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AWC WFCM 2015

$43.33

Wood Frame Construction Manual

Published By Publication Date Number of Pages
AWC 2015 324
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The 2015 Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings was developed by the American Wood Council’s (AWC) Wood Design Standards Committee and has been approved by ANSI as an American National Standard. The 2015 WFCM is referenced in the 2015 International Building Code and 2015 International Residential Code. Tabulated engineered and prescriptive design provisions in WFCM Chapters 2 and 3, respectively are based on the following loads from ASCE 7-10 Minimum Design Loads for Buildings and Other Structures: 0-70 psf ground snow loads 110-195 mph 700-year return period 3-second gust basic wind speeds Seismic Design Categories A-D The WFCM includes design and construction provisions for connections, wall systems, floor systems, and roof systems. A range of structural elements are covered, including sawn lumber, structural glued laminated timber, wood structural sheathing, I-joists, and trusses.

PDF Catalog

PDF Pages PDF Title
1 Cover
3 Title Page
5 Foreword
7 Table of Contents
9 Chapter 1 General Information
10 Table 1 Applicability Limitations
11 1.1 Scope
12 1.2 Materials Standards
13 1.3 Definitions
17 1.4 Symbols
19 Figure 1.1 Basic Wind Speeds for One- and Two-Family Dwellings Based on 700-yr Return Period 3-second Gust Basic Wind Speeds
20 Figure 1.2 Mean Roof Height (MRH)
21 Chapter 2 Engineered Design
22 Table 2 Engineered Design Limitations
23 2.1 General Provisions
Table 2.1.3.1 Adjustment for Wind Exposure and Mean Roof Height
25 2.2 Connections
27 2.3 Floor Systems
29 2.4 Wall Systems
31 2.5 Roof Systems
34 List of Figures
36 Figures 2.1 – 2.5
Figure 2.1a Cantilever With Loadbearing Wall
Figure 2.1b Cantilever With Non-Loadbearing Wall
37 Figure 2.1c Cantilever With Loadbearing Wall – Designed for Additional Load Where Cantilever > d
Figure 2.1d Setback Limits for Loadbearing Wall
38 Figure 2.1e Setback Limits for Loadbearing Wall – Designed for Additional Load Where Offset > d
Figure 2.1f Rafter Overhang Limits
39 Figure 2.1g Rake Overhang Limits – Outlookers
40 Figure 2.1h Rake Overhang Limits – Lookout Blocks
41 Figure 2.1i Vertical Floor Offset
Figure 2.1j Floor and Roof Diaphragm Aspect Ratio Limits
42 Figure 2.1k Floor Diaphragm Opening Limits

Figure 2.1L Shear Wall Line Offset
43 Figure 2.2a Typical Lateral Framing Connections
44 Figure 2.2b Shear Connection Locations
45 Figure 2.2c Typical Wind Uplift Connections
46 Figure 2.2d Overturning Detail
47 Figure 2.3 Endwall Blocking Detail
48 Figure 2.4a I-Joist Bearing on Wall With Blocking as End Restraint
Figure 2.4b I-Joist Bearing on Wall With Rim Joist as End Restraint
Figure 2.4c Continuous I-Joist Over a Bearing Wall Supporting a Wall Above
49 Figure 2.4d Vertical Wall Offset on I-Joist Floor Assembly
Figure 2.4e Continuous Cantilevered I-Joist Over a Bearing Wall Supporting a Wall Above
50 Figure 2.5a I-Joist Connection to Sill Plate

Figure 2.5b Column Load Transfer Through I-Joist Floor System to Foundation
Figure 2.5c I-Joist Bevel Cut
51 Figures 2.6 – 2.10
Figure 2.6a I-Joist Floor Header
Figure 2.6b I-Joist Floor Header With Filler Block Between Double Trimmers
