643	331	532	281	453	211	340	167	269	137	221	116	187	102	164	82	131	
		13.5	14.2	15.1	17.0	19.1	21.3	23.6	25.8	30.4	
none	q
F	256	413	203	327	168	270	123	198	97	155	79	127	66	107	58	93	46	75	
		15.3	16.5	17.8	20.6	23.6	26.7	29.8	33.0	39.4	

Table 8.11 - Shear and Flexibility (No. 24 gauge Mini-V-Beam, 32/4):
24ga   Mini-V-Beam   32/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	516	831	518	834	512	824	510	820	508	818	507	816	506	815	506	814	381	610	
		50.5	41.7	36.0	28.8	24.5	21.6	19.6	18.0	15.9	
8"	q
F	452	727	451	726	451	726	428	689	432	696	418	673	423	681	413	665	381	610	
		51.7	43.0	37.3	30.5	26.1	23.5	21.3	20.0	17.9	
12"	q
F	402	647	413	665	377	607	362	583	353	569	347	558	342	551	338	545	333	536	
		52.5	43.7	38.6	31.8	27.8	25.1	23.2	21.8	19.8	
24"	q
F	320	515	356	573	317	510	256	413	268	432	232	373	244	393	219	352	211	339	
		54.0	44.7	39.9	34.5	30.1	28.7	26.3	26.0	24.5	
36"	q
F	320	515	272	438	236	379	256	413	213	343	182	293	203	327	181	291	180	290	
		54.0	46.5	42.0	34.5	32.1	31.2	28.2	28.1	26.4	
48"	q
F	320	515	272	438	236	379	184	296	213	343	182	293	155	250	135	217	145	234	
		54.0	46.5	42.0	37.4	32.1	31.2	31.1	31.5	29.1	
1
per span	q
F	320	515	272	438	236	379	184	296	146	236	120	194	102	164	88	142	70	113	
		54.0	46.5	42.0	37.4	35.7	35.5	36.1	37.2	40.3	
none	q
F	191	307	153	246	126	202	92	148	72	115	58	94	48	78	41	67	33	53	
		57.0	50.4	46.6	43.5	43.3	44.6	46.8	49.4	55.6	

Table 8.12 - Shear and Flexibility (No. 24 gauge Mini-V-Beam, 32/7):
24ga   Mini-V-Beam   32/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	804	1295	808	1300	785	1264	775	1247	768	1237	763	1229	760	1224	595	953	381	610	
		7.6	7.4	7.5	7.4	7.3	7.3	7.3	7.3	7.3	
8"	q
F	640	1030	631	1016	626	1007	571	919	576	927	545	877	552	889	531	855	381	610	
		8.6	8.5	8.5	8.8	8.7	9.0	8.9	9.1	9.2	
12"	q
F	546	879	556	896	488	786	456	735	436	703	423	680	413	664	405	652	381	610	
		9.1	9.0	9.5	9.8	10.1	10.3	10.5	10.6	10.8	
24"	q
F	424	683	464	746	400	644	312	502	319	514	271	436	282	454	248	400	236	380	
		10.0	9.7	10.3	11.7	11.8	13.0	12.9	14.0	14.7	
36"	q
F	424	683	351	566	299	481	312	502	254	408	210	338	232	373	202	325	199	320	
		10.0	10.8	11.6	11.7	13.2	14.7	14.3	15.5	16.1	
48"	q
F	424	683	351	566	299	481	226	364	254	408	210	338	178	287	155	250	161	260	
		10.0	10.8	11.6	13.5	13.2	14.7	16.3	17.8	18.1	
1
per span	q
F	424	683	351	566	299	481	226	364	179	288	147	237	125	201	108	174	87	139	
		10.0	10.8	11.6	13.5	15.4	17.4	19.3	21.3	25.3	
none	q
F	273	439	218	350	180	289	132	213	104	168	85	137	72	115	62	99	49	79	
		11.5	12.7	14.0	16.6	19.3	22.0	24.7	27.5	33.1	

Table 8.13 - Shear and Flexibility (No. 22 gauge Mini-V-Beam, 32/4):
22ga   Mini-V-Beam   32/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	531	856	533	859	527	848	525	844	523	842	522	840	521	839	521	838	520	837	
		29.7	24.8	21.8	17.8	15.4	13.8	12.7	11.9	10.7	
8"	q
F	465	749	464	748	464	747	440	709	445	716	431	693	436	701	425	685	422	679	
		30.8	26.0	22.8	19.3	16.8	15.5	14.3	13.6	12.5	
12"	q
F	414	666	425	684	388	624	373	601	364	585	357	575	352	567	348	561	343	552	
		31.5	26.6	24.1	20.4	18.3	16.9	15.9	15.2	14.2	
24"	q
F	329	530	367	590	326	525	264	425	276	444	238	384	251	405	225	362	217	349	
		32.8	27.5	25.2	22.9	20.4	20.1	18.7	18.9	18.3	
36"	q
F	329	530	280	451	243	390	264	425	219	353	187	301	209	337	186	299	185	298	
		32.8	29.1	27.1	22.9	22.2	22.3	20.3	20.9	20.0	
48"	q
F	329	530	280	451	243	390	189	305	219	353	187	301	161	259	140	225	149	241	
		32.8	29.1	27.1	25.4	22.2	22.3	22.9	23.8	22.4	
1
per span	q
F	329	530	280	451	243	390	189	305	152	244	125	201	106	171	92	148	72	117	
		32.8	29.1	27.1	25.4	25.4	26.1	27.4	28.9	32.4	
none	q
F	196	316	158	255	130	210	96	154	75	120	61	98	51	82	44	70	34	55	
		35.5	32.5	31.1	30.8	32.2	34.3	36.9	39.7	46.0	

Table 8.14 - Shear and Flexibility (No. 22 gauge Mini-V-Beam, 32/7):
22ga   Mini-V-Beam   32/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	828	1333	831	1339	808	1302	798	1284	791	1273	786	1265	782	1260	780	1255	540	863	
		5.9	5.8	5.9	5.9	5.9	5.9	5.9	5.9	5.9	
8"	q
F	659	1061	650	1046	644	1037	588	947	593	955	561	903	569	915	547	880	538	863	
		6.7	6.8	6.8	7.1	7.1	7.4	7.3	7.5	7.6	
12"	q
F	562	905	573	922	503	809	470	756	449	723	435	700	425	684	417	671	406	653	
		7.2	7.2	7.7	8.0	8.3	8.5	8.7	8.9	9.1	
24"	q
F	437	703	477	768	412	663	321	517	329	529	278	448	290	468	257	413	243	391	
		8.0	7.8	8.4	9.8	9.8	11.0	10.9	11.8	12.5	
36"	q
F	437	703	362	583	308	495	321	517	261	421	217	349	240	386	209	336	205	329	
		8.0	8.8	9.6	9.8	11.1	12.5	12.1	13.2	13.8	
48"	q
F	437	703	362	583	308	495	234	376	261	421	217	349	185	297	161	259	166	267	
		8.0	8.8	9.6	11.3	11.1	12.5	13.9	15.3	15.5	
1
per span	q
F	437	703	362	583	308	495	234	376	185	298	153	246	130	209	113	181	89	144	
		8.0	8.8	9.6	11.3	13.1	14.8	16.6	18.4	22.0	
none	q
F	281	452	225	362	186	300	137	221	108	174	89	143	75	121	64	104	51	82	
		9.4	10.5	11.7	14.1	16.5	18.9	21.4	23.9	28.8	

Table 8.15 - Shear and Flexibility (No. 20 gauge Mini-V-Beam, 32/4):
20ga   Mini-V-Beam   32/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	531	856	533	859	527	848	525	844	523	842	522	840	521	839	521	838	520	837	
		19.9	16.8	15.0	12.5	11.0	10.0	9.3	8.8	8.1	
8"	q
F	465	749	464	748	464	747	440	709	445	716	431	693	436	701	425	685	422	679	
		20.9	17.9	15.9	13.8	12.3	11.5	10.8	10.4	9.7	
12"	q
F	414	666	425	684	388	624	373	601	364	585	357	575	352	567	348	561	343	552	
		21.5	18.5	17.1	14.9	13.6	12.8	12.3	11.8	11.3	
24"	q
F	329	530	367	590	326	525	264	425	276	444	238	384	251	405	225	362	217	349	
		22.7	19.3	18.1	17.1	15.5	15.7	14.8	15.2	15.0	
36"	q
F	329	530	280	451	243	390	264	425	219	353	187	301	209	337	186	299	185	298	
		22.7	20.7	19.8	17.1	17.2	17.8	16.3	17.0	16.6	
48"	q
F	329	530	280	451	243	390	189	305	219	353	187	301	162	260	140	226	149	241	
		22.7	20.7	19.8	19.4	17.2	17.8	18.6	19.7	18.7	
1
per span	q
F	329	530	280	451	243	390	189	305	153	246	126	203	107	172	92	149	72	117	
		22.7	20.7	19.8	19.4	20.1	21.2	22.7	24.3	27.9	
none	q
F	196	316	159	256	131	211	96	155	76	122	62	99	52	83	44	71	34	55	
		25.2	23.8	23.5	24.4	26.3	28.6	31.3	34.2	40.2	

Table 8.16 - Shear and Flexibility (No. 20 gauge Mini-V-Beam, 32/7):
20ga   Mini-V-Beam   32/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	828	1333	831	1339	808	1302	798	1284	791	1273	786	1265	782	1260	780	1255	719	1151	
		4.9	4.9	4.9	5.0	5.0	5.0	5.0	5.0	5.0	
8"	q
F	659	1061	650	1046	644	1037	588	947	593	955	561	903	569	915	547	880	538	866	
		5.7	5.7	5.7	6.1	6.1	6.3	6.3	6.5	6.6	
12"	q
F	562	905	573	922	503	809	470	756	449	723	435	700	425	684	417	671	406	653	
		6.1	6.1	6.6	6.9	7.2	7.4	7.6	7.7	7.9	
24"	q
F	437	703	477	768	412	663	321	517	329	529	278	448	290	468	257	413	243	391	
		6.8	6.7	7.3	8.5	8.6	9.6	9.6	10.4	11.0	
36"	q
F	437	703	362	583	308	495	321	517	261	421	218	351	240	387	209	337	205	329	
		6.8	7.6	8.3	8.5	9.7	11.0	10.7	11.7	12.2	
48"	q
F	437	703	362	583	308	495	234	377	261	421	218	351	186	299	161	260	166	267	
		6.8	7.6	8.3	9.9	9.7	11.0	12.3	13.6	13.8	
1
per span	q
F	437	703	362	583	308	495	234	377	186	299	154	247	131	210	113	182	89	144	
		6.8	7.6	8.3	9.9	11.5	13.1	14.8	16.4	19.7	
none	q
F	281	452	226	364	187	301	138	223	109	175	90	144	76	122	65	105	51	82	
		8.1	9.1	10.2	12.4	14.6	16.9	19.1	21.4	25.9	

Table 8.17 - Shear and Flexibility (No. 18 gauge Mini-V-Beam, 32/4):
18ga   Mini-V-Beam   32/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	531	856	533	859	527	848	525	844	523	842	522	840	521	839	521	838	520	837	
		11.7	10.1	9.2	7.9	7.2	6.7	6.3	6.0	5.7	
8"	q
F	465	749	464	748	464	747	440	709	445	716	431	693	436	701	425	685	422	679	
		12.6	11.1	10.0	9.1	8.3	8.0	7.6	7.5	7.1	
12"	q
F	414	666	425	684	388	624	373	601	364	585	357	575	352	567	348	561	343	552	
		13.2	11.5	11.0	10.0	9.5	9.1	8.9	8.7	8.5	
24"	q
F	329	530	367	590	326	525	264	425	276	444	238	384	251	405	225	362	217	349	
		14.2	12.3	11.9	12.0	11.1	11.7	11.1	11.7	11.8	
36"	q
F	329	530	280	451	243	390	264	425	219	353	187	301	209	337	186	299	185	298	
		14.2	13.5	13.4	12.0	12.6	13.5	12.4	13.2	13.1	
48"	q
F	329	530	280	451	243	390	189	305	219	353	187	301	163	262	141	228	150	242	
		14.2	13.5	13.4	14.0	12.6	13.5	14.5	15.6	15.0	
1
per span	q
F	329	530	280	451	243	390	189	305	153	247	127	204	108	173	93	150	73	118	
		14.2	13.5	13.4	14.0	15.1	16.5	18.0	19.6	23.1	
none	q
F	196	316	160	258	132	213	97	157	77	123	63	101	53	85	45	73	35	56	
		16.4	16.3	16.7	18.4	20.6	23.0	25.6	28.3	33.9	

Table 8.18 - Shear and Flexibility (No. 18 gauge Mini-V-Beam, 32/7):
18ga   Mini-V-Beam   32/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	10' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	828	1333	831	1339	808	1302	798	1284	791	1273	786	1265	782	1260	780	1255	776	1249	
		3.8	3.8	3.9	4.0	4.0	4.0	4.0	4.0	4.1	
8"	q
F	659	1061	650	1046	644	1037	588	947	593	955	561	903	569	915	547	880	538	866	
		4.5	4.6	4.6	4.9	5.0	5.2	5.2	5.3	5.4	
12"	q
F	562	905	573	922	503	809	470	756	449	723	435	700	425	684	417	671	406	653	
		4.9	4.9	5.3	5.7	5.9	6.1	6.3	6.4	6.6	
24"	q
F	437	703	477	768	412	663	321	517	329	529	278	448	290	468	257	413	243	392	
		5.5	5.4	6.0	7.0	7.2	8.1	8.0	8.8	9.3	
36"	q
F	437	703	362	583	308	495	321	517	261	421	219	352	241	388	210	339	205	331	
		5.5	6.2	6.9	7.0	8.2	9.3	9.0	9.9	10.4	
48"	q
F	437	703	362	583	308	495	235	379	261	421	219	352	186	300	162	261	167	269	
		5.5	6.2	6.9	8.3	8.2	9.3	10.4	11.5	11.8	
1
per span	q
F	437	703	362	583	308	495	235	379	187	301	155	249	132	212	114	184	90	145	
		5.5	6.2	6.9	8.3	9.7	11.2	12.6	14.0	16.9	
none	q
F	281	452	227	365	188	302	139	224	110	177	90	146	77	123	66	106	52	83	
		6.6	7.6	8.5	10.5	12.5	14.4	16.4	18.4	22.4	

9.0 Nor-Clad®

Figure 9.1 - Basic Dimensions and Panel Attachment (Nor-Clad):

36/4 Pattern:		
36/8 Pattern:		

Table 9.1 - Section Properties (Nor-Clad):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
29	0.65	0.0139	80	82	0.1912	0.0080	0.15	0.0164	0.0539	
26	0.81	0.0173	80	82	0.2380	0.0100	0.15	0.0204	0.0663	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Distance to Section Inertia	N.A. from Modulus
Bottom	Moment of Distance to Section Inertia	N.A. from Modulus
Bottom	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+	yb	Se+
in4/ft	in	in3/ft	Ie-	yb	Se-
in4/ft	in	in3/ft	I+	I-
in4/ft	in4/ft	
29
26	0.0259
0.0360	0.0080	0.14	0.0147
0.0100	0.15	0.0195	0.0057
0.0097	0.30	0.0149	0.0080	0.0064
0.0100	0.0098	
				0.30	0.0188		

Table 9.2 - Inward (Positive) Uniform Allowable Loads (Nor-Clad):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	

29	
Single Span	ASD, W/Ω
LRFD, φW	199
316	88
140	56
89	39
62	29
46	22
35	17
28	14
22	10
16	
		L/240 L/180
L/120	-
-
-	66
87
-	34
45
-	19
26
39	12
16
24	8
11
16	6
8
12	4
6
8	2
3
5	
	
Double Span	ASD, W/Ω
LRFD, φW	196
296	88
132	57
85	39
59	28
43	22
33	17
26	13
21	9
14	
		L/240 L/180
L/180	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	20
-
-	14
-
-	10
-
-	6
8
8	
	
Triple Span	ASD, W/Ω
LRFD, φW	243
366	110
165	70
106	49
73	36
54	27
41	21
32	18
27	12
19	
		L/240 L/180
L/120	-
-
-	-
-
-	63
-
-	37
49
-	23
31
-	15
21
-	11
14
-	8
11
16	5
6
9	

26	
Single Span	ASD, W/Ω
LRFD, φW	264
418	117
185	75
118	52
82	38
60	29
46	23
37	19
30	13
21	
		L/240 L/180
L/120	-
-
-	82
109
-	42
56
-	24
32
49	15
20
31	10
14
20	7
10
14	5
7
10	3
4
6	
	
Double Span	ASD, W/Ω
LRFD, φW	248
373	111
167	71
107	50
75	36
54	28
42	22
33	17
26	12
18	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	25
-
-	17
-
-	13
17
-	7
10
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	307
462	138
208	89
134	61
93	45
68	34
52	27
41	22
34	15
23	
		L/240 L/180
L/120	-
-
-	-
-
-	79
-
-	46
61
-	29
38
-	19
26
-	14
18
-	10
13
20	6
8
11	

Table 9.3 - Allowable Reactions at Supports (Nor-Clad):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
		ASD (Pn/Ω)	(lbs/ft width)	LRFD (φPn)	(lbs/ft width)	
		1"	1.5"	1"	1.5"	
29	End
Interior	123
162	142
184	188
241	217
273	
26	End
Interior	184
251	211
283	281
373	323
420	

Nor-Clad, 29ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	330
285	524
427	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	12ga
(.1050")	#12
#12	36/8
36/4	330
285	524
427	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	14ga
(.0700")	#12
#12	36/8
36/4	330
278	524
418	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	16ga
(.0590")	#12
#12	36/8
36/4	330
235	524
352	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	18ga
(.0459")	#12
#12	36/8
36/4	330
183	524
274	147
122	233
183	94
94	149
146	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	20ga
(.0354")	#12
#12	36/8
36/4	282
141	422
211	147
94	233
141	94
75	149
113	65
63	103
94	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	22ga
(.0294")	#12
#12	36/8
36/4	234
117	351
175	147
78	233
117	94
62	149
94	65
52	103
78	48
45	74
67	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	330
285	524
427	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	12ga
(.1050")	#12
#12	36/8
36/4	330
285	524
427	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	14ga
(.0700")	#12
#12	36/8
36/4	330
193	524
289	147
129	233
193	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	16ga
(.0590")	#12
#12	36/8
36/4	325
162	487
244	147
108	233
162	94
87	149
130	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	18ga
(.0459")	#12
#12	36/8
36/4	253
126	379
190	147
84	233
126	94
67	149
101	65
56	103
84	48
48	74
72	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	20ga
(.0354")	#12
#12	36/8
36/4	195
97	292
146	130
65	195
97	94
52	149
78	65
43	103
65	48
37	74
56	37
32	50
49	29
29	35
35	23
23	26
26	15
15	15
15	
	22ga
(.0294")	#12
#12	36/8
36/4	162
81	243
121	108
54	162
81	86
43	130
65	65
36	103
54	48
31	74
46	37
27	50
40	29
24	35
35	23
22	26
26	15
15	15
15	

