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R609.5.1 Shearwall Lengths

2014 FBC - Residential, 5th edition > 6 Wall Construction > R609 Grouted Masonry > R609.5 Exterior Shearwalls > R609.5.1 Shearwall Lengths
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The required shearwall segment length shall be as set forth in Tables R609.5.1A through R609.5.1R as applicable.

TABLE R609.5.1A GRADE 60
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 4 REINFORCEMENT1,2,3,5 
ROOF ANGLE ≤ 23°
EXP Vasd AS
DETERMINED IN
ACCORDANCE WITH
SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.62 2.31 3.14 3.68 4.98 6.49 5.41 7.28 9.43
110 1.96 2.79 3.80 4.45 6.03 7.85 6.55 8.81 11.42
120 2.33 3.32 4.52 5.30 7.17 9.34 7.79 10.48 13.58
130 2.73 3.90 5.31 6.22 8.42 10.96 9.14 12.30 15.94
140 3.17 4.52 6.16 7.22 9.376 12.71 10.60 14.27 18.49
150 3.64 5.19 7.07 8.28 11.21 14.59 12.17 16.38 21.23
C 100 1.92 2.77 3.82 4.86 6.63 8.69 7.56 10.15 13.13
110 2.32 3.35 4.62 5.88 8.02 10.52 9.14 12.28 15.88
120 2.76 3.99 5.50 7.00 9.54 12.52 10.88 14.61 18.90
130 3.24 4.68 6.46 8.21 11.20 14.69 12.77 17.15 22.18
140 3.76 5.43 7.49 9.53 12.99 17.04 14.81 19.89 25.73
150 4.32 6.23 8.59 10.94 14.91 19.56 17.00 22.83 29.53
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 5 REINFORCEMENT1,2,3,5
ROOF ANGLE ≤ 23°
EXP Vasd AS DETERMINED IN
ACCORDANCE WITH
SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.09 1.55 2.12 2.48 3.35 4.37 3.64 4.90 6.35
110 1.32 1.88 2.56 3.00 4.06 5.28 4.41 5.93 7.68
120 1.57 2.23 3.05 3.57 4.83 6.29 5.24 7.06 9.14
130 1.84 2.62 3.57 4.19 5.67 7.38 6.16 8.28 10.73
140 2.13 3.04 4.15 4.86 6.57 8.56 7.14 9.60 12.45
150 2.45 3.49 4.76 5.58 7.54 9.82 8.19 11.02 14.29
C 100 1.29 1.86 2.57 3.27 4.46 5.85 5.09 6.83 8.84
110 1.56 2.26 3.11 3.96 5.40 7.08 6.16 8.26 10.69
120 1.86 2.68 3.70 4.71 6.42 8.43 7.33 9.84 12.72
130 2.18 3.15 4.35 5.53 7.54 9.89 8.60 11.54 14.93
140 2.53 3.65 5.04 6.41 8.74 11.47 9.97 13.39 17.32
150 2.91 4.19 5.79 7.36 10.04 13.17 11.45 15.37 19.88
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not one continuous shear wall segment, the total shear wall length required shall be increased by 0.67 feet (8 inches) (203 mm) for each additional shear wall segment making up the total shear wall length on a side.
  2. The minimum shear wall segment length shall be 2 feet-0 inches (610 mm). Values less than 2 feet-0 inches are shown only for summation of shear wall segments and for interpolation purposes. A grouted cell with vertical reinforcement of the size indicated is required at each end of every shear wall segment.
  3. Other than incidental utility penetrations, shearwall piers and shearwall segments shall not contain openings with a maximum horizontal or vertical dimension of 5 inches (127 mm) for piers and 12 inches (305 mm) for portions of shearwall segments above and below piers. The total area of openings in any one segment of shearwall shall not exceed 144 square inches (92 903 mm2).
  4. Required shearwall lengths normal (perpendicular) to the ridge are per lineal foot of building length. Multiply tabular values by building length distance between adjacent shear walls perpendicular to the ridge if interior shear walls are used for total shear wall length required.