52 Figure 2.6c Stair Stringer Connection to I-Joist Floor System
Figure 2.7 I-Joist Supported by Hangers Attached to Interior Beam
53 Figure 2.8 I-Joist Web Stiffener Attachment at Bearing Points
54 Figure 2.9a Typical I-Joist Cantilever Supporting Uniform Loads
Figure 2.9b L umber Cantilever Attached to I-Joist
55 Figure 2.10a Rafter Ridge Blocking and Uplift Strap for I-Joist Bearing on a Ridge Beam
Figure 2.10b Hanger and Uplift Strap for I-Joist Attached to Side of Ridge Beam
Figure 2.10c Filler Block and Ridge Blocking for I-Joist Bearing on Ridge Beam
Figure 2.10d I-Joist Connection to Header at Roof Opening
56 Figures 2.11 – 2.15
Figure 2.11a I-Joist Roof Rafter Bearing on Exterior Wall With Top Chord Overhang
Figure 2.11b I-Joist Roof Rafter Bearing on Exterior Wall With Lumber Overhang
Figure 2.11c I-Joist Roof Rafter Bearing on Beveled Plate
57 Figure 2.11d I-Joist Roof Rafter Bearing on Exterior Wall With Top Chord and Lumber Overhang
Figure 2.11e Gable End Rake Overhang Outlookers Attached to I-Joist Roof Rafter
58 Figure 2.12a Bottom Chord Bearing on Exterior Wall
Figure 2.12b Bottom Chord Bearing on Interior Wall
Figure 2.12c Top Chord Bearing on Interior Wall
Figure 2.12d Top Chord Bearing on Exterior Wall
Figure 2.12e Interior Pocket Bearing
59 Figure 2.12f Top Chord Bearing Truss on Ledger
Figure 2.12g Bottom Chord Bearing Truss in Hanger
60 Figure 2.13a Truss Cantilever Detail
Figure 2.13b Truss Cantilever Detail
61 Figure 2.14 Truss Strongback Details
62 Figure 2.15a Blocking in Floor Space at End Bearing Truss With Band
63 Figure 2.15b Blocking in Floor Space at Interior Loadbearing Walls
64 Figure 2.15c Blocking in Floor Space at Floor Elevation Change
65 Figures 2.16 – 2.18
Figure 2.16a Roof Truss Overhang
Figure 2.16b Roof Truss Overhang and Cantilever
Figure 2.16c Roof Truss Overhang and Cantilever
Figure 2.16d Roof Truss Overhang With Level Return
66 Figure 2.17a Plan and Isometric of Jack Truss System
67 Figure 2.17b Plan and Isometric of Step Down Truss System
68 Figure 2.18a Roof Intersection with Valley Fill
Figure 2.18b Total Roof Truss System
69 List of Tables
70 Tables 2.1 – 2.5
Table 2.1 Lateral Framing Connection Loads from Wind
71 Table 2.2A Uplift Connection Loads from Wind
72 Table 2.2B Ridge Connection Loads from Wind
73 Table 2.2C Rake Overhang Outlooker Uplift Connection Loads
74 Table 2.3 Thrust Connection Loads
75 Table 2.4 Roof and Wall Sheathing Suction Loads
76 Table 2.5A Lateral Diaphragm Loads from Wind – Perpendicular to Ridge
77 Table 2.5B Lateral Diaphragm Loads from Wind – Parallel to Ridge – Roof and Floor
79 Table 2.5C Lateral Diaphragm Loads from Wind – Parallel to Ridge – Attic Floor or Ceiling
81 Tables 2.6 – 2.10
Table 2.6 L ateral Loads from Seismic
82 Table 2.7A Floor Joist Spans for 30 psf Live Load
83 Table 2.7B Floor Joist Spans for 40 psf Live Load
84 Table 2.7C Floor Joist Bearing Stresses for Floor Loads
85 Table 2.8A Floor Framing Capacity Requirements for 30 psf Live Load
86 Table 2.8B Floor Framing Capacity Requirements for 40 psf Live Load
88 Table 2.9A Exterior Wall Stud Bending Stresses from Wind Loads
90 Table 2.9B Exterior Wall Stud Compression Stresses
92 Table 2.9C Interior Loadbearing Wall Stud Compression Stresses from Live Loads
93 Table 2.10 Exterior Wall Induced Moments from Wind Loads