Plywood & OSB	15/32"	#14
#14	36/8
36/4	209
105	283
141	140
70	189
94	94
56	149
75	65
47	103
63	48
40	74
54	37
35	50
47	29
29	35
35	23
23	26
26	15
15	15
15	
	19/32"	#14
#14	36/8
36/4	265
133	358
179	147
88	233
119	94
71	149
96	65
59	103
80	48
48	74
68	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
	23/32"	#14
#14	36/8
36/4	321
161	434
217	147
107	233
145	94
86	149
116	65
65	103
96	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	

Lumber (DFL)	
1" min	#9
#9	36/8
36/4	330
194	523
262	147
129	233
174	94
94	149
140	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	
		#14
#14	36/8
36/4	330
265	524
358	147
147	233
233	94
94	149
149	65
65	103
103	48
48	74
74	37
37	50
50	29
29	35
35	23
23	26
26	15
15	15
15	

Nor-Clad, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	437
355	694
532	194
194	308
308	124
124	197
197	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	12ga
(.1050")	#12
#12	36/8
36/4	437
355	694
532	194
194	308
308	124
124	197
197	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	14ga
(.0700")	#12
#12	36/8
36/4	437
278	694
418	194
186	308
278	124
124	197
197	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	16ga
(.0590")	#12
#12	36/8
36/4	437
235	694
352	194
156	308
235	124
124	197
188	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	18ga
(.0459")	#12
#12	36/8
36/4	365
183	548
274	194
122	308
183	124
97	197
146	86
81	137
122	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	20ga
(.0354")	#12
#12	36/8
36/4	282
141	422
211	188
94	282
141	124
75	197
113	86
63	137
94	63
54	101
80	49
47	76
70	38
38	53
53	31
31	39
39	22
22	22
22	
	22ga
(.0294")	#12
#12	36/8
36/4	234
117	351
175	156
78	234
117	124
62	187
94	86
52	137
78	63
45	101
67	49
39	76
58	38
35	53
52	31
31	39
39	22
22	22
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	437
355	694
532	194
194	308
308	124
124	197
197	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	12ga
(.1050")	#12
#12	36/8
36/4	437
289	694
434	194
193	308
289	124
124	197
197	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	14ga
(.0700")	#12
#12	36/8
36/4	386
193	578
289	194
129	308
193	124
103	197
154	86
86	137
129	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	16ga
(.0590")	#12
#12	36/8
36/4	325
162	487
244	194
108	308
162	124
87	197
130	86
72	137
108	63
62	101
93	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
	18ga
(.0459")	#12
#12	36/8
36/4	253
126	379
190	169
84	253
126	124
67	197
101	86
56	137
84	63
48	101
72	49
42	76
63	38
37	53
53	31
31	39
39	22
22	22
22	
	20ga
(.0354")	#12
#12	36/8
36/4	195
97	292
146	130
65	195
97	104
52	156
78	86
43	130
65	63
37	101
56	49
32	76
49	38
29	53
43	31
26	39
39	22
22	22
22	
	22ga
(.0294")	#12
#12	36/8
36/4	162
81	243
121	108
54	162
81	86
43	130
65	72
36	108
54	62
31	93
46	49
27	76
40	38
24	53
36	31
22	39
32	22
18	22
22	

Plywood & OSB	15/32"	#14
#14	36/8
36/4	209
105	283
141	140
70	189
94	112
56	151
75	86
47	126
63	63
40	101
54	49
35	76
47	38
31	53
42	31
28	39
38	22
22	22
22	
	19/32"	#14
#14	36/8
36/4	265
133	358
179	177
88	239
119	124
71	191
96	86
59	137
80	63
51	101
68	49
44	76
60	38
38	53
53	31
31	39
39	22
22	22
22	
	23/32"	#14
#14	36/8
36/4	321
161	434
217	194
107	289
145	124
86	197
116	86
71	137
96	63
61	101
83	49
49	76
72	38
38	53
53	31
31	39
39	22
22	22
22	

Lumber (DFL)	
1" min	#9
#9	36/8
36/4	388
194	523
262	194
129	308
174	124
103	197
140	86
86	137
116	63
63	101
100	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	
		#14
#14	36/8
36/4	437
265	694
358	194
177	308
238	124
124	197
191	86
86	137
137	63
63	101
101	49
49	76
76	38
38	53
53	31
31	39
39	22
22	22
22	

Table 9.6 - Shear and Flexibility (No. 29 gauge Nor-Clad, 36/4):
29ga  Nor-Clad   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	354	570	351	566	353	568	349	562	343	549	263	420	208	332	168	269	117	187	
		17.1	14.6	13.4	12.9	12.3	12.0	11.7	11.5	11.2	
8"	q
F	321	517	311	500	311	501	312	502	312	502	263	420	208	332	168	269	117	187	
		18.3	16.0	15.0	14.3	13.9	14.0	13.7	13.4	13.4	
12"	q
F	321	517	277	446	286	461	263	423	273	439	255	410	208	332	168	269	117	187	
		18.3	17.1	15.9	16.1	15.3	15.7	15.1	15.5	15.4	
24"	q
F	275	443	218	352	247	398	221	356	199	320	180	289	205	330	168	269	117	187	
		19.5	19.0	17.2	17.6	18.3	19.1	17.6	18.3	19.8	
36"	q
F	275	443	218	352	186	300	161	260	199	320	180	289	164	264	150	242	117	187	
		19.5	19.0	19.5	20.5	18.3	19.1	20.0	21.0	23.0	
48"	q
F	275	443	218	352	186	300	161	260	142	228	126	203	164	264	150	242	117	187	
		19.5	19.0	19.5	20.5	21.6	22.9	20.0	21.0	23.0	
1
per span	q
F	275	443	218	352	186	300	161	260	142	228	126	203	114	183	103	166	85	137	
		19.5	19.0	19.5	20.5	21.6	22.9	24.3	25.7	28.7	
none	q
F	170	273	120	193	97	156	80	129	68	110	59	95	52	84	47	75	38	61	
		22.4	23.3	25.0	27.0	29.2	31.6	34.0	36.5	41.7	

Table 9.7 - Shear and Flexibility (No. 26 gauge Nor-Clad, 36/4):
26ga  Nor-Clad   36/4 Attachment Pattern	Support Screw: #12 HWH  Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	441	709	437	704	439	707	435	700	436	703	366	586	289	463	234	375	163	260	
		12.1	10.7	10.0	9.7	9.4	9.3	9.1	9.0	8.8	
8"	q
F	400	643	387	623	387	624	388	625	388	625	366	586	289	463	234	375	163	260	
		13.1	12.0	11.4	11.1	10.8	11.1	10.9	10.7	10.8	
12"	q
F	400	643	345	555	356	574	327	527	339	546	317	510	289	463	234	375	163	260	
		13.1	12.9	12.2	12.6	12.1	12.5	12.1	12.5	12.5	
24"	q
F	342	551	272	438	308	495	275	443	247	398	224	360	255	411	234	375	163	260	
		14.2	14.6	13.4	14.0	14.8	15.6	14.4	15.1	16.5	
36"	q
F	342	551	272	438	232	373	201	323	247	398	224	360	204	328	187	301	160	257	
		14.2	14.6	15.5	16.6	14.8	15.6	16.5	17.5	19.4	
48"	q
F	342	551	272	438	232	373	201	323	177	284	157	253	204	328	187	301	160	257	
		14.2	14.6	15.5	16.6	17.7	19.0	16.5	17.5	19.4	
1
per span	q
F	342	551	272	438	232	373	201	323	177	284	157	253	141	228	128	207	106	171	
		14.2	14.6	15.5	16.6	17.7	19.0	20.3	21.7	24.5	
none	q
F	211	340	150	241	122	196	100	162	85	138	74	119	65	105	58	94	48	77	
		16.8	18.5	20.3	22.4	24.6	26.8	29.1	31.4	36.1	
Note: Shear Tables 9.6 & 9.7 based on 36/4 attachment pattern.  Values acceptable for use (conservative) for 36/8 attachment pattern.

10.0 Nu-Wave® Corrugated

Figure 10.1 - Basic Dimensions and Panel Attachment (Nu-Wave Corrugated):

32/5 Pattern: (roof / wall)	
	
32/7 Pattern: (roof / wall)	
	
34.7/5 Pattern: (wall)	
	
34.7/7 Pattern: (wall)	

Table 10.1 - Section Properties (Nu-Wave Corrugated):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.94	0.0173	80	82	0.2749	0.0256	0.44	0.0579	0.0579	
24	1.25	0.0232	50	65	0.3682	0.0346	0.44	0.0769	0.0769	
22	1.59	0.0294	50	65	0.4661	0.0415	0.45	0.0964	0.0964	
20	1.91	0.0354	40	55	0.5606	0.0519	0.45	0.1150	0.1150	

Gauge	Effective Section Properties	Uniform Load Only	

Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft

in2	Ie+

in4/ft	yb

in	Se+

in3/ft	Ie-

in4/ft	yb

in	Se-

in3/ft	I+

in4/ft	I-

in4/ft	
26	0.2117	0.0256	0.44	0.0579	0.0256	0.44	0.0579	0.0256	0.0256	
24	0.3369	0.0346	0.45	0.0769	0.0346	0.45	0.0769	0.0346	0.0346	
22	0.4589	0.0415	0.43	0.0964	0.0415	0.43	0.0964	0.0415	0.0415	
20	0.5550	0.0519	0.45	0.1150	0.0519	0.45	0.1150	0.0519	0.0519	

Table 10.2 - Inward (Positive) Uniform Allowable Loads (Nu-Wave Corrugated):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

26	
Single Span	ASD, W/Ω
LRFD, φW	347
550	222
352	154
244	113
180	87
137	55
88	39
61	28
45	22
34	
		L/240 L/180
L/120	210
280
-	107
143
215	62
83
124	39
52
78	26
35
52	13
18
27	8
10
16	5
7
10	3
4
7	
	
Double Span	ASD, W/Ω
LRFD, φW	334
503	217
326	151
227	111
168	85
128	55
83	38
57	28
42	21
32	
		L/240 L/180
L/120	-
-
-	-
-
-	150
-
-	94
-
-	63
84
-	32
43
-	19
25
37	12
16
24	8
11
16	
	
Triple Span	ASD, W/Ω
LRFD, φW	411
619	268
403	188
282	138
208	106
160	69
103	47
71	35
53	27
41	
		L/240
L/180 L/120	396
-
-	203
-
-	117
156
-	74
99
-	50
66
99	25
34
51	15
20
29	9
12
18	6
8
12	

24	
Single Span	ASD, W/Ω
LRFD, φW	384
609	246
390	171
271	125
199	96
152	61
97	43
68	31
50	24
38	
		L/240 L/180
L/120	284
378
-	145
194
-	84
112
168	53
71
106	35
47
71	18
24
36	11
14
21	7
9
13	4
6
9	
	
Double Span	ASD, W/Ω
LRFD, φW	370
556	239
360	167
252	123
186	95
143	60
91	42
64	31
46	23
35	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	85
-
-	44
58
-	25
34
-	16
21
-	11
14
21	
	
Triple Span	ASD, W/Ω
LRFD, φW	455
685	297
446	208
313	154
231	118
177	75
114	52
79	39
58	30
45	
		L/240 L/180
L/120	-
-
-	274
-
-	159
-
-	100
133
-	67
89
-	34
46
69	20
26
40	12
17
25	8
11
17	

22	
Single Span	ASD, W/Ω
LRFD, φW	481
763	308
488	214
339	157
249	120
191	77
122	53
85	39
62	30
48	
		L/240
L/180 L/120	340
454
-	174
232
-	101
134
202	64
85
127	43
57
85	22
29
44	13
17
25	8
11
16	5
7
11	
	
Double Span	ASD, W/Ω
LRFD, φW	463
697	300
452	210
316	154
232	119
179	76
115	53
80	39
59	29
44	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	153
-
-	102
-
-	52
70
-	30
40
-	19
25
38	13
17
26	
	
Triple Span	ASD, W/Ω
LRFD, φW	571
859	371
559	261
392	193
290	148
223	95
143	65
99	48
72	37
55	
		L/240 L/180
L/120	-
-
-	329
-
-	190
254
-	120
160
-	80
107
-	41
55
82	24
32
48	15
20
30	10
13
20	

Table 10.2 (Cont’d) - Inward (Positive) Uniform Allowable Loads (Nu-Wave Corrugated)
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

20	
Single Span	ASD, W/Ω
LRFD, φW	459
728	294
466	204
324	150
238	115
182	73
116	51
81	37
59	29
46	
		L/240 L/180
L/120	425
-
-	218
290
-	126
168
-	79
106
-	53
71
106	27
36
54	16
21
32	10
13
20	7
9
13	
	
Double Span	ASD, W/Ω
LRFD, φW	442
665	286
431	201
302	148
222	114
171	72
109	50
75	37
55	28
42	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	66
-
-	38
-
-	24
32
-	16
21
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	544
819	354
533	248
374	184
276	141
212	91
137	63
95	46
70	35
53	
		L/240
L/180 L/120	-
-
-	-
-
-	238
-
-	150
-
-	100
134
-	51
69
-	30
40
59	19
25
37	13
17
25	

Table 10.3 - Allowable Reactions at Supports (Nu-Wave Corrugated):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
		ASD (Pn/Ω) (lbs/ft width)	LRFD (φPn) (lbs/ft width)	
		1.5"	1.5"	
26	End
Interior	509
711	815
1138	
24	End
Interior	540
879	864
1408	
22	End
Interior	836
1406	1339
2251	
20	End
Interior	1118
2062	1791
3301	

Table 10.4 - Outward (Negative) Uniform Allowable Loads (No. 26 gauge Nu-Wave Corrugated):
Nu-Wave Corrugated, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	430
307	644
460	344
246	516
368	257
205	407
307	189
175	296
263	144
144	198
198	92
92	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	430
307	644
460	344
246	516
368	257
205	407
307	189
175	296
263	144
144	198
198	92
92	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	337
241	506
361	270
193	405
289	225
161	337
241	189
138	289
207	144
120	198
181	92
92	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	284
203	426
305	227
162	341
244	190
135	284
203	162
116	244
174	142
102	198
152	92
81	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	221
158	332
237	177
126	265
190	147
105	221
158	126
90	190
135	111
79	166
118	88
63	101
95	59
53	59
59	37
37	37
37	25
25	25
25	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	171
122	256
183	136
97	205
146	114
81	171
122	97
70	146
104	85
61	128
91	68
49	101
73	57
41	59
59	37
35	37
37	25
25	25
25	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	142
101	213
152	113
81	170
121	94
67	142
101	81
58	121
87	71
51	106
76	57
40	85
61	47
34	59
51	37
29	37
37	25
25	25
25	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	430
307	644
460	344
246	516
368	257
205	407
307	189
175	296
263	144
144	198
198	92
92	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	350
250	525
375	280
200	420
300	234
167	350
250	189
143	296
214	144
125	198
188	92
92	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	234
167	350
250	187
133	280
200	156
111	234
167	133
95	200
143	117
83	175
125	92
67	101
100	59
56	59
59	37
37	37
37	25
25	25
25	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	197
141	295
211	157
112	236
169	131
94	197
141	112
80	169
121	98
70	148
105	79
56	101
84	59
47	59
59	37
37	37
37	25
25	25
25	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	153
109	230
164	123
88	184
131	102
73	153
109	88
63	131
94	77
55	115
82	61
44	92
66	51
36	59
55	37
31	37
37	25
25	25
25	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	118
84	177
127	94
67	142
101	79
56	118
84	67
48	101
72	59
42	89
63	47
34	71
51	39
28	59
42	34
24	37
36	25
21	25
25	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	98
70	147
105	78
56	118
84	65
47	98
70	56
40	84
60	49
35	74
53	39
28	59
42	33
23	49
35	28
20	37
30	25
18	25
25	

Plywood & OSB	15/32"	#14
#14	34.7/7
34.7/5	127
91	171
122	102
73	137
98	85
60	114
82	73
52	98
70	63
45	86
61	51
36	69
49	42
30	57
41	36
26	37
35	25
23	25
25	
	19/32"	#14
#14	34.7/7
34.7/5	161
115	217
155	129
92	174
124	107
77	145
103	92
66	124
89	80
57	108
77	64
46	87
62	54
38	59
52	37
33	37
37	25
25	25
25	
	23/32"	#14
#14	34.7/7
34.7/5	195
139	263
188	156
111	210
150	130
93	175
125	111
79	150
107	97
69	131
94	78
56	101
75	59
46	59
59	37
37	37
37	25
25	25
25	

Lumber (DFL)	
1" min	#9
#9	34.7/7
34.7/5	235
168	317
226	188
134	254
181	157
112	211
151	134
96	181
129	117
84	158
113	92
67	101
91	59
56	59
59	37
37	37
37	25
25	25
25	
		#14
#14	34.7/7
34.7/5	321
229	433
310	257
183	347
248	214
153	289
206	183
131	248
177	144
115	198
155	92
92	101
101	59
59	59
59	37
37	37
37	25
25	25
25	
Note: Load table above based on 34.7” installation coverage. Values acceptable for use (conservative) for 32” installation coverage.