  5. Shear wall lengths are based on shear wall segment heights of 80 inches (2032 mm) (height from the floor to the top of the highest opening adjacent to the shear segment—corners and openings as permitted by Note 3 of this table are not considered for the purpose of this measurement). For shear segment heights other than 80 inches (2032 mm), multiply tabular length values as follows:

    Segment Height (inches) Length Multiplier
    88 1.09
    96 1.19
    104 1.28
    112 1.37
TABLE R609.5.1B GRADE 60
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 4 REINFORCEMENT1,2,3,5
ROOF ANGLE 30°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.66 2.45 3.40 3.55 4.92 6.49 5.18 7.13 9.36
110 2.01 2.96 4.11 4.30 5.96 7.86 6.27 8.63 11.32
120 2.39 3.52 4.89 5.12 7.09 9.35 7.46 10.27 13.47
130 2.81 4.13 5.74 6.00 8.32 10.97 8.76 12.05 15.81
140 3.26 4.79 6.66 6.96 9.65 12.73 10.15 13.98 18.34
150 3.74 5.50 7.64 7.99 11.08 14.61 11.66 16.05 21.05
C 100 2.00 2.99 4.21 4.73 6.62 8.82 7.22 9.92 12.97
110 2.42 3.62 5.10 5.72 8.01 10.67 8.74 12.00 15.70
120 2.88 4.30 6.07 6.81 9.53 12.70 10.40 14.28 18.68
130 3.37 5.05 7.12 7.99 11.19 14.90 12.20 16.76 21.92
140 3.91 5.86 8.26 9.27 12.98 17.28 14.15 19.43 25.43
150 4.49 6.73 9.48 10.64 14.90 19.84 16.25 22.31 29.19
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 5 REINFORCEMENT1,2,3,5
ROOF ANGLE 30°
EXP Vasd AS DETERMINED IN ACCORDANCE WITH SECTION R301.2.1.3 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.12 1.65 2.29 2.39 3.31 4.37 3.49 4.80 6.30
110 1.35 1.99 2.77 2.89 4.01 5.29 4.22 5.81 7.62
120 1.61 2.37 3.29 3.44 4.77 6.29 5.02 6.91 9.07
130 1.89 2.78 3.86 4.04 5.60 7.39 5.89 8.11 10.64
140 2.19 3.23 4.48 4.69 6.50 8.57 6.84 9.41 12.34
150 2.52 3.71 5.14 5.38 7.46 9.83 7.85 10.80 14.17
C 100 1.34 2.01 2.84 3.18 4.46 5.93 4.86 6.67 8.73
110 1.63 2.44 3.43 3.85 5.39 7.18 5.88 8.08 10.57
120 1.94 2.90 4.08 4.58 6.42 8.55 7.00 9.61 12.57
130 2.27 3.40 4.79 5.38 7.53 10.03 8.21 11.28 14.76
140 2.63 3.94 5.56 6.24 8.74 11.63 9.53 13.08 17.12
150 3.02 4.53 6.38 7.16 10.03 13.35 10.94 15.02 19.65
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not one continuous shear wall segment, the total shear wall length required shall be increased by 0.67 feet (8 inches) (203 mm) for each additional shear wall segment making up the total shear wall length on a side.
  2. The minimum shear wall segment length shall be 2 feet-0 inches (610 mm). Values less than 2 feet-0 inches (610 mm) are shown only for summation of shear wall segments and for interpolation purposes. A grouted cell with vertical reinforcement of the size indicated is required at each end of every shear wall segment.
  3. Other than incidental utility penetrations, shearwall piers and shearwall segments shall not contain openings with a maximum horizontal or vertical dimension of 5 inches (127 mm) for piers and 12 inches (305 mm) for portions of shearwall segments above and below piers. The total area of openings in any one segment of shearwall shall not exceed 144 square inches (92 903 mm2).
  4. Required shearwall lengths normal (perpendicular) to the ridge are per lineal foot of building length. Multiply tabular values by building length distance between adjacent shear walls perpendicular to the ridge if interior shear walls are used for total shear wall length required.
  5. Shear wall lengths are based on shear wall segment heights of 80 inches (height from the floor to the top of the highest opening adjacent to the shear segment—corners and openings as permitted by Note 3 of this table are not considered for the purpose of this measurement). For shear segment heights other than 80 inches, multiply tabular length values as follows:

    Segment Height (inches) Length Multiplier
    88 1.0
    96 1.19
    104 1.28
    112 1.37
TABLE R609.5.1C GRADE 60
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 4 REINFORCEMENT1,2,3,5
ROOF ANGLE 45°
EXP Vasd AS DETERMINED IN ACCORDANCE WITH SECTION R301.2.1.3 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 2.11 3.24 4.64 2.11 5.72 7.73 5.77 8.17 11.00
110 2.56 3.92 5.61 4.85 6.92 9.36 6.98 9.89 13.31
120 3.05 4.67 6.68 5.77 8.23 11.13 8.31 11.77 15.85
130 3.57 5.48 7.84 6.77 9.66 13.07 9.75 13.81 18.60
140 4.15 6.35 9.09 7.85 11.20 15.16 11.31 16.02 21.57
150 4.76 7.29 10.43 9.01 12.86 17.40 12.98 18.39 24.76
C 100 2.63 4.13 6.03 5.45 7.90 10.84 7.22 9.92 12.97
110 3.18 4.99 7.30 6.60 9.56 13.12 8.74 12.00 15.70
120 3.79 5.94 8.68 7.85 11.38 15.61 10.40 14.28 18.68
130 4.45 6.97 10.19 9.21 13.35 18.32 12.20 16.76 21.92
140 5.16 8.09 11.82 10.68 15.48 21.25 14.15 19.43 25.43
150 5.92 9.28 13.57 12.26 17.77 24.39 16.25 22.31 29.19
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 5 REINFORCEMENT1,2,3,5
ROOF ANGLE 45°
EXP Vasd AS DETERMINED IN ACCORDANCE WITH SECTION R301.2.1.3 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.42 2.18 3.12 2.70 3.85 5.21 3.88 5.50 7.41
110 1.72 2.64 3.78 3.26 4.66 6.30 4.70 6.66 8.96
120 2.05 3.14 4.49 3.88 5.54 7.50 5.59 7.92 10.67
130 2.41 3.69 5.27 4.56 6.50 8.80 6.56 9.30 12.52
140 2.79 4.27 6.12 5.29 7.54 10.20 7.61 10.78 14.52
150 3.20 4.91 7.02 6.07 8.66 11.71 8.74 12.38 16.67
C 100 1.77 2.78 4.06 3.67 5.32 7.30 5.38 7.59 10.18
110 2.14 3.36 4.91 4.44 6.43 8.83 6.51 9.19 12.32
120 2.55 4.00 5.85 5.28 7.66 10.51 7.75 10.93 14.66
130 2.99 4.69 6.86 6.20 8.99 12.33 9.09 12.83 17.21
140 3.47 5.44 7.96 7.19 10.42 14.30 10.55 14.88 19.96
150 3.98 6.25 9.13 8.26 11.96 16.42 12.11 17.09 22.91
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not one continuous shear wall segment, the total shear wall length required shall be increased by 0.67 feet (8 inches) (203 mm) for each additional shear wall segment making up the total shear wall length on a side.