94 Tables 2.11 – 2.17
Table 2.11 Loadbearing Wall Loads from Snow or Live Loads
95 Table 2.12A1 Ceiling Joist Spans for 10 psf Live Load Flexible Finish
96 Table 2.12A2 Ceiling Joist Spans for 10 psf Live Load Brittle Finiah
97 Table 2.12B1 Ceiling Joist Spans for 20 psf Live Load Flexible Finish
98 Table 2.12B2 Ceiling Joist Spans for 20 psf Live Load Brittle Finish
99 Table 2.13A1 Ceiling Joist Framing Capacity Requirements for 10 psf Live Load
100 Table 2.13A2 Ceiling Joist Framing Capacity Requirements for 10 psf Live Load Brittle Finish
101 Table 2.13B1 Ceiling Joist Framing Capacity Requirements for 20 psf Live Load Flexible Finish
102 Table 2.13B2 Ceiling Joist Framing Capacity Requirements for 20 psf Live Load Brittle Finish
104 Table 2.14A Rafter Spans for 20 psf Live Load
107 Table 2.14B Rafter Spans for 30 psf Ground Snow Load
108 Table 2.14C Rafter Spans for 50 psf Ground Snow Load
109 Table 2.14D Rafter Spans for 70 psf Ground Snow Load
111 Table 2.15A Roof Framing Capacity Requirements for 20 psf Roof Live Load
114 Table 2.15B Roof Framing Capacity Requirements for 30 psf Ground Snow Load
115 Table 2.15C Roof Framing Capacity Requirements for 50 psf Ground Snow Load
116 Table 2.15D Roof Framing Capacity Requirements for 70 psf Ground Snow Load
118 Table 2.16 Ridge Beam Capacity Requirements for Interior Center Bearing Roof and Ceiling
119 Table 2.17 Hip and Valley Beam Capacity Requirements
121 Chapter 3 Prescriptive Design
122 Table 3 Prescriptive Design Limitations
123 3.1 General Provisions
124 3.2 Connections
127 3.3 Floor Systems
129 3.4 Wall Systems
131 3.5 Roof Systems
133 List of Figures
134 Figures 3.1 – 3.5
Figure 3.1a Determining the Mean Roof Height (MRH) and Top Plate to Roof Ridge Height
Figure 3.1b Method for Addressing Shear Wall Line Offsets
135 Figure 3.1c Shear Wall Offset
136 Figure 3.2a Sill Plate Anchorage to Concrete Foundation Wall
Figure 3.2b Sill Plate Anchorage to Masonry Foundation Wall
Figure 3.2c Bottom Plate Anchorage to Slab-on-Grade
137 Figure 3.2d Wall Assembly to Permanent Wood Foundation
Figure 3.2e Wall Assembly to Piles
138 Figure 3.2f Panel Attachment
Figure 3.2g Panel Splice Occurring over Horizontal Framing Members
139 Figure 3.2h Panel Splice Occurring across Studs
Figure 3.2i Sheathing Splice Plate (Alternative Detail)
140 Figure 3.2j Roof to Top Plate Connection Through Sheathing
Figure 3.2k Roof to Top Plate Uplift Connection
141 Figure 3.3a Solid Sawn Joist and Rafter Notching and Boring Limits
Figure 3.3b Stud Notching and Boring Limits
142 Figure 3.4a Joists Framing on a Solid Sawn Girder
Figure 3.4b Joists Framing on a Ledger
Figure 3.4c Joists Framing on a Steel Beam
143 Figure 3.4d Joist Framing on a Stud Wall
Figure 3.4e Joist Framing on a Foundation Sill Plate
Figure 3.4f Girder Bearing on a Concrete Wall
Figure 3.4g Cantilever Floor – 3D View
144 Figure 3.5a Loadbearing Wall Offset from Support
Figure 3.5b Double Joist Under a Non-Loadbearing Wall
Figure 3.5c Blocking Under a Non-Loadbearing Wall
Figure 3.5d Double Joist Under a Bathtub
145 Figures 3.6 – 3.12
Figure 3.6a Floor Opening – Stairway
Figure 3.6b Floor Opening – Stairway With Landing
146 Figure 3.7a Ceiling Bracing Gable Endwall
Figure 3.7b Floor Bracing Endwall
147 Figure 3.8a Corner Stud Hold-down Detail – 3 Studs With Blocking