Table 10.5 - Outward (Negative) Uniform Allowable Loads (No. 24 gauge Nu-Wave Corrugated):
Nu-Wave Corrugated, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	457
326	685
489	307
261	487
391	213
213	338
326	157
157	248
248	120
120	190
190	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	457
326	685
489	307
261	487
391	213
213	338
326	157
157	248
248	120
120	190
190	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	337
241	506
361	270
193	405
289	213
161	337
241	157
138	248
207	120
120	190
181	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	284
203	426
305	227
162	341
244	190
135	284
203	157
116	244
174	120
102	190
152	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	221
158	332
237	177
126	265
190	147
105	221
158	126
90	190
135	111
79	166
118	77
63	122
95	53
53	79
79	39
39	50
50	30
30	33
33	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	171
122	256
183	136
97	205
146	114
81	171
122	97
70	146
104	85
61	128
91	68
49	102
73	53
41	79
61	39
35	50
50	30
30	33
33	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	142
101	213
152	113
81	170
121	94
67	142
101	81
58	121
87	71
51	106
76	57
40	85
61	47
34	71
51	39
29	50
43	30
25	33
33	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	450
322	676
483	307
257	487
386	213
213	338
322	157
157	248
248	120
120	190
190	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	350
250	525
375	280
200	420
300	213
167	338
250	157
143	248
214	120
120	190
188	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	234
167	350
250	187
133	280
200	156
111	234
167	133
95	200
143	117
83	175
125	77
67	122
100	53
53	79
79	39
39	50
50	30
30	33
33	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	197
141	295
211	157
112	236
169	131
94	197
141	112
80	169
121	98
70	148
105	77
56	118
84	53
47	79
70	39
39	50
50	30
30	33
33	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	153
109	230
164	123
88	184
131	102
73	153
109	88
63	131
94	77
55	115
82	61
44	92
66	51
36	77
55	39
31	50
47	30
27	33
33	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	118
84	177
127	94
67	142
101	79
56	118
84	67
48	101
72	59
42	89
63	47
34	71
51	39
28	59
42	34
24	50
36	30
21	33
32	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	98
70	147
105	78
56	118
84	65
47	98
70	56
40	84
60	49
35	74
53	39
28	59
42	33
23	49
35	28
20	42
30	25
18	33
26	

Plywood & OSB	15/32"	#14
#14	34.7/7
34.7/5	127
91	171
122	102
73	137
98	85
60	114
82	73
52	98
70	63
45	86
61	51
36	69
49	42
30	57
41	36
26	49
35	30
23	33
31	
	19/32"	#14
#14	34.7/7
34.7/5	161
115	217
155	129
92	174
124	107
77	145
103	92
66	124
89	80
57	108
77	64
46	87
62	53
38	72
52	39
33	50
44	30
29	33
33	
	23/32"	#14
#14	34.7/7
34.7/5	195
139	263
188	156
111	210
150	130
93	175
125	111
79	150
107	97
69	131
94	77
56	105
75	53
46	79
63	39
39	50
50	30
30	33
33	

Lumber (DFL)	
1" min	#9
#9	34.7/7
34.7/5	235
168	317
226	188
134	254
181	157
112	211
151	134
96	181
129	117
84	158
113	77
67	122
91	53
53	79
75	39
39	50
50	30
30	33
33	
		#14
#14	34.7/7
34.7/5	321
229	433
310	257
183	347
248	213
153	289
206	157
131	248
177	120
115	190
155	77
77	122
122	53
53	79
79	39
39	50
50	30
30	33
33	
Note: Load table above based on 34.7” installation coverage. Values acceptable for use (conservative) for 32” installation coverage.

Table 10.6 - Outward (Negative) Uniform Allowable Loads (No. 22 gauge Nu-Wave Corrugated):
Nu-Wave Corrugated, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	579
413	868
620	385
331	611
496	267
267	424
413	196
196	312
312	150
150	238
238	96
96	153
153	67
67	95
95	49
49	60
60	38
38	40
40	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	506
361	759
542	385
289	607
434	267
241	424
361	196
196	312
310	150
150	238
238	96
96	153
153	67
67	95
95	49
49	60
60	38
38	40
40	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	337
241	506
361	270
193	405
289	225
161	337
241	193
138	289
207	150
120	238
181	96
96	153
145	67
67	95
95	49
49	60
60	38
38	40
40	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	284
203	426
305	227
162	341
244	190
135	284
203	162
116	244
174	142
102	213
152	96
81	153
122	67
67	95
95	49
49	60
60	38
38	40
40	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	221
158	332
237	177
126	265
190	147
105	221
158	126
90	190
135	111
79	166
118	88
63	133
95	67
53	95
79	49
45	60
60	38
38	40
40	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	171
122	256
183	136
97	205
146	114
81	171
122	97
70	146
104	85
61	128
91	68
49	102
73	57
41	85
61	49
35	60
52	38
30	40
40	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	142
101	213
152	113
81	170
121	94
67	142
101	81
58	121
87	71
51	106
76	57
40	85
61	47
34	71
51	40
29	60
43	35
25	40
38	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	450
322	676
483	360
257	540
386	267
214	424
322	196
184	312
276	150
150	238
238	96
96	153
153	67
67	95
95	49
49	60
60	38
38	40
40	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	350
250	525
375	280
200	420
300	234
167	350
250	196
143	300
214	150
125	238
188	96
96	153
150	67
67	95
95	49
49	60
60	38
38	40
40	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	234
167	350
250	187
133	280
200	156
111	234
167	133
95	200
143	117
83	175
125	93
67	140
100	67
56	95
83	49
48	60
60	38
38	40
40	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	197
141	295
211	157
112	236
169	131
94	197
141	112
80	169
121	98
70	148
105	79
56	118
84	66
47	95
70	49
40	60
60	38
35	40
40	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	153
109	230
164	123
88	184
131	102
73	153
109	88
63	131
94	77
55	115
82	61
44	92
66	51
36	77
55	44
31	60
47	38
27	40
40	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	118
84	177
127	94
67	142
101	79
56	118
84	67
48	101
72	59
42	89
63	47
34	71
51	39
28	59
42	34
24	51
36	30
21	40
32	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	98
70	147
105	78
56	118
84	65
47	98
70	56
40	84
60	49
35	74
53	39
28	59
42	33
23	49
35	28
20	42
30	25
18	37
26	

Plywood & OSB	15/32"	#14
#14	34.7/7
34.7/5	127
91	171
122	102
73	137
98	85
60	114
82	73
52	98
70	63
45	86
61	51
36	69
49	42
30	57
41	36
26	49
35	32
23	40
31	
	19/32"	#14
#14	34.7/7
34.7/5	161
115	217
155	129
92	174
124	107
77	145
103	92
66	124
89	80
57	108
77	64
46	87
62	54
38	72
52	46
33	60
44	38
29	40
39	
	23/32"	#14
#14	34.7/7
34.7/5	195
139	263
188	156
111	210
150	130
93	175
125	111
79	150
107	97
69	131
94	78
56	105
75	65
46	88
63	49
40	60
54	38
35	40
40	

Lumber (DFL)	
1" min	#9
#9	34.7/7
34.7/5	235
168	317
226	188
134	254
181	157
112	211
151	134
96	181
129	117
84	158
113	94
67	127
91	67
56	95
75	49
48	60
60	38
38	40
40	
		#14
#14	34.7/7
34.7/5	321
229	433
310	257
183	347
248	214
153	289
206	183
131	248
177	150
115	217
155	96
92	153
124	67
67	95
95	49
49	60
60	38
38	40
40	
Note: Load table above based on 34.7” installation coverage. Values acceptable for use (conservative) for 32” installation coverage.

Table 10.7 - Outward (Negative) Uniform Allowable Loads (No. 20 gauge Nu-Wave Corrugated):
Nu-Wave Corrugated, 20ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	574
421	884
632	367
337	582
505	255
255	404
404	187
187	297
297	143
143	228
228	92
92	146
146	64
64	101
101	47
47	74
74	36
36	50
50	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	506
361	759
542	367
289	582
434	255
241	404
361	187
187	297
297	143
143	228
228	92
92	146
146	64
64	101
101	47
47	74
74	36
36	50
50	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	337
241	506
361	270
193	405
289	225
161	337
241	187
138	289
207	143
120	228
181	92
92	146
145	64
64	101
101	47
47	74
74	36
36	50
50	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	284
203	426
305	227
162	341
244	190
135	284
203	162
116	244
174	142
102	213
152	92
81	146
122	64
64	101
101	47
47	74
74	36
36	50
50	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	221
158	332
237	177
126	265
190	147
105	221
158	126
90	190
135	111
79	166
118	88
63	133
95	64
53	101
79	47
45	74
68	36
36	50
50	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	171
122	256
183	136
97	205
146	114
81	171
122	97
70	146
104	85
61	128
91	68
49	102
73	57
41	85
61	47
35	73
52	36
30	50
46	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	142
101	213
152	113
81	170
121	94
67	142
101	81
58	121
87	71
51	106
76	57
40	85
61	47
34	71
51	40
29	61
43	35
25	50
38	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	34.7/7
34.7/5	450
322	676
483	360
257	540
386	255
214	404
322	187
184	297
276	143
143	228
228	92
92	146
146	64
64	101
101	47
47	74
74	36
36	50
50	
	12ga
(.1050")	#12
#12	34.7/7
34.7/5	350
250	525
375	280
200	420
300	234
167	350
250	187
143	297
214	143
125	228
188	92
92	146
146	64
64	101
101	47
47	74
74	36
36	50
50	
	14ga
(.0700")	#12
#12	34.7/7
34.7/5	234
167	350
250	187
133	280
200	156
111	234
167	133
95	200
143	117
83	175
125	92
67	140
100	64
56	101
83	47
47	74
71	36
36	50
50	
	16ga
(.0590")	#12
#12	34.7/7
34.7/5	197
141	295
211	157
112	236
169	131
94	197
141	112
80	169
121	98
70	148
105	79
56	118
84	64
47	98
70	47
40	74
60	36
35	50
50	
	18ga
(.0459")	#12
#12	34.7/7
34.7/5	153
109	230
164	123
88	184
131	102
73	153
109	88
63	131
94	77
55	115
82	61
44	92
66	51
36	77
55	44
31	66
47	36
27	50
41	
	20ga
(.0354")	#12
#12	34.7/7
34.7/5	118
84	177
127	94
67	142
101	79
56	118
84	67
48	101
72	59
42	89
63	47
34	71
51	39
28	59
42	34
24	51
36	30
21	44
32	
	22ga
(.0294")	#12
#12	34.7/7
34.7/5	98
70	147
105	78
56	118
84	65
47	98
70	56
40	84
60	49
35	74
53	39
28	59
42	33
23	49
35	28
20	42
30	25
18	37
26	

Plywood & OSB	15/32"	#14
#14	34.7/7
34.7/5	127
91	171
122	102
73	137
98	85
60	114
82	73
52	98
70	63
45	86
61	51
36	69
49	42
30	57
41	36
26	49
35	32
23	43
31	
	19/32"	#14
#14	34.7/7
34.7/5	161
115	217
155	129
92	174
124	107
77	145
103	92
66	124
89	80
57	108
77	64
46	87
62	54
38	72
52	46
33	62
44	36
29	50
39	
	23/32"	#14
#14	34.7/7
34.7/5	195
139	263
188	156
111	210
150	130
93	175
125	111
79	150
107	97
69	131
94	78
56	105
75	64
46	88
63	47
40	74
54	36
35	50
47	

Lumber (DFL)	
1" min	#9
#9	34.7/7
34.7/5	235
168	317
226	188
134	254
181	157
112	211
151	134
96	181
129	117
84	158
113	92
67	127
91	64
56	101
75	47
47	74
65	36
36	50
50	
		#14
#14	34.7/7
34.7/5	321
229	433
310	257
183	347
248	214
153	289
206	183
131	248
177	143
115	217
155	92
92	146
124	64
64	101
101	47
47	74
74	36
36	50
50	
Note: Load table above based on 34.7” installation coverage. Values acceptable for use (conservative) for 32” installation coverage.

Table 10.8 - Shear and Flexibility (No. 26 gauge Nu-Wave Corrugated, 34.7/5):
26ga  Nu-Wave   34.67/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	555	894	556	895	548	882	549	884	543	875	453	725	315	503	231	370	177	283	
		67.7	55.8	48.1	42.5	38.4	32.5	28.6	25.8	23.7	
8"	q
F	491	790	485	781	482	775	479	771	453	729	453	725	315	503	231	370	177	283	
		68.7	57.0	49.2	43.7	39.9	34.0	30.4	27.6	25.7	
12"	q
F	446	717	449	722	409	659	418	673	388	624	373	601	315	503	231	370	177	283	
		69.4	57.6	50.4	44.7	41.1	35.6	31.9	29.3	27.4	
24"	q
F	376	606	397	639	355	571	319	513	288	464	292	469	252	406	231	370	177	283	
		70.4	58.4	51.4	46.6	43.3	37.5	35.0	32.1	31.2	
36"	q
F	376	606	324	522	283	455	319	513	288	464	241	387	205	331	221	356	177	283	
		70.4	59.7	53.0	46.6	43.3	39.2	37.0	33.6	33.0	
48"	q
F	376	606	324	522	283	455	250	402	223	359	241	387	205	331	179	288	157	253	
		70.4	59.7	53.0	48.5	45.4	39.2	37.0	35.9	35.6	
1
per span	q
F	376	606	324	522	283	455	250	402	223	359	183	294	153	247	130	210	113	182	
		70.4	59.7	53.0	48.5	45.4	41.8	40.1	39.6	39.8	
none	q
F	271	437	225	363	192	309	167	268	145	234	115	185	95	152	80	129	69	112	
		72.3	62.1	55.8	51.8	49.2	46.5	45.8	46.2	47.4	

Table 10.9 - Shear and Flexibility (No. 26 gauge Nu-Wave Corrugated, 34.7/7):
26ga  Nu-Wave   34.67/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	733	1180	732	1178	714	1150	716	1153	703	1132	453	725	315	503	231	370	177	283	
		37.7	31.8	28.1	25.3	23.3	20.5	18.6	17.2	16.2	
8"	q
F	622	1001	608	979	598	963	591	952	549	884	453	725	315	503	231	370	177	283	
		38.5	32.8	29.0	26.3	24.6	21.8	20.2	18.8	18.0	
12"	q
F	556	895	553	891	494	795	501	807	458	737	434	699	315	503	231	370	177	283	
		39.0	33.2	29.9	27.1	25.6	23.1	21.5	20.3	19.5	
24"	q
F	467	751	483	778	424	683	376	606	337	542	335	539	286	460	231	370	177	283	
		39.7	33.8	30.6	28.6	27.2	24.6	23.9	22.5	22.6	
36"	q
F	467	751	395	637	341	549	376	606	337	542	277	447	235	378	231	370	177	283	
		39.7	34.7	31.7	28.6	27.2	25.8	25.3	23.8	24.0	
48"	q
F	467	751	395	637	341	549	299	481	265	427	277	447	235	378	203	327	177	283	
		39.7	34.7	31.7	29.8	28.7	25.8	25.3	25.4	25.9	
1
per span	q
F	467	751	395	637	341	549	299	481	265	427	216	348	179	289	153	246	133	214	
		39.7	34.7	31.7	29.8	28.7	27.6	27.5	27.9	28.7	
none	q
F	349	561	288	463	244	393	212	341	185	297	146	236	121	195	103	165	89	143	
		40.8	36.1	33.4	31.8	30.9	30.4	30.9	31.9	33.3	

Table 10.10 - Shear and Flexibility (No. 24 gauge Nu-Wave Corrugated, 34.7/5):
24ga  Nu-Wave   34.67/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	590	950	591	951	582	937	584	940	577	930	574	925	491	786	361	578	276	442	
		34.9	29.3	25.6	22.9	21.0	18.2	16.4	15.0	14.0	
8"	q
F	522	840	516	831	512	824	509	819	482	775	483	778	465	748	361	578	276	442	
		35.8	30.3	26.6	24.0	22.3	19.5	17.9	16.6	15.8	
12"	q
F	474	763	477	768	435	701	444	715	412	664	397	639	386	621	361	578	276	442	
		36.4	30.8	27.6	24.8	23.3	20.8	19.2	18.1	17.2	
24"	q
F	400	644	422	679	377	607	339	545	306	493	310	499	268	431	276	445	247	398	
		37.3	31.5	28.5	26.5	25.3	22.5	21.9	20.4	20.5	
36"	q
F	400	644	345	555	300	484	339	545	306	493	256	412	218	352	235	378	209	336	
		37.3	32.6	29.8	26.5	25.3	24.0	23.6	21.8	22.0	
48"	q
F	400	644	345	555	300	484	265	427	237	381	256	412	218	352	190	306	168	270	
		37.3	32.6	29.8	28.1	27.1	24.0	23.6	23.8	24.3	
1
per span	q
F	400	644	345	555	300	484	265	427	237	381	194	313	164	264	139	225	121	195	
		37.3	32.6	29.8	28.1	27.1	26.2	26.3	26.9	27.9	
none	q
F	288	464	239	385	204	328	177	285	155	250	123	198	101	163	86	139	75	120	
		38.9	34.7	32.3	31.0	30.3	30.3	31.2	32.7	34.5	

Table 10.11 - Shear and Flexibility (No. 24 gauge Nu-Wave Corrugated, 34.7/7):
24ga  Nu-Wave   34.67/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	779	1254	778	1253	759	1222	761	1226	747	1203	708	1132	491	786	361	578	276	442	
		20.5	17.7	16.0	14.6	13.7	12.4	11.5	10.9	10.4	
8"	q
F	661	1064	646	1041	636	1024	628	1012	584	940	582	938	491	786	361	578	276	442	
		21.2	18.5	16.8	15.5	14.9	13.5	12.9	12.2	12.0	
12"	q
F	591	951	588	947	525	845	533	858	486	783	461	743	444	714	361	578	276	442	
		21.6	18.9	17.6	16.2	15.7	14.6	14.0	13.6	13.2	
24"	q
F	496	799	514	827	451	726	400	644	358	577	356	573	304	489	310	499	275	442	
		22.2	19.4	18.2	17.5	17.1	16.0	16.1	15.5	15.9	
36"	q
F	496	799	420	677	362	583	400	644	358	577	295	475	250	402	264	425	234	376	
		22.2	20.2	19.1	17.5	17.1	17.0	17.4	16.5	17.1	
48"	q
F	496	799	420	677	362	583	317	511	282	454	295	475	250	402	216	348	189	304	
		22.2	20.2	19.1	18.5	18.3	17.0	17.4	18.0	18.8	
1
per span	q
F	496	799	420	677	362	583	317	511	282	454	230	370	192	309	164	263	142	229	
		22.2	20.2	19.1	18.5	18.3	18.5	19.2	20.1	21.2	
none	q
F	371	597	306	493	259	418	225	362	197	317	157	252	129	208	110	177	96	154	
		23.2	21.4	20.6	20.3	20.3	21.0	22.1	23.6	25.2	

Table 10.12 - Shear and Flexibility (No. 22 gauge Nu-Wave Corrugated, 34.7/5):
22ga  Nu-Wave   34.67/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	608	978	608	979	599	965	601	968	594	957	591	952	589	948	494	791	379	606	
		21.0	17.9	15.9	14.4	13.4	11.9	10.9	10.1	9.6	
8"	q
F	537	865	531	855	527	848	524	843	496	798	497	801	478	770	482	776	379	606	
		21.8	18.8	16.8	15.4	14.6	13.0	12.3	11.5	11.1	
12"	q
F	488	785	491	790	448	721	457	736	424	683	409	658	397	640	389	626	379	606	
		22.3	19.2	17.7	16.1	15.5	14.2	13.4	12.8	12.4	
24"	q
F	412	663	434	699	388	625	349	561	315	508	319	514	276	444	284	458	254	410	
		23.1	19.9	18.4	17.6	17.2	15.7	15.8	14.9	15.3	
36"	q
F	412	663	355	571	309	498	349	561	315	508	263	424	225	362	242	389	215	346	
		23.1	20.9	19.6	17.6	17.2	17.0	17.3	16.2	16.7	
48"	q
F	412	663	355	571	309	498	273	440	244	393	263	424	225	362	196	315	173	278	
		23.1	20.9	19.6	19.0	18.8	17.0	17.3	17.9	18.7	
1
per span	q
F	412	663	355	571	309	498	273	440	244	393	200	322	169	272	144	232	126	202	
		23.1	20.9	19.6	19.0	18.8	19.0	19.7	20.7	21.9	
none	q
F	297	478	246	397	210	338	182	293	160	258	127	205	105	169	89	144	77	125	
		24.6	22.7	21.8	21.6	21.7	22.6	24.1	25.8	27.7	