  2. The minimum shear wall segment length shall be 2 feet-0 inches (610 mm). Values less than 2 feet-0 (610 mm) inches are shown only for summation of shear wall segments and for interpolation purposes. A grouted cell with vertical reinforcement of the size indicated is required at each end of every shear wall segment.
  3. Other than incidental utility penetrations, shearwall piers and shearwall segments shall not contain openings with a maximum horizontal or vertical dimension of 5 inches (127 mm) for piers and 12 inches (305 mm) for portions of shearwall segments above and below piers. The total area of openings in any one segment of shearwall shall not exceed 144 square inches (92 903 mm2).
  4. Required shearwall lengths normal (perpendicular) to the ridge are per lineal foot of building length. Multiply tabular values by building length distance between adjacent shear walls perpendicular to the ridge if interior shear walls are used for total shear wall length required.
  5. Shear wall lengths are based on shear wall segment heights of 80 inches (2032 mm) (height from the floor to the top of the highest opening adjacent to the shear segment—corners and openings as permitted by Note 3 of this table are not considered for the purpose of this measurement). For shear segment heights other than 80 inches (2032 mm), multiply tabular length values as follows:

    Segment Height (inches) Length Multiplier
    88 1.09
    96 1.19
    104 1.28
    112 1.37
TABLE R609.5.1D GRADE 60
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 4 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 23°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.054 0.053 0.053 0.142 0.142 0.141 0.231 0.231 0.230
110 0.065 0.065 0.064 0.172 0.172 0.171 0.279 0.279 0.278
120 0.077 0.077 0.076 0.205 0.204 0.204 0.333 0.332 0.331
130 0.091 0.090 0.089 0.240 0.240 0.239 0.390 0.390 0.389
140 0.105 0.104 0.103 0.279 0.278 0.277 0.453 0.452 0.451
150 0.121 0.120 0.119 0.320 0.319 0.318 0.520 0.519 0.518
C 100 0.075 0.075 0.074 0.199 0.199 0.198 0.324 0.323 0.322
110 0.091 0.090 0.089 0.241 0.241 0.240 0.392 0.391 0.390
120 0.108 0.108 0.106 0.287 0.287 0.285 0.466 0.466 0.464
130 0.127 0.126 0.125 0.337 0.336 0.335 0.547 0.546 0.545
140 0.147 0.147 0.145 0.391 0.390 0.388 0.635 0.634 0.632
150 0.169 0.168 0.166 0.449 0.448 0.446 0.729 0.728 0.726
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 5 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 23°
EXP Vasd AS DETERMINED IN ACCORDANCE WITH SECTION R301.2.1.3 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.036 0.036 0.035 0.096 0.096 0.095 0.155 0.155 0.155
110 0.044 0.043 0.043 0.116 0.116 0.115 0.188 0.188 0.187
120 0.052 0.052 0.051 0.138 0.138 0.137 0.224 0.224 0.223
130 0.061 0.061 0.060 0.162 0.162 0.161 0.263 0.262 0.262
140 0.071 0.070 0.070 0.188 0.187 0.186 0.305 0.304 0.303
150 0.081 0.081 0.080 0.215 0.215 0.214 0.350 0.349 0.348
C 100 0.051 0.050 0.050 0.134 0.134 0.133 0.218 0.218 0.217
110 0.061 0.061 0.060 0.162 0.162 0.161 0.264 0.263 0.263
120 0.073 0.072 0.072 0.193 0.193 0.192 0.314 0.313 0.313
130 0.086 0.085 0.084 0.227 0.226 0.225 0.368 0.368 0.367
140 0.099 0.099 0.097 0.263 0.263 0.261 0.427 0.427 0.425
150 0.114 0.113 0.112 0.302 0.301 0.300 0.490 0.490 0.488
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not one continuous shear wall segment, the total shear wall length required shall be increased by 0.67 feet (8 inches) (203 mm) for each additional shear wall segment making up the total shear wall length on a side.
  2. The minimum shear wall segment length shall be 2 feet-0 inches (610 mm). Values less than 2 feet-0 inches (610 mm) are shown only for summation of shear wall segments and for interpolation purposes. A grouted cell with vertical reinforcement of the size indicated is required at each end of every shear wall segment.