Figure 3.8b Corner Stud Hold-down Detail – 4 Studs
Figure 3.8c Interior Stud Detail
Figure 3.8d Top Plate Intersection Detail
148 Figure 3.9a Studs and Headers Around Wall Openings
Figure 3.9b Studs and Headers Around Wall Openings – Bay Window
149 Figure 3.10a Ridge Beam Details
Figure 3.10b Ridge Board and Ceiling Joist Detail
Figure 3.10c Ridge Board and Rafter Tie Detail
150 Figure 3.11a Roof Openings – Chimney
Figure 3.11b Roof Openings – Gable Dormer
151 Figure 3.11c Roof Openings – Shed Dormer
152 Figure 3.12a Hip Roof Framing Detail
153 Figure 3.12b Valley Roof Framing Detail
Figure 3.12c Valley Beam Roof Framing Detail
154 List of Tables
157 Tables 3.1 – 3.5
Table 3.1 Nailing Schedule
158 Table 3.2 Sill or Bottom Plate to Foundation Connection Requirements for Wind – Exposure B
160 Table 3.2 Sill or Bottom Plate to Foundation Connection Requirements for Wind – Exposure C
163 Table 3.2A Sill Plate to Foundation Connections Resisting Shear Loads from Wind – Exposure B
164 Table 3.2A Sill Plate to Foundation Connections Resisting Shear Loads from Wind – Exposure C
166 Table 3.2B Bottom Plate to Foundation Connections (Anchor Bolts) Resisting Lateral and ShearLoads from Wind – Exposures B and C
Table 3.2C Sill or Bottom Plate to Foundation Connections (Anchor Bolts) Resisting Uplift Loads from Wind – Exposures B and C
167 Table 3.3 Sill Plate to Foundation Connection Shear Load for Seismic – GSL = 30
168 Table 3.3 Sill Plate to Foundation Connection Shear Load for Seismic – GSL = 50
169 Table 3.3 Sill Plate to Foundation Connection Shear Load for Seismic – GSL = 70
171 Table 3.3A1 1/2″ Anchor Bolts – Foundation Sill Plate Connection Resisting Shear Loads from Seismic – GSL = 30
172 Table 3.3A2 1/2″ Anchor Bolts – Foundation Sill Plate Connection Resisting Shear Loads from Seismic – GSL = 50
173 Table 3.3A3 1/2″ Anchor Bolts – Foundation Sill Plate Connection Resisting Shear Loads from Seismic – GSL = 70
174 Table 3.3A4 5/8″ Anchor Bolts – Foundation Sill Plate Connection Resisting Shear Loads from Seismic – GSL = 30
175 Table 3.3A5 5/8″ Anchor Bolts – Foundation Sill Plate Connection Resisting Shear Loads from Seismic – GSL = 50
176 Table 3.3A6 5/8″ Anchor Bolts – Foundation Sill Plate Connection Resisting Shear Loads from Seismic – GSL = 70
177 Table 3.3B Bottom Plate to Foundation Connections (Anchor Bolts) Resisting Shear from Seismic
178 Table 3.4 Rafter/ Truss Framing to Wall Connection Requirements for Wind Loads – Exposure B
180 Table 3.4 Rafter/ Truss Framing to Wall Connection Requirements for Wind Loads – Exposure C
182 Table 3.4A Rafter and/or Ceiling Joist to Top Plate Lateral and Shear Connection Requirements – Exposure B
183 Table 3.4A Rafter and/or Ceiling Joist to Top Plate Lateral and Shear Connection Requirements – Exposure C
184 Table 3.4B Shear Walls Resisting Uplift and Shear – Exposure B
185 Table 3.4B Shear Walls Resisting Uplift and Shear – Exposure C
186 Table 3.4C Rake Overhang Outlooker Uplift Connection Requirements – Exposure B
187 Table 3.4C Rake Overhang Outlooker Uplift Connection Requirements – Exposure C
188 Table 3.5 Top and Bottom Plate to Stud Lateral Connection Requirements for Wind Loads – Exposure B
189 Table 3.5 Top and Bottom Plate to Stud Lateral Connection Requirements for Wind Loads – Exposure C