Table 10.13 - Shear and Flexibility (No. 22 gauge Nu-Wave Corrugated, 34.7/7):
22ga  Nu-Wave   34.67/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	802	1291	801	1289	781	1258	784	1262	769	1239	762	1226	673	1077	494	791	379	606	
		13.0	11.4	10.5	9.8	9.3	8.6	8.2	7.8	7.6	
8"	q
F	680	1095	665	1071	655	1054	647	1041	601	968	599	965	568	915	494	791	379	606	
		13.6	12.2	11.3	10.6	10.4	9.7	9.4	9.0	9.0	
12"	q
F	608	979	605	975	541	870	549	883	501	806	475	765	457	736	443	714	379	606	
		14.0	12.5	12.0	11.2	11.1	10.6	10.4	10.2	10.1	
24"	q
F	511	822	529	852	464	747	412	663	369	594	366	589	313	503	319	513	283	455	
		14.5	13.0	12.5	12.3	12.4	11.8	12.3	11.9	12.5	
36"	q
F	511	822	433	697	373	601	412	663	369	594	304	489	257	414	272	438	240	387	
		14.5	13.6	13.3	12.3	12.4	12.7	13.4	12.8	13.5	
48"	q
F	511	822	433	697	373	601	327	526	290	467	304	489	257	414	223	359	195	314	
		14.5	13.6	13.3	13.3	13.4	12.7	13.4	14.1	15.0	
1
per span	q
F	511	822	433	697	373	601	327	526	290	467	236	380	198	319	169	272	147	237	
		14.5	13.6	13.3	13.3	13.4	14.1	15.0	16.0	17.2	
none	q
F	382	614	315	507	267	430	232	373	204	328	162	261	134	216	114	184	99	160	
		15.4	14.7	14.6	14.8	15.2	16.3	17.6	19.1	20.7	

Table 10.14 - Shear and Flexibility (No. 20 gauge Nu-Wave Corrugated, 34.7/5):
20ga  Nu-Wave   34.67/5 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	608	978	608	979	599	965	601	968	594	957	591	952	589	948	587	946	514	823	
		14.4	12.4	11.2	10.3	9.7	8.7	8.1	7.7	7.3	
8"	q
F	537	865	531	855	527	848	524	843	496	798	497	801	478	770	482	776	469	755	
		15.1	13.3	12.0	11.1	10.8	9.8	9.4	8.9	8.7	
12"	q
F	488	785	491	790	448	721	457	736	424	683	409	658	397	640	389	626	383	616	
		15.6	13.6	12.8	11.9	11.6	10.9	10.4	10.1	9.9	
24"	q
F	412	663	434	699	388	625	349	561	315	508	319	514	276	444	284	458	254	410	
		16.3	14.2	13.5	13.2	13.1	12.2	12.6	12.0	12.5	
36"	q
F	412	663	355	571	309	498	349	561	315	508	263	424	225	362	242	389	215	346	
		16.3	15.1	14.6	13.2	13.1	13.4	14.0	13.1	13.8	
48"	q
F	412	663	355	571	309	498	273	440	244	393	263	424	225	362	196	315	173	278	
		16.3	15.1	14.6	14.5	14.6	13.4	14.0	14.7	15.6	
1
per span	q
F	412	663	355	571	309	498	273	440	244	393	200	322	169	272	145	233	126	203	
		16.3	15.1	14.6	14.5	14.6	15.2	16.2	17.3	18.6	
none	q
F	297	478	246	397	210	338	182	293	161	259	128	206	106	170	90	145	78	125	
		17.6	16.8	16.6	16.8	17.2	18.5	20.1	21.9	23.9	

Table 10.15 - Shear and Flexibility (No. 20 gauge Nu-Wave Corrugated, 34.7/7):
20ga  Nu-Wave   34.67/7 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	802	1291	801	1289	781	1258	784	1262	769	1239	762	1226	756	1217	672	1075	514	823	
		9.3	8.3	7.8	7.4	7.1	6.7	6.4	6.2	6.0	
8"	q
F	680	1095	665	1071	655	1054	647	1041	601	968	599	965	568	915	572	921	514	823	
		9.9	9.0	8.5	8.1	8.0	7.6	7.5	7.3	7.3	
12"	q
F	608	979	605	975	541	870	549	883	501	806	475	765	457	736	443	714	433	697	
		10.2	9.3	9.1	8.7	8.7	8.5	8.4	8.4	8.3	
24"	q
F	511	822	529	852	464	747	412	663	369	594	366	589	313	503	319	513	283	455	
		10.7	9.7	9.6	9.7	9.8	9.6	10.1	9.9	10.5	
36"	q
F	511	822	433	697	373	601	412	663	369	594	304	489	257	414	272	438	240	387	
		10.7	10.4	10.4	9.7	9.8	10.4	11.1	10.8	11.5	
48"	q
F	511	822	433	697	373	601	327	526	290	467	304	489	257	414	223	359	196	315	
		10.7	10.4	10.4	10.5	10.8	10.4	11.1	11.9	12.8	
1
per span	q
F	511	822	433	697	373	601	327	526	290	467	236	380	199	320	169	273	148	238	
		10.7	10.4	10.4	10.5	10.8	11.6	12.6	13.7	14.8	
none	q
F	382	614	315	507	267	430	232	373	204	329	162	261	134	216	115	184	100	160	
		11.5	11.4	11.6	11.9	12.4	13.6	15.0	16.5	18.0	

11.0 PBR

Figure 11.1 - Basic Dimensions and Panel Attachment (PBR):

36/3 Pattern:		
36/6 Pattern:		

Table 11.1 - Section Properties (PBR):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.85	0.0173	80	82	0.2495	0.0483	0.33	0.0516	0.1479	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0418	0.0453	0.28	0.0400	0.0350	0.58	0.0457	0.0463	0.0394	

Table 11.2 - Inward (Positive) Uniform Allowable Loads (PBR):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

26	
Single Span	ASD, W/Ω
LRFD, φW	240
380	153
243	107
169	78
124	60
95	38
61	27
42	20
31	15
24	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	71
-
-	47
-
-	24
32
-	14
19
-	9
12
18	6
8
12	
	
Double Span	ASD, W/Ω
LRFD, φW	252
380	166
250	117
176	86
130	66
100	43
64	29
45	21
33	17
25	
		L/240 L/180
L/180	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	14
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	307
462	203
306	144
217	107
161	82
124	53
80	38
56	27
41	21
31	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	46
-
-	27
35
-	17
22
-	11
15
-	

Table 11.3 - Allowable Reactions at Supports (PBR):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	126
190	145
214	161
235	187
269	193
283	222
319	246
349	286
400	

Table 11.4 - Outward (Negative) Uniform Allowable Loads (No. 26 gauge PBR):
PBR, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	256
142	406
213	178
118	282
177	130
101	207
152	100
89	158
133	64
64	101
101	44
44	70
70	33
33	52
52	25
25	38
38	
	12ga
(.1050")	#12
#12	36/6
36/3	355
177	532
266	256
142	406
213	178
118	282
177	130
101	207
152	100
89	158
133	64
64	101
101	44
44	70
70	33
33	52
52	25
25	38
38	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	178
93	278
139	130
80	207
119	100
70	158
104	64
56	101
84	44
44	70
70	33
33	52
52	25
25	38
38	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	130
67	201
101	100
59	158
88	64
47	101
70	44
39	70
59	33
33	52
50	25
25	38
38	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	64
37	101
55	44
30	70
46	33
26	52
39	25
23	38
34	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	84
42	44
23	70
35	33
20	52
30	25
18	38
26	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	25
15	38
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	256
142	406
213	178
118	282
177	130
101	207
152	100
89	158
133	64
64	101
101	44
44	70
70	33
33	52
52	25
25	38
38	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	178
96	282
145	130
83	207
124	100
72	158
108	64
58	101
87	44
44	70
70	33
33	52
52	25
25	38
38	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	64
39	101
58	44
32	70
48	33
28	52
41	25
24	38
36	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	64
32	97
49	44
27	70
41	33
23	52
35	25
20	38
30	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	63
32	33
18	52
27	25
16	38
24	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	25
13	35
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	44
22	60
30	33
19	51
26	25
17	38
22	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	64
32	87
43	44
27	70
36	33
23	52
31	25
20	38
27	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	97
48	131
65	64
39	101
52	44
32	70
44	33
28	52
37	25
24	38
33	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	130
76	204
102	100
66	158
89	64
53	101
72	44
44	70
60	33
33	52
51	25
25	38
38	

Table 11.5 - Shear and Flexibility (No. 26 gauge PBR, 36/3):
26ga  PBR   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	337	542	338	544	336	541	337	542	335	540	335	539	335	539	335	539	296	474	
		18.2	16.1	14.9	13.8	13.2	12.1	11.5	11.0	10.6	
8"	q
F	309	497	310	499	311	500	311	501	301	485	305	490	299	481	301	485	296	474	
		19.8	17.7	16.3	15.3	15.1	13.9	13.6	13.0	12.8	
12"	q
F	281	453	291	468	272	438	281	453	267	430	264	425	261	421	260	418	258	416	
		20.9	18.6	18.1	16.7	16.7	16.0	15.5	15.1	14.8	
24"	q
F	225	363	257	413	234	376	213	343	195	314	208	335	183	295	195	314	177	285	
		23.1	20.0	19.8	20.0	20.4	18.9	20.0	18.9	20.0	
36"	q
F	225	363	195	314	171	275	213	343	195	314	166	267	143	230	163	263	147	236	
		23.1	22.7	23.1	20.0	20.4	21.8	23.5	21.3	22.8	
48"	q
F	225	363	195	314	171	275	151	244	135	218	166	267	143	230	125	201	109	175	
		23.1	22.7	23.1	23.8	24.8	21.8	23.5	25.3	27.4	
1
per span	q
F	225	363	195	314	171	275	151	244	135	218	108	174	89	143	75	120	65	104	
		23.1	22.7	23.1	23.8	24.8	27.3	30.0	33.0	36.1	
none	q
F	109	175	85	137	69	112	58	93	50	80	38	61	30	48	24	39	21	33	
		29.0	30.2	32.0	34.2	36.7	42.1	47.8	53.8	59.9	

Table 11.6 - Shear and Flexibility (No. 26 gauge PBR, 36/6):
26ga  PBR   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	617	994	620	998	608	979	612	985	603	971	600	966	527	843	387	619	296	474	
		18.0	15.9	14.6	13.6	13.0	12.0	11.3	10.9	10.5	
8"	q
F	517	832	513	826	511	822	509	819	475	765	480	773	459	739	387	619	296	474	
		19.0	17.0	15.7	14.8	14.5	13.5	13.1	12.6	12.5	
12"	q
F	451	726	461	742	412	664	426	687	390	629	377	606	367	591	360	579	296	474	
		19.6	17.6	16.9	15.8	15.6	15.0	14.6	14.3	14.1	
24"	q
F	355	572	391	629	342	551	303	488	271	436	280	451	236	380	250	402	217	350	
		20.7	18.4	17.9	17.7	17.8	16.9	17.6	17.0	17.8	
36"	q
F	355	572	298	480	256	411	303	488	271	436	216	348	177	285	199	321	173	279	
		20.7	19.7	19.4	17.7	17.8	18.5	19.6	18.5	19.6	
48"	q
F	355	572	298	480	256	411	217	349	187	301	216	348	177	285	149	240	129	208	
		20.7	19.7	19.4	19.5	19.9	18.5	19.6	20.8	22.2	
1
per span	q
F	355	572	298	480	256	411	217	349	187	301	146	235	119	191	99	159	85	137	
		20.7	19.7	19.4	19.5	19.9	21.1	22.7	24.5	26.3	
none	q
F	217	350	170	274	139	223	116	187	99	160	76	122	60	97	49	79	41	67	
		22.6	22.1	22.3	22.9	23.8	25.9	28.5	31.2	34.0	

12.0 Strata Rib®

Figure 12.1 - Basic Dimensions and Panel Attachment (Strata Rib):

36/3 Pattern:		
36/6 Pattern:		

Table 12.1 - Section Properties (Strata Rib):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
29	0.65	0.0139	80	82	0.1914	0.0103	0.16	0.0170	0.0664	
26	0.81	0.0173	80	82	0.2382	0.0130	0.16	0.0211	0.0817	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
29	0.0285	0.0103	0.16	0.0170	0.0070	0.34	0.0144	0.0103	0.0081	
26	0.0379	0.0130	0.16	0.0211	0.0090	0.32	0.0181	0.0130	0.0103	

Table 12.2 - Inward (Positive) Uniform Allowable Loads (Strata Rib):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	

29	
Single Span	ASD, W/Ω
LRFD, φW	230
365	102
162	65
103	45
72	33
53	25
40	20
32	16
26	11
18	
		L/240 L/180
L/120	-
-
-	85
-
-	43
58
-	25
33
-	16
21
32	11
14
21	7
10
15	5
7
11	3
4
6	
	
Double Span	ASD, W/Ω
LRFD, φW	185
279	84
126	54
81	38
57	28
42	21
32	17
25	13
20	9
13	
		L/240 L/180
L/180	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	8
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	227
342	104
157	67
101	47
70	35
52	26
39	20
31	17
26	12
18	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	30
-
-	20
-
-	14
19
-	10
14
-	6
8
-	

26	
Single Span	ASD, W/Ω
LRFD, φW	285
453	126
200	81
128	56
89	41
65	32
50	25
40	20
32	14
22	
		L/240 L/180
L/120	-
-
-	107
-
-	55
73
-	32
42
-	20
27
40	13
18
27	9
12
19	7
9
14	4
5
8	
	
Double Span	ASD, W/Ω
LRFD, φW	233
350	105
159	68
102	47
71	34
52	27
40	21
32	17
26	12
18	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	16
-
-	10
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	285
429	131
197	85
128	59
89	43
65	33
50	26
40	21
32	15
23	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	38
-
-	25
-
-	18
24
-	13
17
-	7
10
-	

Table 12.3 - Allowable Reactions at Supports (Strata Rib):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
		ASD (Pn/Ω) (lbs/ft width)	LRFD (φPn) (lbs/ft width)	
		1"	1.5"	2"	1"	1.5"	2"	
29	End	131	151	168	200	231	257	
	Interior	187	212	233	278	315	346	
26	End	196	224	249	299	343	380	
	Interior	285	321	351	424	478	523	

Strata Rib, 29ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	382
285	606
427	170
170	269
269	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	12ga
(.1050")	#12
#12	36/8
36/4	382
285	606
427	170
170	269
269	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	14ga
(.0700")	#12
#12	36/8
36/4	382
278	606
418	170
170	269
269	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	16ga
(.0590")	#12
#12	36/8
36/4	382
235	606
352	170
156	269
235	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	18ga
(.0459")	#12
#12	36/8
36/4	365
183	548
274	170
122	269
183	109
97	172
146	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	20ga
(.0354")	#12
#12	36/8
36/4	282
141	422
211	170
94	269
141	109
75	172
113	75
63	120
94	55
54	88
80	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	22ga
(.0294")	#12
#12	36/8
36/4	234
117	351
175	156
78	234
117	109
62	172
94	75
52	120
78	55
45	88
67	42
39	63
58	34
34	44
44	27
27	32
32	19
19	19
19	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	382
285	606
427	170
170	269
269	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	12ga
(.1050")	#12
#12	36/8
36/4	382
285	606
427	170
170	269
269	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	14ga
(.0700")	#12
#12	36/8
36/4	382
193	578
289	170
129	269
193	109
103	172
154	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	16ga
(.0590")	#12
#12	36/8
36/4	325
162	487
244	170
108	269
162	109
87	172
130	75
72	120
108	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	18ga
(.0459")	#12
#12	36/8
36/4	253
126	379
190	169
84	253
126	109
67	172
101	75
56	120
84	55
48	88
72	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
	20ga
(.0354")	#12
#12	36/8
36/4	195
97	292
146	130
65	195
97	104
52	156
78	75
43	120
65	55
37	88
56	42
32	63
49	34
29	44
43	27
26	32
32	19
19	19
19	
	22ga
(.0294")	#12
#12	36/8
36/4	162
81	243
121	108
54	162
81	86
43	130
65	72
36	108
54	55
31	88
46	42
27	63
40	34
24	44
36	27
22	32
32	19
18	19
19	

Plywood & OSB	15/32"	#14
#14	36/8
36/4	209
105	283
141	140
70	189
94	109
56	151
75	75
47	120
63	55
40	88
54	42
35	63
47	34
31	44
42	27
27	32
32	19
19	19
19	
	19/32"	#14
#14	36/8
36/4	265
133	358
179	170
88	239
119	109
71	172
96	75
59	120
80	55
51	88
68	42
42	63
60	34
34	44
44	27
27	32
32	19
19	19
19	
	23/32"	#14
#14	36/8
36/4	321
161	434
217	170
107	269
145	109
86	172
116	75
71	120
96	55
55	88
83	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	

Lumber (DFL)	
1" min	#9
#9	36/8
36/4	382
194	523
262	170
129	269
174	109
103	172
140	75
75	120
116	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	
		#14
#14	36/8
36/4	382
265	606
358	170
170	269
238	109
109	172
172	75
75	120
120	55
55	88
88	42
42	63
63	34
34	44
44	27
27	32
32	19
19	19
19	