  3. Other than incidental utility penetrations, shearwall piers and shearwall segments shall not contain openings with a maximum horizontal or vertical dimension of 5 inches (127 mm) for piers and 12 inches (305 mm) for portions of shearwall segments above and below piers. The total area of openings in any one segment of shearwall shall not exceed 144 square inches (92 903 mm2).
  4. Required shearwall lengths normal (perpendicular) to the ridge are per lineal foot of building length. Multiply tabular values by building length distance between adjacent shear walls perpendicular to the ridge if interior shear walls are used for total shear wall length required.
  5. Shear wall lengths are based on shear wall segment heights of 80 inches (2032 mm) (height from the floor to the top of the highest opening adjacent to the shear segment—corners and openings as permitted by Note 3 of this table are not considered for the purpose of this measurement). For shear segment heights other than 80 inches (2032 mm), multiply tabular length values as follows:

    Segment Height (inches) Length Multiplier
    88 1.09
    96 1.19
    104 1.28
    112 1.37
TABLE R609.5.1E GRADE 60
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 4 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 30°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.088 0.102 0.117 0.166 0.180 0.195 0.243 0.257 0.272
110 0.107 0.124 0.142 0.201 0.217 0.236 0.294 0.311 0.329
120 0.127 0.147 0.169 0.239 0.259 0.280 0.350 0.371 0.392
130 0.149 0.173 0.198 0.280 0.304 0.329 0.411 0.435 0.460
140 0.173 0.200 0.230 0.325 0.352 0.382 0.477 0.504 0.534
150 0.199 0.230 0.264 0.373 0.404 0.438 0.548 0.579 0.613
C 100 0.124 0.143 0.164 0.232 0.252 0.273 0.341 0.361 0.382
110 0.150 0.173 0.199 0.281 0.305 0.330 0.413 0.437 0.462
120 0.178 0.206 0.237 0.335 0.363 0.393 0.491 0.519 0.550
130 0.209 0.242 0.278 0.393 0.426 0.461 0.577 0.610 0.645
140 0.242 0.281 0.322 0.456 0.494 0.535 0.669 0.707 0.748
150 0.278 0.322 0.370 0.523 0.567 0.614 0.768 0.812 0.859
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 5 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 30°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.059 0.069 0.079 0.112 0.121 0.131 0.164 0.173 0.183
110 0.072 0.083 0.095 0.135 0.146 0.159 0.198 0.210 0.222
120 0.086 0.099 0.114 0.161 0.174 0.189 0.236 0.249 0.264
130 0.100 0.116 0.133 0.189 0.204 0.222 0.277 0.293 0.310
140 0.116 0.135 0.155 0.219 0.237 0.257 0.321 0.339 0.359
150 0.134 0.155 0.177 0.251 0.272 0.295 0.369 0.390 0.412
C 100 0.083 0.096 0.111 0.156 0.170 0.184 0.230 0.243 0.257
110 0.101 0.117 0.134 0.189 0.205 0.222 0.278 0.294 0.311
120 0.120 0.139 0.159 0.225 0.244 0.265 0.331 0.350 0.370
130 0.141 0.163 0.187 0.264 0.287 0.311 0.388 0.410 0.434
140 0.163 0.189 0.217 0.307 0.333 0.360 0.450 0.476 0.504
150 0.187 0.217 0.249 0.352 0.382 0.413 0.517 0.546 0.578
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not one continuous shear wall segment, the total shear wall length required shall be increased by 0.67 feet (8 inches) (203 mm) for each additional shear wall segment making up the total shear wall length on a side.
  2. The minimum shear wall segment length shall be 2 feet-0 inches (610 mm). Values less than 2 feet-0 inches (610 mm) are shown only for summation of shear wall segments and for interpolation purposes. A grouted cell with vertical reinforcement of the size indicated is required at each end of every shear wall segment.
  3. Other than incidental utility penetrations, shearwall piers and shearwall segments shall not contain openings with a maximum horizontal or vertical dimension of 5 inches (127 mm) for piers and 12 inches (305 mm) for portions of shearwall segments above and below piers. The total area of openings in any one segment of shearwall shall not exceed 144 square inches (92 903 mm2).
  4. Required shearwall lengths normal (perpendicular) to the ridge are per lineal foot of building length. Multiply tabular values by building length distance between adjacent shear walls perpendicular to the ridge if interior shear walls are used for total shear wall length required.