190 Table 3.5A Top and Bottom Plate to Stud Lateral Connections for Wind Loads – Exposure B
191 Table 3.5A Top and Bottom Plate to Stud Lateral Connections for Wind Loads – Exposure C
192 Tables 3.6 – 3.15
Table 3.6 Ridge Connection Requirements for Wind – Exposure B
193 Table 3.6 Ridge Connection Requirements for Wind – Exposure C
194 Table 3.7 Header Connection Requirements for Wind – Exposure B
195 Table 3.7 Header Connection Requirements for Wind – Exposure C
196 Table 3.8 Window Sill Plate Connection Requirements for Wind – Exposure B
197 Table 3.8 Window Sill Plate Connection Requirements for Wind – Exposure C
198 Table 3.9 Rafter/ Ceiling Joist Heel Joint Connection Requirements
199 Table 3.9A Rafter/ Ceiling Joist Heel Joint Connection Requirements
200 Table 3.10 Roof Sheathing Attachment Requirements for Wind Loads – Exposure B
201 Table 3.10 Roof Sheathing Attachment Requirements for Wind Loads – Exposure C
202 Table 3.11 Wall Sheathing and Cladding Attachment Requirements for Wind Loads – Exposure B
203 Table 3.11 Wall Sheathing and Cladding Attachment Requirements for Wind Loads – Exposure C
204 Table 3.12A Roof Sheathing Requirements for Wind Loads – Exposure B
205 Table 3.12A Roof Sheathing Requirements for Wind Loads – Exposure C
206 Table 3.12B Maximum Roof Sheathing Spans for Roof Live and Snow Loads
207 Table 3.13A Wall Sheathing Requirements for Wind Loads – Exposure B
208 Table 3.13A Wall Sheathing Requirements for Wind Loads – Exposure C
209 Table 3.13B Wall Cladding Requirements for Wind Loads – Exposure B
Table 3.13B Wall Cladding Requirements for Wind Loads – Exposure C
210 Table 3.14 Maximum Floor Sheathing Spans for Live Loads
211 Table 3.15 Minimum Attic Floor/ Ceiling Length When Bracing Gable Endwall for Wind Loads – Exposure B
212 Table 3.15 Minimum Attic Floor/ Ceiling Length When Bracing Gable Endwall for Wind Loads – Exposure C
214 Tables 3.16 – 3.19
Table 3.16A1 Roof Diaphragm Limits for Wind – Exposure B – All Slopes
215 Table 3.16A2 Roof Diaphragm Limits for Wind – Exposure B – Low Slopes
216 Table 3.16A3 Roof Diaphragm Limits for Wind – Exposure C – All Slopes
217 Table 3.16A4 Roof Diaphragm Limits for Wind – Exposure C – Low Slopes
218 Table 3.16B Floor Diaphragm Limits for Wind – Exposure B
Table 3.16B Floor Diaphragm Limits for Wind – Exposure C
219 Table 3.16C1 Diaphragm Limits for Seismic – GSL = 30
220 Table 3.16C2 Diaphragm Limits for Seismic – GSL = 50
221 Table 3.16C3 Diaphragm Limits for Seismic – GSL = 70
223 Table 3.17A Segmented Shear Wall Sheathing Requirements for Wind – Exposure B
224 Table 3.17A Segmented Shear Wall Sheathing Requirements for Wind – Exposure C
226 Table 3.17C1 Segmented Shear Wall Sheathing Requirements for Seismic – GSL = 30
227 Table 3.17C2 Segmented Shear Wall Sheathing Requirements for Seismic – GSL = 50
228 Table 3.17C3 Segmented Shear Wall Sheathing Requirements for Seismic – GSL = 70
230 Table 3.17D Shear Wall Assembly Allowable Unit Shear Capacities, Maximum Shear Wall Segment Aspect Ratios, and Sheathing Type Adjustments
234 Table 3.17E Perforated Shear Wall Full Height Sheathing Adjustments
235 Table 3.17F Segmented and Perforated Shear Wall Hold-down Capacity Requirements
236 Table 3.18A Floor Joist Spans for Common Lumber Species – LL = 30 psf
237 Table 3.18B Floor Joist Spans for Common Lumber Species – LL = 40 psf