Strata Rib, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	473
355	751
532	210
210	334
334	135
135	213
213	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	12ga
(.1050")	#12
#12	36/8
36/4	473
355	751
532	210
210	334
334	135
135	213
213	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	14ga
(.0700")	#12
#12	36/8
36/4	473
278	751
418	210
186	334
278	135
135	213
213	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	16ga
(.0590")	#12
#12	36/8
36/4	469
235	704
352	210
156	334
235	135
125	213
188	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	18ga
(.0459")	#12
#12	36/8
36/4	365
183	548
274	210
122	334
183	135
97	213
146	93
81	148
122	69
69	109
104	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	20ga
(.0354")	#12
#12	36/8
36/4	282
141	422
211	188
94	282
141	135
75	213
113	93
63	148
94	69
54	109
80	53
47	80
70	42
42	56
56	34
34	41
41	23
23	24
24	
	22ga
(.0294")	#12
#12	36/8
36/4	234
117	351
175	156
78	234
117	125
62	187
94	93
52	148
78	69
45	109
67	53
39	80
58	42
35	56
52	34
31	41
41	23
23	24
24	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/8
36/4	473
355	751
532	210
210	334
334	135
135	213
213	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	12ga
(.1050")	#12
#12	36/8
36/4	473
289	751
434	210
193	334
289	135
135	213
213	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	14ga
(.0700")	#12
#12	36/8
36/4	386
193	578
289	210
129	334
193	135
103	213
154	93
86	148
129	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	16ga
(.0590")	#12
#12	36/8
36/4	325
162	487
244	210
108	325
162	135
87	213
130	93
72	148
108	69
62	109
93	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
	18ga
(.0459")	#12
#12	36/8
36/4	253
126	379
190	169
84	253
126	135
67	202
101	93
56	148
84	69
48	109
72	53
42	80
63	42
37	56
56	34
34	41
41	23
23	24
24	
	20ga
(.0354")	#12
#12	36/8
36/4	195
97	292
146	130
65	195
97	104
52	156
78	87
43	130
65	69
37	109
56	53
32	80
49	42
29	56
43	34
26	41
39	23
22	24
24	
	22ga
(.0294")	#12
#12	36/8
36/4	162
81	243
121	108
54	162
81	86
43	130
65	72
36	108
54	62
31	93
46	53
27	80
40	42
24	56
36	34
22	41
32	23
18	24
24	

Plywood & OSB	15/32"	#14
#14	36/8
36/4	209
105	283
141	140
70	189
94	112
56	151
75	93
47	126
63	69
40	108
54	53
35	80
47	42
31	56
42	34
28	41
38	23
23	24
24	
	19/32"	#14
#14	36/8
36/4	265
133	358
179	177
88	239
119	135
71	191
96	93
59	148
80	69
51	109
68	53
44	80
60	42
39	56
53	34
34	41
41	23
23	24
24	
	23/32"	#14
#14	36/8
36/4	321
161	434
217	210
107	289
145	135
86	213
116	93
71	148
96	69
61	109
83	53
53	80
72	42
42	56
56	34
34	41
41	23
23	24
24	

Lumber (DFL)	
1" min	#9
#9	36/8
36/4	388
194	523
262	210
129	334
174	135
103	213
140	93
86	148
116	69
69	109
100	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	
		#14
#14	36/8
36/4	473
265	715
358	210
177	334
238	135
135	213
191	93
93	148
148	69
69	109
109	53
53	80
80	42
42	56
56	34
34	41
41	23
23	24
24	

Table 12.6 - Shear and Flexibility (No. 29 gauge Strata Rib, 36/4):
29ga   Strata Rib   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	354	570	351	566	353	568	349	562	351	564	318	509	252	403	204	326	142	226	
		18.1	15.2	14.0	13.3	12.7	12.4	12.0	11.8	11.4	
8"	q
F	321	517	311	500	311	501	312	502	312	502	298	480	252	403	204	326	142	226	
		19.3	16.7	15.6	14.8	14.2	14.4	14.0	13.7	13.7	
12"	q
F	321	517	277	446	286	461	263	423	273	439	255	410	252	403	204	326	142	226	
		19.3	17.8	16.4	16.5	15.7	16.0	15.4	15.7	15.6	
24"	q
F	275	442	218	351	247	398	221	356	199	320	180	289	205	330	190	306	142	226	
		20.5	19.7	17.7	18.1	18.7	19.5	17.9	18.6	20.0	
36"	q
F	275	442	218	351	186	300	161	260	199	320	180	289	164	264	150	242	128	206	
		20.5	19.7	20.1	20.9	18.7	19.5	20.3	21.2	23.2	
48"	q
F	275	442	218	351	186	300	161	260	142	228	126	203	164	264	150	242	128	206	
		20.5	19.7	20.1	20.9	22.0	23.2	20.3	21.2	23.2	
1
per span	q
F	275	442	218	351	186	300	161	260	142	228	126	203	113	183	103	166	85	137	
		20.5	19.7	20.1	20.9	22.0	23.2	24.6	25.9	28.9	
none	q
F	169	273	120	193	97	156	80	129	68	110	59	95	52	84	47	75	38	61	
		23.4	24.0	25.5	27.4	29.6	31.9	34.3	36.8	41.9	

Table 12.7 - Shear and Flexibility (No. 26 gauge Strata Rib, 36/4):
26ga   Strata Rib   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	16"	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	4' - 6"	5' - 0"	6' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	441	709	437	704	439	707	435	700	436	703	433	697	352	563	285	456	198	317	
		12.7	11.0	10.3	10.0	9.6	9.5	9.2	9.2	9.0	
8"	q
F	399	643	387	623	387	624	388	624	388	625	371	597	352	563	285	456	198	317	
		13.7	12.4	11.7	11.3	11.0	11.3	11.0	10.9	11.0	
12"	q
F	399	643	345	555	356	573	327	526	339	546	317	510	329	529	285	456	198	317	
		13.7	13.3	12.5	12.9	12.3	12.7	12.3	12.7	12.7	
24"	q
F	342	550	272	437	307	495	275	442	247	398	224	360	255	411	236	381	198	317	
		14.8	15.0	13.7	14.3	15.0	15.8	14.6	15.2	16.7	
36"	q
F	342	550	272	437	232	373	201	323	247	398	224	360	204	328	187	301	160	257	
		14.8	15.0	15.8	16.8	15.0	15.8	16.7	17.6	19.5	
48"	q
F	342	550	272	437	232	373	201	323	176	284	157	253	204	328	187	301	160	257	
		14.8	15.0	15.8	16.8	18.0	19.2	16.7	17.6	19.5	
1
per span	q
F	342	550	272	437	232	373	201	323	176	284	157	253	141	227	128	206	107	172	
		14.8	15.0	15.8	16.8	18.0	19.2	20.5	21.8	24.6	
none	q
F	211	339	149	240	121	195	100	162	85	138	74	119	65	105	58	94	48	77	
		17.4	18.9	20.7	22.7	24.8	27.0	29.3	31.6	36.3	
Note: Shear Tables 12.6 & 12.7 based on 36/4 attachment pattern. Values acceptable for use (conservative) for 36/8 pattern.

13.0 Super-Span®

Figure 13.1 - Basic Dimensions and Panel Attachment (Super-Span):

36/3 Pattern:		
36/6 Pattern:		

Table 13.1 - Section Properties (Super-Span):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
26	0.85	0.0173	80	82	0.2509	0.0483	0.34	0.0518	0.1435	
24	1.15	0.0232	50	65	0.3365	0.0633	0.34	0.0692	0.1908	
22	1.45	0.0294	50	65	0.4263	0.0833	0.34	0.0874	0.2395	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0505	0.0480	0.28	0.0386	0.0343	0.58	0.0455	0.0481	0.0390	
24	0.0849	0.0633	0.33	0.0653	0.0503	0.54	0.0625	0.0633	0.0547	
22	0.1193	0.0833	0.35	0.0874	0.0667	0.51	0.0800	0.0833	0.0722	

Table 13.2 - Inward (Positive) Uniform Allowable Loads (Super-Span):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

26	
Single Span	ASD, W/Ω
LRFD, φW	231
366	148
234	103
163	75
120	58
92	37
59	26
41	19
30	14
23	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	74
-
-	49
-
-	25
34
-	15
19
-	9
12
18	6
8
12	
	
Double Span	ASD, W/Ω
LRFD, φW	255
384	166
251	117
176	87
130	66
100	42
64	30
45	22
33	17
25	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	15
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	312
469	205
309	145
218	108
162	83
125	53
80	37
56	27
41	21
32	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	48
-
-	28
37
-	17
23
-	12
15
-	

24	
Single Span	ASD, W/Ω
LRFD, φW	326
517	209
331	145
230	106
169	82
129	52
83	36
57	27
42	20
32	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	97
-
-	65
-
-	33
44
-	19
26
-	12
16
24	8
11
16	
	
Double Span	ASD, W/Ω
LRFD, φW	297
448	193
291	135
203	100
150	76
115	49
74	34
51	25
38	19
29	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	366
551	239
359	168
253	124
187	96
144	61
92	43
65	31
47	24
36	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	36
-
-	23
30
-	15
20
-	

22	
Single Span	ASD, W/Ω
LRFD, φW	436
692	279
443	194
307	142
226	109
173	70
111	48
77	36
56	27
43	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	127
-
-	85
-
-	44
58
-	25
34
-	16
21
32	11
14
21	
	
Double Span	ASD, W/Ω
LRFD, φW	382
574	248
373	174
261	128
193	98
148	63
95	44
66	32
49	24
37	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	469
706	306
461	215
324	159
239	122
184	78
118	54
82	40
61	30
46	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	48
-
-	30
-
-	20
27
-	

Table 13.3 - Allowable Reactions at Supports (Super-Span):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	133
204	152
230	169
251	197
288	203
303	233
342	258
374	301
428	
24	End
Interior	191
298	218
333	240
363	278
412	292
443	333
495	367
539	425
613	
22	End
Interior	296
466	335
519	368
562	424
636	452
694	512
771	563
837	648
946	

Super-Span, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	246
142	391
213	171
118	271
177	126
101	199
152	96
89	153
133	62
62	98
98	43
43	68
68	31
31	50
50	24
24	38
38	
	12ga
(.1050")	#12
#12	36/6
36/3	355
177	532
266	246
142	391
213	171
118	271
177	126
101	199
152	96
89	153
133	62
62	98
98	43
43	68
68	31
31	50
50	24
24	38
38	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	171
93	271
139	126
80	199
119	96
70	153
104	62
56	98
84	43
43	68
68	31
31	50
50	24
24	38
38	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	126
67	199
101	96
59	153
88	62
47	98
70	43
39	68
59	31
31	50
50	24
24	38
38	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	62
37	98
55	43
30	68
46	31
26	50
39	24
23	38
34	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	84
42	43
23	68
35	31
20	50
30	24
18	38
26	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	58
29	31
17	50
25	24
15	38
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	246
142	391
213	171
118	271
177	126
101	199
152	96
89	153
133	62
62	98
98	43
43	68
68	31
31	50
50	24
24	38
38	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	171
96	271
145	126
83	199
124	96
72	153
108	62
58	98
87	43
43	68
68	31
31	50
50	24
24	38
38	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	62
39	98
58	43
32	68
48	31
28	50
41	24
24	38
36	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	62
32	97
49	43
27	68
41	31
23	50
35	24
20	38
30	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	63
32	31
18	50
27	24
16	38
24	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	24
13	35
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	43
22	60
30	31
19	50
26	24
17	38
22	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	62
32	87
43	43
27	68
36	31
23	50
31	24
20	38
27	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	96
48	131
65	62
39	98
52	43
32	68
44	31
28	50
37	24
24	38
33	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	171
88	238
119	126
76	199
102	96
66	153
89	62
53	98
72	43
43	68
60	31
31	50
50	24
24	38
38	

Super-Span, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	377
189	566
283	261
151	414
226	181
126	287
189	133
108	211
162	102
94	162
141	65
65	103
103	45
45	72
72	33
33	53
53	25
25	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	377
189	566
283	261
151	414
226	181
126	287
189	133
108	211
162	102
94	162
141	65
65	103
103	45
45	72
72	33
33	53
53	25
25	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	181
93	278
139	133
80	211
119	102
70	162
104	65
56	103
84	45
45	72
70	33
33	53
53	25
25	40
40	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	133
67	201
101	102
59	162
88	65
47	103
70	45
39	72
59	33
33	53
50	25
25	40
40	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	65
37	103
55	45
30	72
46	33
26	53
39	25
23	40
34	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	84
42	45
23	70
35	33
20	53
30	25
18	40
26	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	25
15	40
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	261
149	414
223	181
124	287
186	133
106	211
159	102
93	162
139	65
65	103
103	45
45	72
72	33
33	53
53	25
25	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	181
96	287
145	133
83	211
124	102
72	162
108	65
58	103
87	45
45	72
72	33
33	53
53	25
25	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	65
39	103
58	45
32	72
48	33
28	53
41	25
24	40
36	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	65
32	97
49	45
27	72
41	33
23	53
35	25
20	40
30	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	63
32	33
18	53
27	25
16	40
24	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	25
13	35
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	44
22	60
30	33
19	51
26	25
17	40
22	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	64
32	87
43	45
27	72
36	33
23	53
31	25
20	40
27	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	97
48	131
65	65
39	103
52	45
32	72
44	33
28	53
37	25
24	40
33	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	133
76	204
102	102
66	162
89	65
53	103
72	45
44	72
60	33
33	53
51	25
25	40
40	

Super-Span, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	478
239	717
358	349
191	553
287	242
159	384
239	178
137	282
205	136
119	216
179	87
87	138
138	61
61	96
96	44
44	71
71	34
34	54
54	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	334
167	501
251	242
139	384
209	178
119	282
179	136
104	216
157	87
84	138
125	61
61	96
96	44
44	71
71	34
34	54
54	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	159
80	239
119	136
70	209
104	87
56	138
84	61
46	96
70	44
40	71
60	34
34	54
52	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	134
67	201
101	117
59	176
88	87
47	138
70	61
39	96
59	44
34	71
50	34
29	54
44	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	73
37	110
55	61
30	91
46	44
26	71
39	34
23	54
34	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	84
42	47
23	70
35	40
20	60
30	34
18	53
26	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	44
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	242
124	372
186	178
106	282
159	136
93	216
139	87
74	138
112	61
61	96
93	44
44	71
71	34
34	54
54	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	165
83	248
124	136
72	216
108	87
58	138
87	61
48	96
72	44
41	71
62	34
34	54
54	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	77
39	116
58	61
32	96
48	44
28	71
41	34
24	54
36	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	65
32	97
49	54
27	81
41	44
23	70
35	34
20	54
30	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	47
24	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	33
17	45
22	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	64
32	87
43	54
27	72
36	44
23	62
31	34
20	54
27	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	97
48	131
65	78
39	105
52	61
32	87
44	44
28	71
37	34
24	54
33	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	151
76	204
102	132
66	179
89	87
53	138
72	61
44	96
60	44
38	71
51	34
33	54
45	

Table 13.7 - Shear and Flexibility (No. 26 gauge Super-Span, 36/3):
26ga  Super Span   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	337	542	338	544	336	540	337	542	335	540	335	539	335	539	334	538	296	474	
		18.3	16.1	14.9	13.8	13.2	12.2	11.5	11.0	10.6	
8"	q
F	308	496	309	498	310	500	311	501	301	485	304	490	298	480	301	485	296	474	
		19.8	17.7	16.4	15.4	15.1	14.0	13.6	13.0	12.9	
12"	q
F	280	451	290	466	271	436	280	452	266	428	263	423	261	420	259	417	258	415	
		21.0	18.6	18.2	16.8	16.8	16.0	15.5	15.2	14.9	
24"	q
F	222	358	255	410	232	373	211	340	193	311	207	333	182	293	194	312	176	284	
		23.3	20.1	19.9	20.1	20.6	19.0	20.1	19.0	20.1	
36"	q
F	222	358	192	309	168	270	211	340	193	311	164	264	141	227	162	261	145	234	
		23.3	23.0	23.3	20.1	20.6	21.9	23.7	21.5	22.9	
48"	q
F	222	358	192	309	168	270	149	239	133	214	164	264	141	227	123	198	107	172	
		23.3	23.0	23.3	24.1	25.1	21.9	23.7	25.6	27.6	
1
per span	q
F	222	358	192	309	168	270	149	239	133	214	105	170	86	139	73	117	63	101	
		23.3	23.0	23.3	24.1	25.1	27.6	30.5	33.6	36.8	
none	q
F	102	164	79	128	65	104	54	87	46	74	35	57	28	45	22	36	19	31	
		29.6	30.8	32.8	35.1	37.7	43.4	49.4	55.6	61.9	

Table 13.8 - Shear and Flexibility (No. 26 gauge Super-Span, 36/6):
26ga  Super Span   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	616	992	619	996	607	977	611	983	602	969	599	964	532	851	391	625	299	479	
		18.0	15.9	14.7	13.6	13.0	12.0	11.4	10.9	10.5	
8"	q
F	513	825	510	821	508	817	506	815	473	761	478	769	457	736	391	625	299	479	
		19.0	17.1	15.8	14.8	14.6	13.5	13.2	12.6	12.5	
12"	q
F	444	715	456	734	407	656	422	680	386	622	373	601	364	586	357	575	299	479	
		19.7	17.7	17.0	15.9	15.7	15.0	14.6	14.4	14.2	
24"	q
F	346	557	384	619	336	541	297	478	265	427	276	444	231	372	246	396	214	344	
		20.8	18.5	18.0	17.9	18.0	17.0	17.8	17.1	17.9	
36"	q
F	346	557	290	467	247	397	297	478	265	427	211	339	173	278	195	315	170	273	
		20.8	19.9	19.6	17.9	18.0	18.7	19.8	18.7	19.8	
48"	q
F	346	557	290	467	247	397	209	336	180	290	211	339	173	278	145	234	126	203	
		20.8	19.9	19.6	19.8	20.2	18.7	19.8	21.1	22.5	
1
per span	q
F	346	557	290	467	247	397	209	336	180	290	141	226	114	184	95	153	82	132	
		20.8	19.9	19.6	19.8	20.2	21.5	23.1	24.9	26.9	
none	q
F	203	327	159	256	129	208	108	174	92	149	70	113	55	89	45	72	38	61	
		22.9	22.4	22.7	23.4	24.3	26.6	29.3	32.1	35.1	

Table 13.9 - Shear and Flexibility (No. 24 gauge Super-Span, 36/3):
24ga  Super Span   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	358	576	359	578	357	574	358	576	356	574	356	573	356	573	356	572	355	572	
		11.1	10.0	9.5	9.0	8.7	8.2	7.9	7.7	7.5	
8"	q
F	327	527	329	529	330	531	330	532	320	515	323	521	317	511	320	516	316	508	
		12.4	11.4	10.8	10.3	10.4	9.8	9.7	9.4	9.4	
12"	q
F	298	479	308	496	288	464	298	480	283	455	279	450	277	446	275	443	274	441	
		13.4	12.2	12.3	11.5	11.8	11.5	11.4	11.3	11.2	
24"	q
F	236	380	271	436	246	397	225	362	205	331	220	354	193	312	206	332	187	301	
		15.4	13.5	13.8	14.4	15.1	14.1	15.4	14.6	15.7	
36"	q
F	236	380	204	329	179	287	225	362	205	331	174	280	150	242	172	277	154	249	
		15.4	15.9	16.8	14.4	15.1	16.7	18.4	16.7	18.1	
48"	q
F	236	380	204	329	179	287	158	254	141	227	174	280	150	242	131	212	114	184	
		15.4	15.9	16.8	17.8	19.0	16.7	18.4	20.3	22.2	
1
per span	q
F	236	380	204	329	179	287	158	254	141	227	113	183	93	150	79	126	68	109	
		15.4	15.9	16.8	17.8	19.0	21.6	24.3	27.2	30.1	
none	q
F	109	176	86	138	70	113	59	95	50	81	39	62	31	50	25	41	21	34	
		20.8	22.7	24.9	27.4	29.9	35.2	40.6	46.2	51.8	

