Steel Joist Manual

LRFD
TOP CHORD EXTENSION LOAD TABLE (S TYPE)
Based on a Maximum Yield Strength of 50 ksi
Pounds per Linear Foot
"S" "I"
LENGTH (L1)
TYPE (in. 3 ) (in. 4 ) 0'-6" 1'-0" 1'-6" 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6"
S1 0.099 0.088 825 544 267 157
550 363 127 58
S2 0.127 0.138 825 700 343 202
550 422 200 91
S3 0.144 0.156 825 793 388 229
550 550 226 104
S4 0.160 0.172 825 825 432 255 168
550 550 249 113 60
S5 0.176 0.188 825 825 474 280 184
550 550 272 124 66
S6 0.192 0.204 825 825 517 306 202
550 550 295 134 72
S7 0.241 0.306 825 825 649 384 253 180
550 550 443 201 108 64
S8 0.266 0.332 825 825 717 424 280 198
550 550 481 219 117 70
S9 0.288 0.358 825 825 777 459 303 214 160
550 550 519 236 126 75 48
S10 0.380 0.544 825 825 825 606 400 283 211 163
550 550 550 359 192 115 74 50
S11 0.438 0.622 825 825 825 699 460 327 243 189 150
550 550 550 410 220 131 84 57 41
S12 0.494 0.696 825 825 825 789 520 369 274 213 169
550 550 550 459 246 147 94 64 45
LRFD
TOP CHORD EXTENSION LOAD TABLE (R TYPE)
Based on a Maximum Yield Strength of 50 ksi
Pounds per Linear Foot
"S" "I"
LENGTH (L1)
TYPE (in.3) (in.4) 0'-6" 1'-0" 1'-6" 2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0"
R1 0.895 1.119 825 825 825 825 825 669 498 385 307 250 208 175
550 550 550 550 396 236 152 103 73 54 41 32
R2 0.923 1.157 825 825 825 825 825 690 514 399 318 259 216 181
550 550 550 550 409 244 157 107 76 56 42 33
R3 1.039 1.299 825 825 825 825 825 777 579 448 358 292 243 205
550 550 550 550 459 274 176 120 85 63 47 37
R4 1.147 1.433 825 825 825 825 825 825 639 495 394 321 267 225
550 550 550 550 507 302 195 132 94 69 52 41
R5 1.249 1.561 825 825 825 825 825 825 696 538 429 349 291 246
550 550 550 550 550 329 212 144 103 75 57 44
R6 1.352 1.690 825 825 825 825 825 825 753 583 465 379 315 265
550 550 550 550 550 357 230 156 111 82 62 48
R7 1.422 1.802 825 825 825 825 825 825 792 613 489 399 331 279
550 550 550 550 550 380 245 167 119 87 66 51
R8 1.558 1.948 825 825 825 825 825 825 825 672 535 436 363 306
550 550 550 550 550 411 265 180 128 94 71 55
R9 1.673 2.091 825 825 825 825 825 825 825 721 576 469 390 328
550 550 550 550 550 442 284 194 138 101 77 59
R10 1.931 2.414 825 825 825 825 825 825 825 825 664 541 450 379
550 550 550 550 550 510 328 224 159 117 89 69
R11 2.183 2.729 825 825 825 825 825 825 825 825 751 612 508 430
550 550 550 550 550 550 371 253 180 132 100 78
R12 2.413 3.016 825 825 825 825 825 825 825 825 825 676 562 475
550 550 550 550 550 550 410 279 199 146 111 86
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