  5. Shear wall lengths are based on shear wall segment heights of 80 inches (2032 mm) (height from the floor to the top of the highest opening adjacent to the shear segment—corners and openings as permitted by Note 3 of this table are not considered for the purpose of this measurement). For shear segment heights other than 80 inches (2032 mm), multiply tabular length values as follows:

    Segment Height (inches) Length Multiplier
    88 1.09
    96 1.19
    104 1.28
    112 1.37
TABLE R609.5.1F GRADE 60
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 4 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 45°
EXP Vasd AS
DETERMINED
IN ACCORDANCE
WITH SECTION
R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.118 0.142 0.168 0.196 0.220 0.246 0.273 0.297 0.323
110 0.143 0.172 0.204 0.237 0.266 0.297 0.331 0.360 0.391
120 0.170 0.205 0.242 0.282 0.317 0.354 0.393 0.428 0.466
130 0.200 0.241 0.284 0.331 0.372 0.415 0.462 0.503 0.546
140 0.232 0.279 0.330 0.384 0.431 0.482 0.536 0.583 0.634
150 0.266 0.320 0.378 0.440 0.495 0.553 0.615 0.669 0.727
C 100 0.166 0.200 0.236 0.274 0.308 0.345 0.383 0.417 0.453
110 0.200 0.241 0.285 0.332 0.373 0.417 0.464 0.505 0.549
120 0.239 0.287 0.340 0.395 0.444 0.496 0.552 0.600 0.653
130 0.280 0.337 0.399 0.464 0.521 0.582 0.647 0.705 0.766
140 0.325 0.391 0.462 0.538 0.604 0.675 0.751 0.817 0.888
150 0.373 0.449 0.531 0.617 0.694 0.775 0.862 0.938 1.020
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO.5 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 45°
EXP Vasd AS
DETERMINED
IN ACCORDANCE
WITH SECTION
R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.080 0.096 0.113 0.132 0.148 0.165 0.184 0.200 0.218
110 0.096 0.116 0.137 0.159 0.179 0.200 0.223 0.242 0.263
120 0.115 0.138 0.163 0.190 0.213 0.238 0.265 0.288 0.313
130 0.134 0.162 0.191 0.223 0.250 0.280 0.311 0.338 0.368
140 0.156 0.188 0.222 0.258 0.290 0.324 0.361 0.392 0.427
150 0.179 0.216 0.255 0.296 0.333 0.372 0.414 0.450 0.490
C 100 0.111 0.134 0.159 0.185 0.208 0.232 0.258 0.281 0.305
110 0.135 0.163 0.192 0.223 0.251 0.281 0.312 0.340 0.369
120 0.161 0.193 0.229 0.266 0.299 0.334 0.371 0.404 0.439
130 0.188 0.227 0.268 0.312 0.351 0.392 0.436 0.474 0.516
140 0.219 0.263 0.311 0.362 0.407 0.455 0.505 0.550 0.598
150 0.251 0.302 0.357 0.416 0.467 0.522 0.580 0.632 0.687
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not one continuous shear wall segment, the total shear wall length required shall be increased by 0.67 feet (8 inches) (203 mm) for each additional shear wall segment making up the total shear wall length on a side.
  2. The minimum shear wall segment length shall be 2 feet-0 inches (610 mm). Values less than 2 feet-0 inches (610 mm) are shown only for summation of shear wall segments and for interpolation purposes. A grouted cell with vertical reinforcement of the size indicated is required at each end of every shear wall segment.
  3. Other than incidental utility penetrations, shear wall piers and shear wall segments shall not contain openings with a maximum horizontal or vertical dimension of 5 inches (127 mm) for piers and 12 inches (305 mm) for portions of shear wall segments above and below piers. The total area of openings in any one segment of shear wall shall not exceed 144 square inches (92 903 mm2).
  4. Required shear wall lengths normal (perpendicular) to the ridge are per lineal foot of building length. Multiply tabular values by building length distance between adjacent shear walls perpendicular to the ridge if interior shear walls are used for total shear wall length required.
  5. Shear wall lengths are based on shear wall segment heights of 80 inches (2032 mm) (height from the floor to the top of the highest opening adjacent to the shear segment—corners and openings as permitted by Note 3 of this table are not considered for the purpose of this measurement). For shear segment heights other than 80 inches (2032 mm), multiply tabular length values as follows:

    Segment Height (inches) Length Multiplier
    88 1.09
    96 1.19
    104 1.28
    112 1.37
TABLE R609.5.1G GRADE 40
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 4 REINFORCEMENT1,2,3,5
ROOF ANGLE ≤ 23°
EXP Vasd AS
DETERMINED
IN ACCORDANCE
WITH SECTION
R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 2.32 3.31 4.51 5.29 7.15 9.31 7.77 10.45 13.55
110 2.81 4.01 5.46 6.40 8.65 11.27 9.40 12.65 16.39
120 3.35 4.77 6.50 7.61 10.30 13.41 11.19 15.05 19.51
130 3.93 5.59 7.63 8.94 12.09 15.74 13.13 17.67 22.90
140 4.55 6.49 8.84 10.36 14.02 18.26 15.23 20.49 26.56
150 5.23 7.45 10.15 11.90 16.09 20.96 17.48 23.52 30.48
C 100 2.75 3.98 5.49 6.98 9.52 12.49 10.85 14.57 18.85
110 3.33 4.81 6.64 8.45 11.52 15.11 13.13 17.63 22.81
120 3.97 5.73 7.90 10.05 13.70 17.98 15.63 20.98 27.14
130 4.66 6.72 9.27 11.80 16.08 21.10 18.34 24.63 31.86
140 5.40 7.79 10.75 13.68 18.65 24.47 21.27 28.56 36.95
150 6.20 8.95 12.34 15.71 21.41 28.10 24.42 32.79 42.41
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length required.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1H GRADE 40
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO.5 REINFORCEMENT1,2,3,6
ROOF ANGLE ≤ 23°
EXP Vasd AS
DETERMINED
IN ACCORDANCE
WITH SECTION
R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.59 2.26 3.08 3.61 4.88 6.36 5.30 7.14 9.25
110 1.92 2.73 3.73 4.37 5.91 7.69 6.42 8.63 11.19
120 2.28 3.25 4.44 5.20 7.03 9.16 7.64 10.28 13.32
130 2.68 3.82 5.21 6.10 8.25 10.75 8.96 12.06 15.63
140 3.11 4.43 6.04 7.07 9.57 12.46 10.40 13.99 18.13
150 3.57 5.08 6.93 8.12 10.99 14.31 11.93 16.06 20.81
C 100 1.88 2.71 3.75 4.77 6.50 8.52 7.41 9.95 12.87
110 2.28 3.28 4.53 5.77 7.86 10.31 8.96 12.04 15.57
120 2.71 3.91 5.39 6.86 9.36 12.28 10.67 14.32 18.53
130 3.18 4.59 6.33 8.05 10.98 14.41 12.52 16.81 21.75
140 3.69 5.32 7.34 9.34 12.73 16.71 14.52 19.50 25.22
150 4.23 6.11 8.43 10.72 14.62 19.18 16.67 22.38 28.95
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length required.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).