Table 13.10 - Shear and Flexibility (No. 24 gauge Super-Span, 36/6):
24ga  Super Span   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	655	1054	658	1059	645	1039	649	1045	640	1030	637	1025	634	1021	588	941	450	720	
		10.8	9.8	9.3	8.8	8.5	8.1	7.8	7.6	7.4	
8"	q
F	545	877	542	872	540	869	538	866	502	809	508	818	486	782	492	793	450	720	
		11.7	10.8	10.3	9.8	9.9	9.4	9.4	9.1	9.1	
12"	q
F	472	761	485	781	433	697	449	723	411	661	397	639	387	623	380	612	374	603	
		12.3	11.3	11.3	10.7	10.9	10.7	10.6	10.6	10.6	
24"	q
F	368	592	408	658	357	575	316	508	282	454	293	472	248	400	263	423	229	368	
		13.3	12.1	12.2	12.5	12.9	12.4	13.3	13.0	13.8	
36"	q
F	368	592	308	496	264	425	316	508	282	454	227	365	186	300	211	339	182	293	
		13.3	13.3	13.6	12.5	12.9	13.9	15.1	14.3	15.4	
48"	q
F	368	592	308	496	264	425	225	361	194	313	227	365	186	300	157	253	135	218	
		13.3	13.3	13.6	14.1	14.7	13.9	15.1	16.4	17.7	
1
per span	q
F	368	592	308	496	264	425	225	361	194	313	152	245	124	199	104	167	89	143	
		13.3	13.3	13.6	14.1	14.7	16.3	17.9	19.7	21.5	
none	q
F	219	352	172	276	140	226	118	190	101	162	77	124	62	99	50	81	42	68	
		15.0	15.5	16.2	17.2	18.3	20.7	23.2	25.9	28.6	

Table 13.11 - Shear and Flexibility (No. 22 gauge Super-Span, 36/3):
22ga  Super Span   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	368	593	370	595	367	591	368	593	367	590	366	590	366	590	366	589	366	589	
		7.7	7.1	6.9	6.6	6.5	6.2	6.1	5.9	5.8	
8"	q
F	337	543	339	545	340	547	340	548	329	530	333	536	327	526	330	531	325	523	
		8.9	8.4	8.0	7.8	8.0	7.6	7.7	7.5	7.5	
12"	q
F	306	493	317	510	297	477	307	494	291	469	288	463	285	459	283	456	282	454	
		9.8	9.1	9.4	8.9	9.2	9.2	9.1	9.1	9.1	
24"	q
F	243	391	279	449	254	408	231	372	211	340	226	364	199	321	212	342	193	310	
		11.6	10.2	10.7	11.4	12.1	11.5	12.7	12.0	13.1	
36"	q
F	243	391	210	338	184	296	231	372	211	340	179	288	155	249	177	285	159	256	
		11.6	12.4	13.4	11.4	12.1	13.7	15.4	14.0	15.3	
48"	q
F	243	391	210	338	184	296	163	262	145	234	179	288	155	249	135	218	119	191	
		11.6	12.4	13.4	14.5	15.6	13.7	15.4	17.1	18.9	
1
per span	q
F	243	391	210	338	184	296	163	262	145	234	118	190	97	156	82	132	71	114	
		11.6	12.4	13.4	14.5	15.6	18.1	20.6	23.2	25.9	
none	q
F	114	183	89	144	73	118	62	99	53	85	41	66	33	53	27	43	23	36	
		16.4	18.4	20.6	22.9	25.3	30.2	35.1	40.1	45.2	

Table 13.12 - Shear and Flexibility (No. 22 gauge Super-Span, 36/6):
22ga  Super Span   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	674	1085	677	1090	664	1069	668	1076	659	1061	655	1055	653	1051	651	1049	643	1029	
		7.5	7.0	6.7	6.4	6.3	6.1	6.0	5.8	5.8	
8"	q
F	561	903	558	898	556	894	554	892	517	833	523	842	500	805	507	816	491	791	
		8.3	7.9	7.6	7.4	7.5	7.3	7.3	7.2	7.3	
12"	q
F	486	783	499	804	446	717	462	744	423	681	408	657	398	641	391	630	385	621	
		8.8	8.3	8.5	8.1	8.4	8.4	8.5	8.5	8.5	
24"	q
F	379	610	420	677	368	592	325	523	291	468	302	486	258	415	271	436	237	382	
		9.7	9.0	9.3	9.7	10.2	9.9	10.9	10.6	11.4	
36"	q
F	379	610	317	511	271	437	325	523	291	468	235	379	194	312	219	352	189	305	
		9.7	10.0	10.5	9.7	10.2	11.2	12.4	11.8	12.9	
48"	q
F	379	610	317	511	271	437	233	375	202	325	235	379	194	312	164	264	141	227	
		9.7	10.0	10.5	11.1	11.8	11.2	12.4	13.7	14.9	
1
per span	q
F	379	610	317	511	271	437	233	375	202	325	158	255	129	208	109	175	93	150	
		9.7	10.0	10.5	11.1	11.8	13.3	14.9	16.6	18.3	
none	q
F	227	366	179	288	146	236	123	198	106	170	82	131	65	105	54	87	45	73	
		11.2	12.0	12.9	13.9	15.0	17.3	19.7	22.1	24.6	

14.0 Reversed Super-Span®

Figure 14.1 - Basic Dimensions and Panel Attachment (Reversed Super-Span):

36/4 Pattern:	

Table 14.1 - Section Properties (Reversed Super-Span):

Gauge	Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
				
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
w
psf	t
in	Fy
ksi	Fu
ksi	Ag

in2/ft	Ig

in4/ft	yb
in	Sg+

in3/ft	Sg-

in3/ft	
26	0.82	0.0173	80	82	0.2421	0.0460	0.94	0.1392	0.0493	
24	1.10	0.0232	50	65	0.3246	0.0633	0.94	0.1850	0.0659	
22	1.40	0.0294	50	65	0.4113	0.0800	0.94	0.2322	0.0832	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
26	0.0382	0.0337	0.69	0.0432	0.0433	1.02	0.0304	0.0378	0.0442	
24	0.0629	0.0477	0.73	0.0593	0.0600	0.99	0.0513	0.0529	0.0611	
22	0.0895	0.0633	0.75	0.0760	0.0767	0.94	0.0777	0.0689	0.0778	

Table 14.2 - Inward (Positive) Uniform Allowable Loads (Reversed Super-Span):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

26	
Single Span	ASD, W/Ω
LRFD, φW	259
410	166
263	115
182	84
134	65
103	41
66	29
46	21
34	16
26	
		L/240
L/180 L/120	-
-
-	158
-
-	92
-
-	58
77
-	39
52
-	20
26
40	11
15
23	7
10
14	5
6
10	
	
Double Span	ASD, W/Ω
LRFD, φW	176
265	114
171	79
119	58
88	45
67	28
43	20
30	14
22	11
17	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	217
326	141
212	98
148	72
109	56
84	36
54	25
37	18
27	13
21	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	22
-
-	14
-
-	9
12
-	

24	
Single Span	ASD, W/Ω
LRFD, φW	296
470	189
301	132
209	97
153	74
117	47
75	33
52	24
38	19
29	
		L/240 L/180
L/120	-
-
-	-
-
-	128
-
-	81
-
-	54
72
-	28
37
-	16
21
32	10
13
20	7
9
14	
	
Double Span	ASD, W/Ω
LRFD, φW	247
372	159
240	112
168	82
124	63
95	41
61	27
42	20
31	16
24	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	305
459	198
298	138
208	102
154	78
118	51
76	35
53	25
39	19
29	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	30
-
-	19
-
-	13
17
-	

22	
Single Span	ASD, W/Ω
LRFD, φW	379
601	243
385	168
267	124
196	95
150	61
96	42
67	31
49	24
38	
		L/240
L/180 L/120	-
-
-	-
-
-	167
-
-	105
-
-	71
94
-	36
48
-	21
28
42	13
18
26	9
12
18	
	
Double Span	ASD, W/Ω
LRFD, φW	369
556	240
361	168
253	124
187	96
144	61
92	42
64	31
47	24
36	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	21
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	452
681	296
446	209
314	154
232	118
178	76
114	53
80	39
59	30
45	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	68
-
-	39
53
-	25
33
-	17
22
-	

Table 14.3 - Outward (Negative) Uniform Allowable Loads (No. 26 gauge Reversed Super- Span):
Reversed Super-Span, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12	36/4	236	355	189	284	158	236	124	196	95	150	61	96	42	67	31	49	24	38	
	12ga
(.1050")	#12	36/4	236	355	189	284	158	236	124	196	95	150	61	96	42	67	31	49	24	38	
	14ga
(.0700")	#12	36/4	186	278	149	223	124	186	106	159	93	139	61	96	42	67	31	49	24	38	
	16ga
(.0590")	#12	36/4	156	235	125	188	104	156	89	134	78	117	61	94	42	67	31	49	24	38	
	18ga
(.0459")	#12	36/4	122	183	97	146	81	122	70	104	61	91	49	73	41	61	31	49	24	38	
	20ga
(.0354")	#12	36/4	94	141	75	113	63	94	54	80	47	70	38	56	31	47	27	40	23	35	
	22ga
(.0294")	#12	36/4	78	117	62	94	52	78	45	67	39	58	31	47	26	39	22	33	19	29	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12	36/4	236	355	189	284	158	236	124	196	95	150	61	96	42	67	31	49	24	38	
	12ga
(.1050")	#12	36/4	193	289	154	231	129	193	110	165	95	145	61	96	42	67	31	49	24	38	
	14ga
(.0700")	#12	36/4	129	193	103	154	86	129	73	110	64	96	51	77	42	64	31	49	24	38	
	16ga
(.0590")	#12	36/4	108	162	87	130	72	108	62	93	54	81	43	65	36	54	31	46	24	38	
	18ga
(.0459")	#12	36/4	84	126	67	101	56	84	48	72	42	63	34	51	28	42	24	36	21	32	
	20ga
(.0354")	#12	36/4	65	97	52	78	43	65	37	56	32	49	26	39	22	32	19	28	16	24	
	22ga
(.0294")	#12	36/4	54	81	43	65	36	54	31	46	27	40	22	32	18	27	15	23	13	20	

Plywood & OSB	15/32"	#14	36/4	70	94	56	75	47	63	40	54	35	47	28	38	23	31	20	27	17	24	
	19/32"	#14	36/4	88	119	71	96	59	80	51	68	44	60	35	48	29	40	25	34	22	30	
	23/32"	#14	36/4	107	145	86	116	71	96	61	83	54	72	43	58	36	48	31	41	24	36	

Lumber (DFL)	
1" min	#9	36/4	129	174	103	140	86	116	74	100	65	87	52	70	42	58	31	49	24	38	
		#14	36/4	177	238	141	191	118	159	101	136	88	119	61	95	42	67	31	49	24	38	

Table 14.4 - Outward (Negative) Uniform Allowable Loads (No. 24 gauge Reversed Super- Span):
Reversed Super-Span, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12	36/4	251	377	201	302	164	251	121	192	93	147	59	94	41	65	30	48	23	37	
	12ga
(.1050")	#12	36/4	251	377	201	302	164	251	121	192	93	147	59	94	41	65	30	48	23	37	
	14ga
(.0700")	#12	36/4	186	278	149	223	124	186	106	159	93	139	59	94	41	65	30	48	23	37	
	16ga
(.0590")	#12	36/4	156	235	125	188	104	156	89	134	78	117	59	94	41	65	30	48	23	37	
	18ga
(.0459")	#12	36/4	122	183	97	146	81	122	70	104	61	91	49	73	41	61	30	48	23	37	
	20ga
(.0354")	#12	36/4	94	141	75	113	63	94	54	80	47	70	38	56	31	47	27	40	23	35	
	22ga
(.0294")	#12	36/4	78	117	62	94	52	78	45	67	39	58	31	47	26	39	22	33	19	29	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12	36/4	248	372	198	297	164	248	121	192	93	147	59	94	41	65	30	48	23	37	
	12ga
(.1050")	#12	36/4	193	289	154	231	129	193	110	165	93	145	59	94	41	65	30	48	23	37	
	14ga
(.0700")	#12	36/4	129	193	103	154	86	129	73	110	64	96	51	77	41	64	30	48	23	37	
	16ga
(.0590")	#12	36/4	108	162	87	130	72	108	62	93	54	81	43	65	36	54	30	46	23	37	
	18ga
(.0459")	#12	36/4	84	126	67	101	56	84	48	72	42	63	34	51	28	42	24	36	21	32	
	20ga
(.0354")	#12	36/4	65	97	52	78	43	65	37	56	32	49	26	39	22	32	19	28	16	24	
	22ga
(.0294")	#12	36/4	54	81	43	65	36	54	31	46	27	40	22	32	18	27	15	23	13	20	

Plywood & OSB	15/32"	#14	36/4	70	94	56	75	47	63	40	54	35	47	28	38	23	31	20	27	17	24	
	19/32"	#14	36/4	88	119	71	96	59	80	51	68	44	60	35	48	29	40	25	34	22	30	
	23/32"	#14	36/4	107	145	86	116	71	96	61	83	54	72	43	58	36	48	30	41	23	36	

Lumber (DFL)	
1" min	#9	36/4	129	174	103	140	86	116	74	100	65	87	52	70	41	58	30	48	23	37	
		#14	36/4	177	238	141	191	118	159	101	136	88	119	59	94	41	65	30	48	23	37	

Table 14.5 - Outward (Negative) Uniform Allowable Loads (No. 22 gauge Reversed Super- Span):
Reversed Super-Span, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12	36/4	319	478	255	382	211	319	155	245	118	188	76	120	53	84	39	61	30	47	
	12ga
(.1050")	#12	36/4	278	418	223	334	186	278	155	239	118	188	76	120	53	84	39	61	30	47	
	14ga
(.0700")	#12	36/4	186	278	149	223	124	186	106	159	93	139	74	111	53	84	39	61	30	47	
	16ga
(.0590")	#12	36/4	156	235	125	188	104	156	89	134	78	117	63	94	52	78	39	61	30	47	
	18ga
(.0459")	#12	36/4	122	183	97	146	81	122	70	104	61	91	49	73	41	61	35	52	30	46	
	20ga
(.0354")	#12	36/4	94	141	75	113	63	94	54	80	47	70	38	56	31	47	27	40	23	35	
	22ga
(.0294")	#12	36/4	78	117	62	94	52	78	45	67	39	58	31	47	26	39	22	33	19	29	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12	36/4	248	372	198	297	165	248	142	212	118	186	76	120	53	84	39	61	30	47	
	12ga
(.1050")	#12	36/4	193	289	154	231	129	193	110	165	96	145	76	116	53	84	39	61	30	47	
	14ga
(.0700")	#12	36/4	129	193	103	154	86	129	73	110	64	96	51	77	43	64	37	55	30	47	
	16ga
(.0590")	#12	36/4	108	162	87	130	72	108	62	93	54	81	43	65	36	54	31	46	27	41	
	18ga
(.0459")	#12	36/4	84	126	67	101	56	84	48	72	42	63	34	51	28	42	24	36	21	32	
	20ga
(.0354")	#12	36/4	65	97	52	78	43	65	37	56	32	49	26	39	22	32	19	28	16	24	
	22ga
(.0294")	#12	36/4	54	81	43	65	36	54	31	46	27	40	22	32	18	27	15	23	13	20	

Plywood & OSB	15/32"	#14	36/4	70	94	56	75	47	63	40	54	35	47	28	38	23	31	20	27	17	24	
	19/32"	#14	36/4	88	119	71	96	59	80	51	68	44	60	35	48	29	40	25	34	22	30	
	23/32"	#14	36/4	107	145	86	116	71	96	61	83	54	72	43	58	36	48	31	41	27	36	

Lumber (DFL)	
1" min	#9	36/4	129	174	103	140	86	116	74	100	65	87	52	70	43	58	37	50	30	44	
		#14	36/4	177	238	141	191	118	159	101	136	88	119	71	95	53	79	39	61	30	47	

Table 14.6 - Shear and Flexibility (No. 26 gauge Reversed Super-Span, 36/4):
26ga  Reverse Super Span   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	442	711	442	712	438	705	439	707	436	702	435	700	434	698	373	596	285	457	
		205.8	166.2	139.9	121.0	106.9	87.2	74.0	64.6	57.5	
8"	q
F	403	649	400	645	399	642	398	640	382	614	383	617	373	600	373	596	285	457	
		207.0	167.4	141.1	122.2	108.5	88.7	75.8	66.3	59.5	
12"	q
F	372	599	376	606	350	563	357	575	336	541	327	526	320	515	315	508	285	457	
		207.7	168.0	142.3	123.3	109.8	90.3	77.4	68.1	61.2	
24"	q
F	319	514	339	545	308	495	280	451	256	413	261	421	229	369	237	382	214	345	
		208.9	169.0	143.5	125.5	112.3	92.5	80.7	71.1	65.2	
36"	q
F	319	514	280	451	247	398	280	451	256	413	217	349	187	301	203	327	182	292	
		208.9	170.5	145.3	125.5	112.3	94.3	83.0	72.8	67.2	
48"	q
F	319	514	280	451	247	398	220	354	198	318	217	349	187	301	164	264	144	232	
		208.9	170.5	145.3	127.7	114.7	94.3	83.0	75.4	70.2	
1
per span	q
F	319	514	280	451	247	398	220	354	198	318	164	263	136	219	115	186	100	161	
		208.9	170.5	145.3	127.7	114.7	97.4	86.7	79.7	75.1	
none	q
F	228	366	190	306	163	262	140	225	121	195	95	153	78	125	65	105	56	91	
		211.4	173.5	149.0	131.9	119.6	103.5	93.9	88.2	84.8	