238 Table 3.19 Representative Metal Plate Connected Wood Floor Truss Spans
240 Tables 3.20 – 3.22
Table 3.20A1 Maximum Exterior Loadbearing and Non-loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 180 – Exposure B
242 Table 3.20A2 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 240 – Exposure B
244 Table 3.20A3 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 360 – Exposure B
246 Table 3.20A4 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 180 – Exposure C
248 Table 3.20A5 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 240 – Exposure C
250 Table 3.20A6 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 360 – Exposure C
254 Table 3.20B1 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 180 – Exposure B – 3/8″ WSP
256 Table 3.20B2 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 240 – Exposure B – 3/8″ WSP
258 Table 3.20B3 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 360 – Exposure B – 3/8″ WSP
260 Table 3.20B4 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 180 – Exposure C – 3/8″ WSP
262 Table 3.20B5 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 240 – Exposure C – 3/8″ WSP
264 Table 3.20B6 Maximum Exterior Loadbearing and Non-Loadbearing Stud Lengths for Common Lumber Species Resisting Interior Zone Wind Loads – Stud Deflection Limit = H/ 360 – Exposure C – 3/8″ WSP
266 Table 3.20C Size, Height, and Spacing Limits for Wood Studs
267 Table 3.21 Top Plate Requirements for Wind – Exposures B & C
268 Table 3.22A1 Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls – Supporting a Roof and Ceiling
269 Table 3.22A2 Laterally Supported (Raised) Header Spans for Exterior Loadbearing Walls – Supporting a Roof and Ceiling
270 Table 3.22B1 Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and One Center Bearing Floor
271 Table 3.22B2 Laterally Supported (Raised) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and One Center Bearing Floor
272 Table 3.22C1 Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and One Clear Span Floor
273 Table 3.22C2 Laterally Supported (Raised) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and One Clear Span Floor
274 Table 3.22D1 Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and Two Center Bearing Floors
275 Table 3.22D2 Laterally Supported (Raised) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and Two Center Bearing Floors
276 Table 3.22E1 Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and Two Clear Span Floors
277 Table 3.22E2 Laterally Supported (Raised) Header Spans for Exterior Loadbearing Walls – Supporting a Roof, Ceiling, and Two Clear Span Floors
278 Table 3.22F Jack Stud Requirements
279 Tables 3.23 – 3.29
Table 3.23A Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls Resisting Wind Loads – Exposure B
280 Table 3.23A Laterally Unsupported (Dropped) Header Spans for Exterior Loadbearing Walls Resisting Wind Loads – Exposure C
281 Table 3.23B Laterally Unsupported (Dropped) Header Spans for Exterior Non-Loadbearing Walls and Window Sill Plate Spans Resisting Wind Loads – Exposure B
Table 3.23B Laterally Unsupported (Dropped) Header Spans for Exterior Non-Loadbearing Walls and Window Sill Plate Spans Resisting Wind Loads – Exposure C
282 Table 3.23C Full Height Stud Requirements for Headers or Window Sill Plates in Exterior Walls Resisting Wind Loads – Exposures B & C