TABLE R609.5.1I GRADE 40
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 4 REINFORCEMENT1,2,3,5
ROOF ANGLE 30°
EXP Vasd AS
DETERMINED
IN ACCORDANCE
WITH SECTION
R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 2.39 3.51 4.88 5.10 7.07 9.32 7.44 10.24 13.44
110 2.89 4.25 5.90 6.17 8.55 11.28 9.00 12.39 16.26
120 3.43 5.06 7.02 7.35 10.18 13.43 10.71 14.75 19.35
130 4.03 5.94 8.24 8.62 11.95 15.76 12.57 17.31 22.71
140 4.67 6.89 9.56 10.00 13.86 18.28 14.58 20.08 26.34
150 5.37 7.90 10.98 11.48 15.91 20.98 16.74 23.05 30.23
C 100 2.87 4.29 6.05 6.79 9.51 12.66 10.37 14.24 18.63
110 3.47 5.19 7.32 8.22 11.51 15.32 12.55 17.23 22.54
120 4.13 6.18 8.71 9.78 13.69 18.23 14.93 20.51 26.83
130 4.85 7.26 10.23 11.48 16.07 21.40 17.53 24.06 31.49
140 5.62 8.41 11.86 13.31 18.64 24.82 20.33 27.91 36.52
150 6.45 9.66 13.62 15.28 21.39 28.49 23.33 32.04 41.92
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length required.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1J GRADE 40
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO.5 REINFORCEMENT1,2,3,6
ROOF ANGLE 30°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 1.63 2.40 3.33 3.48 4.83 6.37 5.08 6.99 9.17
110 1.97 2.90 4.03 4.21 5.84 7.70 6.15 8.46 11.10
120 2.34 3.45 4.80 5.02 6.95 9.17 7.31 10.07 13.21
130 2.75 4.05 5.63 5.89 8.16 10.76 8.58 11.82 15.50
140 3.19 4.70 6.53 6.83 9.46 12.48 9.96 13.71 17.98
150 3.66 5.40 7.49 7.84 10.86 14.32 11.43 15.73 20.64
C 100 1.96 2.93 4.13 4.64 6.49 8.64 7.08 9.72 12.72
110 2.37 3.55 5.00 5.61 7.85 10.46 8.57 11.76 15.39
120 2.82 4.22 5.95 6.68 9.35 12.45 10.19 14.00 18.31
130 3.31 4.95 6.98 7.84 10.97 14.61 11.96 16.43 21.49
140 3.84 5.74 8.10 9.09 12.72 16.94 13.88 19.05 24.93
150 4.41 6.59 9.29 10.43 14.61 19.45 15.93 21.87 28.62
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (610 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length required.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1K GRADE 40
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO. 4 REINFORCEMENT1,2,3,5
ROOF ANGLE 45°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 3.04 4.65 6.66 3.04 8.21 11.11 8.28 11.74 15.80
110 3.68 5.63 8.06 6.96 9.93 13.44 10.02 14.20 19.12
120 4.37 6.70 9.59 8.29 11.82 15.99 11.93 16.90 22.76
130 5.13 7.86 11.25 9.72 13.87 18.77 14.00 19.84 26.71
140 5.95 9.12 13.05 11.28 16.09 21.77 16.24 23.01 30.97
150 6.83 10.47 14.98 12.95 18.47 24.99 18.64 26.41 35.56
C 100 3.78 5.93 8.66 7.83 11.34 15.57 10.37 14.24 18.63
110 4.57 7.17 10.48 9.47 13.73 18.84 12.55 17.23 22.54
120 5.44 8.53 12.47 11.27 16.34 22.42 14.93 20.51 26.83
130 6.39 10.01 14.64 13.23 19.17 26.31 17.53 24.06 31.49
140 7.41 11.61 16.98 15.34 22.24 30.52 20.33 27.91 36.52
150 8.50 13.33 19.49 17.61 25.53 35.03 23.33 32.04 41.92
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall required.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1L GRADE 40
REQUIRED SHEARWALL LENGTH PARALLEL TO RIDGE NO.5 REINFORCEMENT1,2,3,6
ROOF ANGLE 45°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 2.07 3.18 4.55 3.93 5.60 7.58 5.66 8.01 10.79
110 2.51 3.84 5.50 4.75 6.78 9.17 6.84 9.70 13.05
120 2.99 4.57 6.55 5.66 8.07 10.92 8.14 11.54 15.54
130 3.50 5.37 7.68 6.64 9.47 12.81 9.56 13.54 18.23
140 4.06 6.23 8.91 7.70 10.99 14.86 11.08 15.71 21.15
150 4.67 7.15 10.23 8.84 12.61 17.06 12.72 18.03 24.27
C 100 2.58 4.05 5.91 5.34 7.74 10.63 7.84 11.06 14.83
110 3.12 4.89 7.15 6.47 9.37 12.86 9.48 13.38 17.94
120 3.71 5.83 8.51 7.69 11.15 15.31 11.29 15.93 21.36
130 4.36 6.84 9.99 9.03 13.09 17.96 13.25 18.69 25.06
140 5.06 7.93 11.59 10.47 15.18 20.83 15.36 21.68 29.07
150 5.80 9.10 13.30 12.02 17.43 23.92 17.63 24.88 33.37