Table 14.7 - Shear and Flexibility (No. 24 gauge Reversed Super-Span, 36/4):
24ga  Reverse Super Span   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	469	756	470	757	466	749	467	751	463	746	462	744	461	742	460	741	452	723	
		101.0	82.0	69.4	60.4	53.7	44.2	37.9	33.4	30.0	
8"	q
F	428	689	426	685	424	683	423	681	406	653	408	656	396	638	399	642	391	629	
		102.0	83.1	70.5	61.4	55.1	45.5	39.5	34.9	31.7	
12"	q
F	396	637	400	644	372	598	379	611	357	575	347	559	340	548	335	540	331	533	
		102.7	83.6	71.6	62.4	56.1	46.9	40.8	36.5	33.2	
24"	q
F	339	546	360	579	327	527	298	480	272	439	278	448	244	392	252	406	228	367	
		103.7	84.4	72.5	64.3	58.3	48.8	43.7	39.0	36.7	
36"	q
F	339	546	298	479	263	423	298	480	272	439	231	371	199	320	216	347	193	311	
		103.7	85.7	74.1	64.3	58.3	50.4	45.6	40.5	38.4	
48"	q
F	339	546	298	479	263	423	234	377	210	338	231	371	199	320	174	280	154	248	
		103.7	85.7	74.1	66.1	60.4	50.4	45.6	42.7	40.9	
1
per span	q
F	339	546	298	479	263	423	234	377	210	338	174	280	146	235	124	200	107	173	
		103.7	85.7	74.1	66.1	60.4	53.0	48.8	46.4	45.2	
none	q
F	242	390	202	326	173	279	150	241	130	209	102	165	84	135	71	114	61	98	
		105.8	88.4	77.3	69.8	64.6	58.3	55.1	53.8	53.6	

Table 14.8 - Shear and Flexibility (No. 22 gauge Reversed Super-Span, 36/4):
22ga  Reverse Super Span   36/4 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	483	778	484	779	479	772	480	774	477	768	476	766	474	764	474	763	473	762	
		57.4	46.9	40.0	35.0	31.3	26.1	22.6	20.1	18.3	
8"	q
F	441	710	438	706	437	703	435	701	418	672	420	676	408	656	411	661	402	648	
		58.3	47.8	40.9	35.9	32.5	27.3	24.0	21.5	19.8	
12"	q
F	407	656	412	663	383	616	391	629	368	592	358	576	350	564	345	555	341	549	
		58.9	48.3	41.9	36.8	33.5	28.5	25.2	22.9	21.1	
24"	q
F	349	563	370	597	337	542	307	494	280	451	286	461	251	404	260	418	234	377	
		59.8	49.0	42.7	38.4	35.4	30.1	27.8	25.1	24.2	
36"	q
F	349	563	306	493	270	435	307	494	280	451	237	382	205	330	222	357	199	320	
		59.8	50.2	44.1	38.4	35.4	31.6	29.5	26.4	25.7	
48"	q
F	349	563	306	493	270	435	241	388	216	348	237	382	205	330	179	289	159	256	
		59.8	50.2	44.1	40.1	37.3	31.6	29.5	28.4	28.0	
1
per span	q
F	349	563	306	493	270	435	241	388	216	348	179	288	151	244	129	207	112	180	
		59.8	50.2	44.1	40.1	37.3	33.9	32.3	31.7	31.8	
none	q
F	249	401	208	335	178	287	155	250	135	217	106	171	87	140	74	119	63	102	
		61.7	52.5	46.9	43.3	41.0	38.6	37.9	38.2	39.2	

Table 14.9 - Allowable Reactions at Supports (Reversed Super-Span):

Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	3"	1"	1.5"	2"	3"	
26	End
Interior	133
204	152
230	169
251	197
288	203
303	233
342	258
374	301
428	
24	End
Interior	191
298	218
333	240
363	278
412	292
443	333
495	367
539	425
613	
22	End
Interior	296
466	335
519	368
562	424
636	452
694	512
771	563
837	648
946	

15.0 U-Panel

Figure 15.1 - Basic Dimensions and Panel Attachment (U-Panel):

36/3 Pattern:		
36/6 Pattern:		

Table 15.1 - Section Properties (U-Panel):

Gauge	
Weight	
Base Metal Thickness	
Yield Strength	
Tensile Strength	Gross Section Properties	
					
Area	Moment of Inertia	Distance to
N.A. from Bottom	Positive Section Modulus	Negative Section Modulus	
	w
psf	t
in	Fy
ksi	Fu
ksi	Ag
in2/ft	Ig
in4/ft	yb
in	Sg+
in3/ft	Sg-
in3/ft	
29	0.68	0.0139	80	82	0.2000	0.0210	0.27	0.0388	0.0772	
26	0.85	0.0173	80	82	0.2490	0.0260	0.27	0.0482	0.0954	
24	1.14	0.0232	50	65	0.3338	0.0333	0.28	0.0643	0.1266	
22	1.44	0.0294	50	65	0.4230	0.0433	0.28	0.0810	0.1587	

Gauge	Effective Section Properties	Uniform Load Only	
	
Area	Positive	Negative		
		Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	Moment of Inertia	Distance to
N.A. from Bottom	Section Modulus	
Id = (2Ie+Ig)/3	
	Ae/ft
in2	Ie+
in4/ft	yb
in	Se+
in3/ft	Ie-
in4/ft	yb
in	Se-
in3/ft	I+
in4/ft	I-
in4/ft	
29	0.0261	0.0203	0.21	0.0264	0.0133	0.46	0.0245	0.0206	0.0159	
26	0.0420	0.0260	0.25	0.0410	0.0177	0.43	0.0357	0.0260	0.0204	
24	0.0703	0.0333	0.27	0.0618	0.0273	0.41	0.0566	0.0333	0.0293	
22	0.0988	0.0433	0.27	0.0810	0.0400	0.39	0.0736	0.0433	0.0411	

Table 15.2 - Inward (Positive) Uniform Allowable Loads (U-Panel):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

29	
Single Span	ASD, W/Ω
LRFD, φW	158
250	101
160	70
111	52
82	39
63	25
40	18
28	13
20	10
16	
		L/240
L/180 L/120	-
-
-	86
-
-	50
67
-	31
42
-	21
28
-	11
14
22	6
8
12	4
5
8	3
4
5	
	
Double Span	ASD, W/Ω
LRFD, φW	142
214	92
138	64
96	47
70	36
54	23
35	15
23	12
18	8
13	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	15
-
-	9
-
-	6
-
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	175
264	114
172	79
120	59
89	45
68	29
43	20
30	15
22	11
17	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	40
-
-	20
27
-	12
16
-	7
10
-	5
7
10	

26	
Single Span	ASD, W/Ω
LRFD, φW	246
390	157
249	109
173	80
127	61
97	39
62	27
43	20
32	15
24	
		L/240
L/180 L/120	213
-
-	109
145
-	63
84
-	40
53
80	27
36
53	14
18
27	8
11
16	5
7
10	3
4
7	
	
Double Span	ASD, W/Ω
LRFD, φW	207
312	134
202	93
141	69
103	53
80	33
50	23
35	17
26	13
20	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	33
-
-	19
-
-	12
16
-	8
11
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	257
386	166
250	116
175	85
129	65
99	42
64	29
44	21
32	16
24	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	75
-
-	50
-
-	26
34
-	15
20
-	9
13
19	6
8
13	

24	
Single Span	ASD, W/Ω
LRFD, φW	308
489	197
313	137
217	101
160	77
122	49
78	34
54	25
40	19
31	
		L/240
L/180 L/120	273
-
-	140
186
-	81
108
-	51
68
-	34
46
68	17
23
35	10
13
20	6
8
13	4
6
9	
	
Double Span	ASD, W/Ω
LRFD, φW	273
410	177
266	123
186	91
137	70
105	44
67	31
46	22
34	17
26	
		L/240
L/180 L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	42
-
-	24
-
-	15
20
-	10
14
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	336
505	219
329	153
230	113
170	87
130	56
84	38
58	29
43	21
32	
		L/240
L/180 L/120	-
-
-	-
-
-	153
-
-	96
-
-	64
86
-	33
44
-	19
25
38	12
16
24	8
11
16	

Table 15.3 (Cont’d) - Inward (Positive) Uniform Allowable Loads (U-Panel):
Gauge	Span	Limit
Condition	Panel Span (Support Spacing)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	

22	
Single Span	ASD, W/Ω
LRFD, φW	404
641	259
410	180
285	132
209	101
160	65
103	45
71	33
52	25
40	
		L/240 L/180
L/120	355
-
-	182
242
-	105
140
-	66
88
-	44
59
89	23
30
45	13
18
26	8
11
17	6
7
11	
	
Double Span	ASD, W/Ω
LRFD, φW	353
532	229
345	160
241	118
178	91
137	57
87	40
60	29
44	22
34	
		L/240 L/180
L/120	-
-
-	-
-
-	-
-
-	-
-
-	-
-
-	55
-
-	32
-
-	20
27
-	13
18
-	
	
Triple Span	ASD, W/Ω
LRFD, φW	435
655	284
427	199
300	147
221	113
170	73
109	50
76	37
56	28
43	
		L/240 L/180
L/120	-
-
-	-
-
-	199
-
-	125
-
-	84
112
-	43
57
-	25
33
50	16
21
31	10
14
21	

Table 15.4 - Allowable Reactions at Supports (U-Panel):
Reactions at Supports based on Web Crippling	

Gauge	
Condition	Bearing Length of Webs	
			ASD (Pn/Ω)	(lbs/ft width)			LRFD (φPn)	(lbs/ft width)		
		1"	1.5"	2"	2.5"	1"	1.5"	2"	2.5"	
29	End
Interior	170
237	196
269	218
295	237
319	260
353	300
400	333
439	363
474	
26	End
Interior	256
366	293
412	325
451	353
486	391
544	449
613	497
671	540
722	
24	End
Interior	367
540	418
604	461
658	499
706	561
803	639
899	705
979	763
1050	
22	End
Interior	567
853	643
948	706
1029	763
1100	868
1269	983
1411	1081
1530	1167
1636	

Table 15.5 - Outward (Negative) Uniform Allowable Loads (29ga U-Panel):
U-Panel, 29ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	263
142	417
214	168
114	267
171	117
95	186
142	86
81	136
122	66
66	104
104	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	
	12ga
(.1050")	#12
#12	36/6
36/3	263
142	417
214	168
114	267
171	117
95	186
142	86
81	136
122	66
66	104
104	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	
	14ga
(.0700")	#12
#12	36/6
36/3	263
139	417
209	168
111	267
167	117
93	186
139	86
80	136
119	66
66	104
104	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	168
94	267
141	117
78	186
117	86
67	136
101	66
59	104
88	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	117
61	183
91	86
52	136
78	66
46	104
68	42
37	63
55	29
29	36
36	21
21	23
23	15
15	15
15	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	66
35	104
53	42
28	63
42	29
23	36
35	21
20	23
23	15
15	15
15	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	42
23	63
35	29
19	36
29	21
17	23
23	15
15	15
15	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	263
142	417
214	168
114	267
171	117
95	186
142	86
81	136
122	66
66	104
104	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	
	12ga
(.1050")	#12
#12	36/6
36/3	263
142	417
214	168
114	267
171	117
95	186
142	86
81	136
122	66
66	104
104	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	117
64	186
96	86
55	136
83	66
48	104
72	42
39	63
58	29
29	36
36	21
21	23
23	15
15	15
15	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	86
46	136
70	66
41	104
61	42
32	63
49	29
27	36
36	21
21	23
23	15
15	15
15	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	42
25	63
38	29
21	36
32	21
18	23
23	15
15	15
15	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	29
16	36
24	21
14	23
21	15
12	15
15	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	36
20	21
12	23
17	15
10	15
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	29
17	36
24	21
15	23
20	15
13	15
15	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	42
27	63
36	29
22	36
30	21
19	23
23	15
15	15
15	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	86
46	124
62	66
40	104
54	42
32	63
43	29
27	36
36	21
21	23
23	15
15	15
15	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	117
65	174
87	86
55	136
75	66
48	104
65	42
39	63
52	29
29	36
36	21
21	23
23	15
15	15
15	
		#14
#14	36/6
36/3	263
132	358
179	168
106	267
143	117
88	186
119	86
76	136
102	66
66	104
89	42
42	63
63	29
29	36
36	21
21	23
23	15
15	15
15	

U-Panel, 26ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	262
142	415
213	182
118	289
177	134
101	212
152	102
89	158
133	65
65	81
81	45
45	47
47	29
29	29
29	20
20	20
20	
	12ga
(.1050")	#12
#12	36/6
36/3	355
177	532
266	262
142	415
213	182
118	289
177	134
101	212
152	102
89	158
133	65
65	81
81	45
45	47
47	29
29	29
29	20
20	20
20	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	182
93	278
139	134
80	212
119	102
70	158
104	65
56	81
81	45
45	47
47	29
29	29
29	20
20	20
20	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	134
67	201
101	102
59	158
88	65
47	81
70	45
39	47
47	29
29	29
29	20
20	20
20	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	65
37	81
55	45
30	47
46	29
26	29
29	20
20	20
20	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	81
42	45
23	47
35	29
20	29
29	20
18	20
20	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	47
29	29
17	29
25	20
15	20
20	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	355
177	532
266	262
142	415
213	182
118	289
177	134
101	212
152	102
89	158
133	65
65	81
81	45
45	47
47	29
29	29
29	20
20	20
20	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	182
96	289
145	134
83	212
124	102
72	158
108	65
58	81
81	45
45	47
47	29
29	29
29	20
20	20
20	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	65
39	81
58	45
32	47
47	29
28	29
29	20
20	20
20	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	65
32	81
49	45
27	47
41	29
23	29
29	20
20	20
20	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	47
32	29
18	29
27	20
16	20
20	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	47
24	28
14	29
21	20
12	20
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	29
17	20
10	20
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	29
15	29
20	20
13	20
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	44
22	47
30	29
19	29
26	20
17	20
20	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	64
32	81
43	45
27	47
36	29
23	29
29	20
20	20
20	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	97
48	131
65	65
39	81
52	45
32	47
44	29
28	29
29	20
20	20
20	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	134
76	204
102	102
66	158
89	65
53	81
72	45
44	47
47	29
29	29
29	20
20	20
20	

U-Panel, 24ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	377
189	566
283	247
151	391
226	171
126	272
189	126
108	200
162	96
94	153
141	62
62	98
98	43
43	67
67	31
31	42
42	24
24	28
28	
	12ga
(.1050")	#12
#12	36/6
36/3	377
189	566
283	247
151	391
226	171
126	272
189	126
108	200
162	96
94	153
141	62
62	98
98	43
43	67
67	31
31	42
42	24
24	28
28	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	171
93	272
139	126
80	200
119	96
70	153
104	62
56	98
84	43
43	67
67	31
31	42
42	24
24	28
28	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	126
67	200
101	96
59	153
88	62
47	98
70	43
39	67
59	31
31	42
42	24
24	28
28	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	62
37	98
55	43
30	67
46	31
26	42
39	24
23	28
28	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	84
42	43
23	67
35	31
20	42
30	24
18	28
26	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	58
29	31
17	42
25	24
15	28
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	247
149	391
223	171
124	272
186	126
106	200
159	96
93	153
139	62
62	98
98	43
43	67
67	31
31	42
42	24
24	28
28	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	171
96	272
145	126
83	200
124	96
72	153
108	62
58	98
87	43
43	67
67	31
31	42
42	24
24	28
28	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	62
39	98
58	43
32	67
48	31
28	42
41	24
24	28
28	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	62
32	97
49	43
27	67
41	31
23	42
35	24
20	28
28	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	63
32	31
18	42
27	24
16	28
24	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	28
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	28
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	24
13	28
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	43
22	60
30	31
19	42
26	24
17	28
22	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	62
32	87
43	43
27	67
36	31
23	42
31	24
20	28
27	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	96
48	131
65	62
39	98
52	43
32	67
44	31
28	42
37	24
24	28
28	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	171
88	238
119	126
76	200
102	96
66	153
89	62
53	98
72	43
43	67
60	31
31	42
42	24
24	28
28	

U-Panel, 22ga	

Substrate

Material	Thick-
/ Grade	ness	Fastener	Panel System Negative (Outward) Uniform Load Capacity, (lbs/ft2)	
	
Nom. Size	
Attach. Pattern		
			Attachment Spacing, (ft-in)	
			2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
				
			ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	ASD
W/Ω	LRFD
φW	

Steel (Gr 50
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	478
239	717
358	323
191	513
287	224
159	356
239	165
137	262
205	126
119	200
179	81
81	128
128	56
56	89
89	41
41	59
59	32
32	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	418
209	627
313	323
167	501
251	224
139	356
209	165
119	262
179	126
104	200
157	81
81	128
125	56
56	89
89	41
41	59
59	32
32	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	278
139	418
209	223
111	334
167	186
93	278
139	159
80	239
119	126
70	200
104	81
56	128
84	56
46	89
70	41
40	59
59	32
32	40
40	
	16ga
(.0590")	#12
#12	36/6
36/3	235
117	352
176	188
94	282
141	156
78	235
117	134
67	201
101	117
59	176
88	81
47	128
70	56
39	89
59	41
34	59
50	32
29	40
40	
	18ga
(.0459")	#12
#12	36/6
36/3	183
91	274
137	146
73	219
110	122
61	183
91	104
52	157
78	91
46	137
68	73
37	110
55	56
30	89
46	41
26	59
39	32
23	40
34	
	20ga
(.0354")	#12
#12	36/6
36/3	141
70	211
106	113
56	169
84	94
47	141
70	80
40	121
60	70
35	106
53	56
28	84
42	47
23	70
35	40
20	59
30	32
18	40
26	
	22ga
(.0294")	#12
#12	36/6
36/3	117
58	175
88	94
47	140
70	78
39	117
58	67
33	100
50	58
29	88
44	47
23	70
35	39
19	58
29	33
17	50
25	29
15	40
22	

Steel (Gr 33
min.)	≥10ga
(.1350")	#12
#12	36/6
36/3	372
186	558
279	297
149	446
223	224
124	356
186	165
106	262
159	126
93	200
139	81
74	128
112	56
56	89
89	41
41	59
59	32
32	40
40	
	12ga
(.1050")	#12
#12	36/6
36/3	289
145	434
217	231
116	347
174	193
96	289
145	165
83	248
124	126
72	200
108	81
58	128
87	56
48	89
72	41
41	59
59	32
32	40
40	
	14ga
(.0700")	#12
#12	36/6
36/3	193
96	289
145	154
77	231
116	129
64	193
96	110
55	165
83	96
48	145
72	77
39	116
58	56
32	89
48	41
28	59
41	32
24	40
36	
	16ga
(.0590")	#12
#12	36/6
36/3	162
81	244
122	130
65	195
97	108
54	162
81	93
46	139
70	81
41	122
61	65
32	97
49	54
27	81
41	41
23	59
35	32
20	40
30	
	18ga
(.0459")	#12
#12	36/6
36/3	126
63	190
95	101
51	152
76	84
42	126
63	72
36	108
54	63
32	95
47	51
25	76
38	42
21	63
32	36
18	54
27	32
16	40
24	
	20ga
(.0354")	#12
#12	36/6
36/3	97
49	146
73	78
39	117
58	65
32	97
49	56
28	84
42	49
24	73
37	39
19	58
29	32
16	49
24	28
14	42
21	24
12	37
18	
	22ga
(.0294")	#12
#12	36/6
36/3	81
40	121
61	65
32	97
49	54
27	81
40	46
23	69
35	40
20	61
30	32
16	49
24	27
13	40
20	23
12	35
17	20
10	30
15	