283 Table 3.23D Reduced Full Height Stud Requirements for Headers or Window Sill Plates in Exterior Walls Resisting Wind Loads – Exposures B & C
284 Table 3.24A Laterally Unsupported (Dropped) Header Spans for Interior Loadbearing Walls – Supporting One Center Bearing Floor
285 Table 3.24A Laterally Supported (Raised) Header Spans for Interior Loadbearing Walls – Supporting One Center Bearing Floor
286 Table 3.24B Laterally Unsupported (Dropped) Header Spans for Interior Loadbearing Walls – Supporting Two Center Bearing Floors
287 Table 3.24B Laterally Supported (Raised) Header Spans for Interior Loadbearing Walls – Supporting Two Center Bearing Floors
288 Table 3.24C Jack Stud Requirements (For Headers in Exterior Loadbearing Walls)
289 Table 3.25A1 Ceiling Joist Spans for Common Lumber Species – LL = 10 psf Flexible Finish
290 Table 3.25A2 Ceiling Joist Spans for Common Lumber Species – LL = 10 psf Brittle Finish
291 Table 3.25B1 Ceiling Joist Spans for Common Lumber Species – LL = 20 psf Flexible Finish
292 Table 3.25B2 Ceiling Joist Spans for Common Lumber Species – LL = 20 psf Brittle Finish
293 Table 3.26A Rafter Spans for Common Lumber Species – LL = 20 – L/Δ = 180
294 Table 3.26B Rafter Spans for Common Lumber Species – LL = 20 – L/Δ = 240 Flexible Finish
295 Table 3.26C Rafter Spans for Common Lumber Species – LL = 20 – L/Δ = 360 Brittle Finish
298 Table 3.26D Rafter Spans for Common Lumber Species – GSL = 30 – L/Δ = 180
299 Table 3.26E Rafter Spans for Common Lumber Species – GSL = 30 – L/Δ = 240 Flexible Finish
300 Table 3.26F Rafter Spans for Common Lumber Species – GSL = 50 – L/Δ = 360 Brittle Finish
301 Table 3.26G Rafter Spans for Common Lumber Species – GSL = 50 – L/Δ = 180
302 Table 3.26H Rafter Spans for Common Lumber Species – GSL = 70 – L/Δ = 240 Flexible Finish
303 Table 3.26I Rafter Spans for Common Lumber Species – GSL = 70 – L/Δ = 360 Brittle Finish
304 Table 3.26J Rafter Spans for Common Lumber Species – GSL = 70 – L/Δ = 180
305 Table 3.26K Rafter Spans for Common Lumber Species – GSL = 70 – L/Δ = 240 Flexible Finish
306 Table 3.26L Rafter Spans for Common Lumber Species – GSL = 70 – L/Δ = 360 Brittle Finish
308 Table 3.27 Representative Metal Plate Connected Wood Roof Truss Spans
309 Table 3.28 Hip and Valley Beam Sizes
310 Table 3.29 Ridge Beam Spans
311 List of Appendix A Wind Load Tables for Uplift Strap and Ridge Strap Connections
312 Table A-3.4 Uplift Strap Connection Requirements (Roof-to-Wall, Wall-to-Wall, and Wall-to Foundation) – Exposure B
313 Table A-3.4 Uplift Strap Connection Requirements (Roof-to-Wall, Wall-to-Wall, and Wall-to Foundation) – Exposure C
314 Table A-3.6 Ridge Tension Strap Connection Requirements for Wind – Exposure B
315 Table A-3.6 Ridge Tension Strap Connection Requirements for Wind – Exposure C
317 Supplement
318 Table S-1 Maximum Spans and Allowable Total Uniform Loads for Floor Sheathing
Table S-2A Maximum Spans and Allowable Total Uniform Loads (Bending and Shear) for Roof Sheathing for Normal Duration Loads
319 Table S-2B Maximum Spans and Allowable Total Uniform Loads (Deflection) for Roof Sheathing for Normal Duration Loads
Table S-3 ASD Unit Shear Capacity for Horizontal Diaphragm Assemblies Sheathed with Gypsum Wallboard
321 References
324 Back Cover
AWC WFCM 2015
$43.33