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1M GRADE 40
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 4 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE ≤ 23°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.077 0.077 0.076 0.204 0.204 0.203 0.332 0.331 0.330
110 0.093 0.093 0.092 0.247 0.247 0.246 0.401 0.401 0.400
120 0.111 0.110 0.109 0.294 0.294 0.292 0.478 0.477 0.476
130 0.130 0.129 0.128 0.345 0.345 0.343 0.561 0.560 0.558
140 0.151 0.150 0.148 0.400 0.400 0.398 0.650 0.649 0.647
150 0.173 0.172 0.170 0.460 0.459 0.457 0.746 0.745 0.743
C 100 0.108 0.107 0.106 0.286 0.286 0.285 0.465 0.464 0.463
110 0.131 0.130 0.128 0.347 0.346 0.344 0.563 0.562 0.560
120 0.155 0.155 0.153 0.413 0.412 0.410 0.670 0.669 0.667
130 0.182 0.181 0.179 0.484 0.483 0.481 0.786 0.785 0.783
140 0.212 0.210 0.208 0.562 0.560 0.558 0.911 0.910 0.908
150 0.243 0.242 0.239 0.645 0.643 0.640 1.046 1.045 1.042
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1N GRADE 40
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO.5 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,6
ROOF ANGLE ≤ 23°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.053 0.052 0.052 0.139 0.139 0.139 0.226 0.226 0.226
110 0.064 0.063 0.063 0.169 0.168 0.168 0.274 0.274 0.273
120 0.076 0.075 0.074 0.201 0.200 0.200 0.326 0.326 0.325
130 0.089 0.088 0.087 0.236 0.235 0.234 0.383 0.382 0.381
140 0.103 0.102 0.101 0.273 0.273 0.272 0.444 0.443 0.442
150 0.118 0.118 0.116 0.314 0.313 0.312 0.509 0.509 0.507
C 100 0.074 0.073 0.072 0.196 0.195 0.194 0.317 0.317 0.316
110 0.089 0.089 0.088 0.237 0.236 0.235 0.384 0.384 0.383
120 0.106 0.106 0.104 0.282 0.281 0.280 0.457 0.457 0.455
130 0.125 0.124 0.122 0.331 0.330 0.328 0.536 0.536 0.534
140 0.144 0.144 0.142 0.383 0.383 0.381 0.622 0.621 0.620
150 0.166 0.165 0.163 0.440 0.439 0.437 0.714 0.713 0.711
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1O GRADE 40
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 4 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 30°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.127 0.147 0.168 0.238 0.258 0.280 0.349 0.370 0.391
110 0.153 0.178 0.204 0.288 0.312 0.338 0.423 0.447 0.473
120 0.182 0.211 0.242 0.343 0.372 0.403 0.503 0.532 0.563
130 0.214 0.248 0.284 0.402 0.436 0.473 0.591 0.624 0.661
140 0.248 0.288 0.330 0.467 0.506 0.548 0.685 0.724 0.766
150 0.285 0.330 0.379 0.536 0.581 0.629 0.786 0.831 0.880
C 100 0.178 0.206 0.236 0.334 0.362 0.392 0.490 0.518 0.548
110 0.215 0.249 0.285 0.404 0.438 0.474 0.593 0.627 0.663
120 0.256 0.296 0.340 0.481 0.521 0.565 0.706 0.746 0.789
130 0.300 0.348 0.399 0.564 0.612 0.663 0.828 0.876 0.926
140 0.348 0.403 0.462 0.654 0.709 0.768 0.960 1.015 1.074
150 0.400 0.463 0.531 0.751 0.814 0.882 1.102 1.166 1.233
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1P GRADE 40
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO.5 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,6
ROOF ANGLE 30°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR 2ND STORY OF 3 STORY 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.087 0.100 0.115 0.163 0.176 0.191 0.239 0.252 0.267
110 0.105 0.121 0.139 0.197 0.213 0.231 0.289 0.305 0.323
120 0.125 0.144 0.165 0.234 0.254 0.275 0.344 0.363 0.384
130 0.146 0.169 0.194 0.275 0.298 0.323 0.403 0.426 0.451
140 0.170 0.196 0.225 0.319 0.345 0.374 0.468 0.494 0.523
150 0.195 0.225 0.258 0.366 0.397 0.430 0.537 0.568 0.601
C 100 0.121 0.140 0.161 0.228 0.247 0.268 0.334 0.354 0.374
110 0.147 0.170 0.195 0.276 0.299 0.324 0.405 0.428 0.453
120 0.175 0.202 0.232 0.328 0.356 0.385 0.482 0.509 0.539