Plywood & OSB	15/32"	#14
#14	36/6
36/3	105
52	141
71	84
42	113
57	70
35	94
47	60
30	81
40	52
26	71
35	42
21	57
28	35
17	47
24	30
15	40
20	26
13	35
18	
	19/32"	#14
#14	36/6
36/3	133
66	179
90	106
53	143
72	88
44	119
60	76
38	102
51	66
33	90
45	53
27	72
36	44
22	60
30	38
19	51
26	32
17	40
22	
	23/32"	#14
#14	36/6
36/3	161
80	217
108	128
64	173
87	107
54	145
72	92
46	124
62	80
40	108
54	64
32	87
43	54
27	72
36	41
23	59
31	32
20	40
27	

Lumber (DFL)	
1" min	#9
#9	36/6
36/3	194
97	262
131	155
78	209
105	129
65	174
87	111
55	149
75	97
48	131
65	78
39	105
52	56
32	87
44	41
28	59
37	32
24	40
33	
		#14
#14	36/6
36/3	265
132	358
179	212
106	286
143	177
88	238
119	151
76	204
102	126
66	179
89	81
53	128
72	56
44	89
60	41
38	59
51	32
32	40
40	

Table 15.9 - Shear and Flexibility (No. 29 gauge U-Panel, 36/3):
29ga   U-Panel   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	270	435	271	437	270	434	271	436	269	434	269	433	238	381	175	280	134	214	
		155.8	126.5	107.2	93.2	82.8	68.3	58.5	51.6	46.4	
8"	q
F	248	399	249	401	249	402	250	402	242	390	245	394	238	381	175	280	134	214	
		157.5	128.3	108.8	94.9	85.0	70.3	60.9	53.8	48.8	
12"	q
F	225	363	233	375	218	351	226	363	214	345	211	341	210	338	175	280	134	214	
		158.8	129.3	110.8	96.5	86.8	72.5	63.0	56.2	51.1	
24"	q
F	180	289	205	331	187	301	170	274	156	251	166	268	147	236	156	252	134	214	
		161.3	130.9	112.7	100.1	91.0	75.8	68.1	60.4	56.8	
36"	q
F	180	289	155	250	136	219	170	274	156	251	132	213	114	184	131	210	117	189	
		161.3	134.0	116.5	100.1	91.0	79.1	72.0	63.2	60.0	
48"	q
F	180	289	155	250	136	219	120	194	108	173	132	213	114	184	100	161	88	142	
		161.3	134.0	116.5	104.5	96.0	79.1	72.0	67.7	65.2	
1
per span	q
F	180	289	155	250	136	219	120	194	108	173	88	141	72	116	61	99	53	85	
		161.3	134.0	116.5	104.5	96.0	85.3	79.5	76.5	75.2	
none	q
F	86	139	68	109	56	90	47	76	40	65	31	50	25	41	21	34	18	28	
		168.1	142.5	126.7	116.4	109.7	102.4	100.0	100.4	102.5	

Table 15.10 - Shear and Flexibility (No. 29 gauge U-Panel, 36/6):
29ga   U-Panel   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	495	798	498	801	488	786	491	790	484	779	343	548	238	381	175	280	134	214	
		16.8	15.3	14.4	13.7	13.3	12.6	12.1	11.8	11.6	
8"	q
F	413	666	411	661	409	658	408	656	381	613	343	548	238	381	175	280	134	214	
		17.9	16.6	15.7	15.0	15.0	14.3	14.1	13.7	13.7	
12"	q
F	359	578	368	593	329	530	341	549	312	502	301	485	238	381	175	280	134	214	
		18.7	17.2	17.0	16.2	16.3	15.9	15.8	15.6	15.6	
24"	q
F	281	453	311	501	272	438	241	387	215	346	223	359	190	307	175	280	134	214	
		19.9	18.1	18.1	18.4	18.8	18.1	19.2	18.7	19.8	
36"	q
F	281	453	236	380	202	325	241	387	215	346	177	285	150	241	166	267	134	214	
		19.9	19.6	19.9	18.4	18.8	20.0	21.4	20.5	21.8	
48"	q
F	281	453	236	380	202	325	176	283	156	251	177	285	150	241	128	206	111	179	
		19.9	19.6	19.9	20.4	21.2	20.0	21.4	23.1	24.7	
1
per span	q
F	281	453	236	380	202	325	176	283	156	251	124	200	103	165	87	141	76	122	
		19.9	19.6	19.9	20.4	21.2	23.0	25.0	27.2	29.5	
none	q
F	174	280	141	227	117	188	99	160	86	139	68	109	56	90	47	76	40	65	
		22.1	22.4	23.2	24.3	25.6	28.5	31.7	35.0	38.4	

Table 15.11 - Shear and Flexibility (No. 26 gauge U-Panel, 36/3):
26ga   U-Panel   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	337	542	338	544	336	540	337	542	335	540	335	539	329	527	242	387	185	296	
		92.5	75.5	64.4	56.3	50.3	41.9	36.3	32.3	29.3	
8"	q
F	308	496	310	498	310	500	311	501	301	485	304	490	299	481	242	387	185	296	
		94.0	77.1	65.9	57.8	52.3	43.7	38.4	34.3	31.5	
12"	q
F	281	452	290	467	272	437	281	452	266	429	263	424	261	420	242	387	185	296	
		95.2	78.0	67.6	59.2	53.9	45.7	40.3	36.4	33.5	
24"	q
F	224	360	256	412	233	375	212	342	194	312	207	334	183	294	194	313	177	284	
		97.4	79.5	69.4	62.5	57.7	48.7	44.9	40.2	38.7	
36"	q
F	224	360	193	312	169	273	212	342	194	312	165	265	142	229	162	262	146	235	
		97.4	82.3	72.7	62.5	57.7	51.6	48.4	42.7	41.5	
48"	q
F	224	360	193	312	169	273	150	241	134	216	165	265	142	229	124	200	110	178	
		97.4	82.3	72.7	66.4	62.2	51.6	48.4	46.8	46.1	
1
per span	q
F	224	360	193	312	169	273	150	241	134	216	110	177	91	146	77	124	66	107	
		97.4	82.3	72.7	66.4	62.2	57.2	55.1	54.6	55.1	
none	q
F	108	174	85	137	70	113	59	95	51	82	40	64	32	52	27	43	23	36	
		103.6	89.9	81.9	77.1	74.4	72.5	73.5	76.0	79.6	

Table 15.12 - Shear and Flexibility (No. 26 gauge U-Panel, 36/6):
26ga   U-Panel   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	617	993	619	997	607	978	611	984	602	970	474	759	329	527	242	387	185	296	
		12.0	11.1	10.7	10.2	10.0	9.7	9.4	9.2	9.1	
8"	q
F	515	828	511	823	509	819	507	817	474	763	474	759	329	527	242	387	185	296	
		13.0	12.2	11.8	11.4	11.6	11.2	11.2	11.0	11.0	
12"	q
F	447	720	458	738	409	659	424	683	388	625	375	603	329	527	242	387	185	296	
		13.7	12.8	12.9	12.4	12.7	12.7	12.7	12.7	12.7	
24"	q
F	350	564	387	623	339	545	300	482	268	431	278	447	237	382	242	387	185	296	
		14.7	13.6	13.9	14.4	15.0	14.6	15.8	15.4	16.4	
36"	q
F	350	564	293	472	251	405	300	482	268	431	220	354	186	300	206	332	182	294	
		14.7	15.0	15.5	14.4	15.0	16.3	17.8	17.0	18.3	
48"	q
F	350	564	293	472	251	405	219	353	194	312	220	354	186	300	160	257	139	224	
		14.7	15.0	15.5	16.3	17.1	16.3	17.8	19.3	20.9	
1
per span	q
F	350	564	293	472	251	405	219	353	194	312	156	250	129	207	109	176	95	153	
		14.7	15.0	15.5	16.3	17.1	19.0	21.0	23.0	25.2	
none	q
F	217	349	176	284	146	235	124	200	108	174	85	137	70	113	59	95	51	82	
		16.7	17.5	18.5	19.8	21.1	23.9	26.9	30.0	33.2	

Table 15.13 - Shear and Flexibility (No. 24 gauge U-Panel, 36/3):
24ga   U-Panel   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	358	576	359	578	357	575	358	576	356	574	356	573	356	573	356	572	278	445	
		46.7	38.6	33.3	29.4	26.6	22.5	19.9	17.9	16.5	
8"	q
F	328	528	329	530	330	531	331	532	320	516	324	521	317	511	320	516	278	445	
		48.1	40.0	34.6	30.7	28.2	24.1	21.7	19.6	18.4	
12"	q
F	298	480	308	496	289	465	299	481	283	456	280	451	277	447	276	444	274	442	
		49.1	40.7	36.1	31.9	29.7	25.8	23.3	21.5	20.1	
24"	q
F	238	383	272	437	247	398	225	363	206	332	220	355	194	313	207	333	188	302	
		51.0	42.0	37.6	34.8	32.9	28.4	27.3	24.8	24.6	
36"	q
F	238	383	206	331	180	290	225	363	206	332	175	282	151	243	173	278	155	250	
		51.0	44.4	40.5	34.8	32.9	30.9	30.3	26.9	27.1	
48"	q
F	238	383	206	331	180	290	159	256	142	229	175	282	151	243	132	213	117	189	
		51.0	44.4	40.5	38.1	36.8	30.9	30.3	30.4	31.1	
1
per span	q
F	238	383	206	331	180	290	159	256	142	229	117	188	97	156	83	133	72	115	
		51.0	44.4	40.5	38.1	36.8	35.7	36.1	37.2	38.8	
none	q
F	115	185	91	147	75	121	64	103	55	89	43	69	35	56	29	47	25	40	
		56.3	51.0	48.4	47.4	47.3	49.0	51.9	55.7	59.9	

Table 15.14 - Shear and Flexibility (No. 24 gauge U-Panel, 36/6):
24ga   U-Panel   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	655	1055	658	1060	646	1040	650	1046	640	1031	637	1026	494	791	363	581	278	445	
		8.0	7.5	7.4	7.2	7.1	7.0	6.9	6.8	6.8	
8"	q
F	547	881	543	875	541	871	539	868	504	811	509	819	487	784	363	581	278	445	
		8.8	8.5	8.4	8.2	8.5	8.3	8.4	8.3	8.4	
12"	q
F	475	765	487	784	435	701	451	726	413	664	398	641	388	625	363	581	278	445	
		9.4	9.0	9.4	9.1	9.5	9.6	9.7	9.8	9.9	
24"	q
F	372	599	411	662	360	579	318	513	285	458	295	475	252	406	264	426	235	378	
		10.3	9.8	10.2	10.8	11.4	11.3	12.4	12.1	13.1	
36"	q
F	372	599	312	502	267	430	318	513	285	458	234	377	198	319	219	353	194	312	
		10.3	10.9	11.6	10.8	11.4	12.7	14.1	13.5	14.7	
48"	q
F	372	599	312	502	267	430	233	375	206	332	234	377	198	319	171	275	149	239	
		10.3	10.9	11.6	12.4	13.2	12.7	14.1	15.5	17.0	
1
per span	q
F	372	599	312	502	267	430	233	375	206	332	166	268	138	221	117	189	102	164	
		10.3	10.9	11.6	12.4	13.2	15.0	16.9	18.7	20.7	
none	q
F	230	371	188	302	156	251	133	214	116	186	91	147	75	121	64	103	55	89	
		12.1	13.1	14.2	15.4	16.7	19.3	22.0	24.8	27.5	

Table 15.15 - Shear and Flexibility (No. 22 gauge U-Panel, 36/3):
22ga   U-Panel   36/3 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	368	593	370	595	367	591	368	593	367	591	366	590	366	590	366	589	366	589	
		27.5	22.9	20.1	17.9	16.4	14.2	12.7	11.6	10.8	
8"	q
F	337	543	339	545	340	547	340	548	330	531	333	536	327	526	330	531	325	523	
		28.7	24.2	21.2	19.1	17.9	15.5	14.3	13.1	12.5	
12"	q
F	307	494	317	511	297	478	307	495	292	469	288	464	286	460	284	457	282	455	
		29.5	24.9	22.6	20.2	19.1	17.1	15.7	14.8	14.1	
24"	q
F	245	394	280	450	255	410	232	374	212	342	227	365	200	322	213	343	193	311	
		31.3	26.0	23.9	22.7	22.0	19.4	19.3	17.7	18.0	
36"	q
F	245	394	212	341	185	298	232	374	212	342	180	290	155	250	178	286	160	257	
		31.3	28.1	26.5	22.7	22.0	21.6	21.9	19.6	20.2	
48"	q
F	245	394	212	341	185	298	164	264	147	236	180	290	155	250	136	219	121	195	
		31.3	28.1	26.5	25.7	25.4	21.6	21.9	22.7	23.8	
1
per span	q
F	245	394	212	341	185	298	164	264	147	236	120	194	101	162	86	138	74	120	
		31.3	28.1	26.5	25.7	25.4	25.9	27.1	28.7	30.6	
none	q
F	119	191	95	153	78	126	66	107	57	92	45	72	37	59	31	49	26	42	
		36.0	34.0	33.5	33.9	34.8	37.6	41.2	45.2	49.4	

Table 15.16 - Shear and Flexibility (No. 22 gauge U-Panel, 36/6):
22ga   U-Panel   36/6 Attachment Pattern	Support Screw: #12 HWH Side Lap Screw: #12 SD
Diaphragm Shear Capacities, q (plf) and Flexibility Factors, F (10-6 in/lbs)	
Attachment Spacing, (ft-in)	

Side Seam Spacing	2' - 0"	2' - 6"	3' - 0"	3' - 6"	4' - 0"	5' - 0"	6' - 0"	7' - 0"	8' - 0"	
	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	ASD
Sn/Ω	LRFD
φSn	
4"	q
F	675	1086	678	1091	665	1070	669	1077	659	1061	656	1056	653	1052	528	845	404	647	
		5.9	5.7	5.7	5.6	5.6	5.5	5.5	5.4	5.4	
8"	q
F	563	907	559	901	557	897	555	894	518	835	524	843	501	807	508	817	404	647	
		6.7	6.6	6.5	6.5	6.7	6.6	6.8	6.8	6.9	
12"	q
F	489	788	501	807	448	721	464	747	425	684	410	660	400	644	392	632	387	622	
		7.2	7.0	7.4	7.3	7.6	7.8	8.0	8.1	8.2	
24"	q
F	383	617	423	682	370	596	328	528	293	472	304	489	259	418	272	438	242	389	
		8.1	7.7	8.2	8.8	9.4	9.3	10.3	10.2	11.0	
36"	q
F	383	617	321	517	275	443	328	528	293	472	241	388	204	328	226	363	200	321	
		8.1	8.7	9.4	8.8	9.4	10.6	11.9	11.4	12.4	
48"	q
F	383	617	321	517	275	443	240	386	212	342	241	388	204	328	176	284	154	247	
		8.1	8.7	9.4	10.2	11.0	10.6	11.9	13.2	14.5	
1
per span	q
F	383	617	321	517	275	443	240	386	212	342	172	276	142	229	121	195	105	170	
		8.1	8.7	9.4	10.2	11.0	12.6	14.3	16.0	17.7	
none	q
F	237	382	193	311	161	260	137	221	120	193	95	153	78	126	66	107	57	92	
		9.6	10.6	11.7	12.9	14.0	16.5	18.9	21.4	23.9	

CALIFORNIA SUPPLEMENT
ASC PROFILES LLC
2110 Enterprise Blvd.
West Sacramento, CA 95691 (800) 360-2477
www.ascprofiles.com

AEP SPAN AND ASC BUILDING PRODUCTS: SINGLE SKIN STEEL ROOF AND WALL PANELS WITH EXPOSED FASTENERS

CSI Section:
07 61 00 Sheet Metal Roofing
07 64 00 Sheet Metal Wall Cladding

RECOGNITION

ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners described in ER-0550 have been evaluated for use as exterior roof and wall covering panels. The structural and fire-resistance properties of the panels have been evaluated for compliance with the following codes:

2019 California Building Code® (CBC)
2019 California Residential Code® (CRC)
2016 California Building Code® (CBC)
2016 California Residential Code® (CRC)

ADDITIONAL REQUIREMENTS

Roof panels may be used in “new buildings located in any Fire Hazard Severity Zone or any Wildland-Urban Interface Fire Area designated by the enforcing agency constructed after the application date stipulated in CBC Section 701A.3.1 shall comply with the provisions” in accordance with Sections 701A.3 and 705A of the CBC and with the 2018 IBC as presented in ER-550.

Pertaining to structures under the jurisdiction of DSA and OSHPD, designs for the transfer of anchorage forces into the diaphragm shall comply with CBC Section 1613A.5.1 of the 2019 CBC.

3.0 SUBSTANTIATING DATA

Data submitted in conformance with IAPMO-UES Evaluation Criteria Single Skin Steel Roof and Wall Panels, EC-011, revised July 2019. Any product testing is from laboratories in compliance with ISO/IEC 17025.

additional information about this evaluation report please visit www.uniform-es.org or email us at info@uniform-es.org

CITY OF LOS ANGELES SUPPLEMENT
ASC PROFILES LLC
2110 Enterprise Blvd.
West Sacramento, CA 95691 (800) 360-2477
www.ascprofiles.com

PRODUCT USE

ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners for use as exterior roof and wall covering panels. The structural and fire-resistance properties of the panels have been evaluated.

additional information about this evaluation report please visit www.uniform-es.org or email us at info@uniform-es.org

AEP SPAN AND ASC BUILDING PRODUCTS: SINGLE SKIN STEEL ROOF AND WALL PANELS WITH EXPOSED FASTENERS

CSI Section:
07 61 00 Sheet Metal Roofing
07 64 00 Sheet Metal Wall Cladding

RECOGNITION
ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners evaluated in IAPMO UES ER-550 complies with the following codes, subject to the additional requirements in Sections 2.0 and 3.0 of this supplement:

2017 City of Los Angeles Building Code (LABC)
2017 City of Los Angeles Residential Code (LARC)

LIMITATIONS

Roof panels recognized in this report supplement is subject to the following limitations:

ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners shall be installed and identified in accordance with this report, codes listed in Section 1.0 of this report, and the manufacturer’s instructions. Where conflicts occur, the more restrictive shall govern.

Prior to installation, calculations and details demonstrating compliance with this approval report and the 2017 Los Angeles Building Code or 2017 Los Angeles Residential Code shall be submitted to the structural plan check section for review and approval. The calculations and details shall be prepared by a registered engineer, licensed in the State of California.

The design and installation of the ASC Profiles LLC Single Skin Steel Roof and Wall Panels with Exposed Fasteners shall be in accordance with LABC Chapters 15 ,16, and 17 as applicable.