130 0.205 0.237 0.272 0.385 0.418 0.452 0.565 0.598 0.632
140 0.238 0.275 0.316 0.447 0.484 0.525 0.656 0.693 0.734
150 0.273 0.316 0.362 0.513 0.556 0.602 0.753 0.796 0.842
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1Q GRADE 40
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO. 4 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,5
ROOF ANGLE 45°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.170 0.204 0.242 0.281 0.316 0.353 0.392 0.427 0.464
110 0.205 0.247 0.292 0.340 0.382 0.427 0.475 0.517 0.562
120 0.244 0.294 0.348 0.405 0.455 0.508 0.565 0.615 0.669
130 0.287 0.345 0.408 0.475 0.534 0.597 0.663 0.722 0.785
140 0.333 0.401 0.474 0.551 0.619 0.692 0.769 0.837 0.910
150 0.382 0.460 0.544 0.632 0.710 0.794 0.883 0.961 1.045
C 100 0.238 0.287 0.339 0.394 0.443 0.495 0.550 0.599 0.651
110 0.288 0.347 0.410 0.477 0.536 0.599 0.666 0.725 0.788
120 0.343 0.413 0.488 0.567 0.637 0.713 0.792 0.862 0.937
130 0.402 0.484 0.572 0.666 0.748 0.836 0.930 1.012 1.100
140 0.466 0.562 0.664 0.772 0.868 0.970 1.078 1.174 1.276
150 0.535 0.645 0.762 0.887 0.996 1.113 1.238 1.347 1.465
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
TABLE R609.5.1R GRADE 40
REQUIRED SHEARWALL LENGTH PERPENDICULAR TO RIDGE NO.5 REINFORCEMENT PER FOOT OF BUILDING LENGTH1,2,3,4,6
ROOF ANGLE 45°
EXP Vasd AS DETERMINED
IN ACCORDANCE WITH SECTION R301.2.1.3		 TOP STORY 1ST STORY OF 2 STORY OR
2ND STORY OF 3 STORY		 1ST STORY OF 3 STORY
BUILDING WIDTH BUILDING WIDTH BUILDING WIDTH
24 32 40 24 32 40 24 32 40
B 100 0.116 0.140 0.165 0.192 0.216 0.241 0.268 0.292 0.317
110 0.140 0.169 0.200 0.232 0.261 0.292 0.324 0.353 0.384
120 0.167 0.201 0.237 0.276 0.310 0.347 0.386 0.420 0.456
130 0.196 0.236 0.279 0.324 0.364 0.407 0.453 0.493 0.536
140 0.227 0.273 0.323 0.376 0.422 0.472 0.525 0.572 0.621
150 0.261 0.314 0.371 0.432 0.485 0.542 0.603 0.656 0.713
C 100 0.162 0.196 0.231 0.269 0.302 0.338 0.376 0.409 0.444
110 0.196 0.237 0.280 0.325 0.366 0.409 0.454 0.495 0.538
120 0.234 0.282 0.333 0.387 0.435 0.486 0.541 0.589 0.640
130 0.274 0.331 0.391 0.455 0.511 0.571 0.635 0.691 0.751
140 0.318 0.383 0.453 0.527 0.592 0.662 0.736 0.801 0.871
150 0.365 0.440 0.520 0.605 0.680 0.760 0.845 0.920 1.000
Notes:
  1. The cumulative shear wall segment length for each side of the building shall be equal to or greater than the tabular shear wall length required. If the required shear wall segment length provided is not continuous the total shear wall length required shall be increased by 8 inches (203 mm) for each additional shear wall segment on a side.
  2. Minimum shear wall segment length shall be 2 feet-0 inches (610 mm). A grouted cell with reinforcing steel shall be provided at each end of every shear wall segment. A minimum length of 24 inches (610 mm) of solid wall segment, extending the full height of each wall, shall be provided at exterior corners of exterior walls. A fully grouted cell with reinforcing steel shall be provided at each end of every shear wall segment.
  3. Portions of walls with openings shall not be considered part of the shear wall length.
  4. Required shearwall lengths perpendicular to the ridge are per lineal foot of building length. Multiply tabular values by building length for total shear wall length.
  5. Shearwall lengths for No. 4 reinforcement are based on shearwall segment height of 80 inches (2032 mm) and shearwall segment length of 24 inches (610 mm).
  6. Shearwall lengths for No. 5 reinforcement are based on shearwall segment height of 96 inches (2438 mm) and shearwall segment length of 24 inches (610 mm).
Upcodes Diagrams

Related Code Sections

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