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It is a "Structural Shape" when at least one of its dimensions (length excluded) is 3 inches or greater.

The shapes listed in this section conform to ASTM A 36, a standard specification for structural steel.

ASTM Specification A 36

Stocked in Lengths up to 60'
Unit of Measure
1 2 

Size (A x B x C)

Estimated Weight per Foot

Estimated Weight 20-Ft. Length

Estimated Weight 30-Ft. Length

Estimated Weight 40-Ft. Length

Estimated Weight 60-Ft. Length

3 x 2 x 3/16 N/A 3.07 lb N/A 61 lb N/A 92 lb N/A 123 lb N/A 184
3 x 2 x 1/4 N/A 4.1 lb N/A 82 lb N/A 123 lb N/A 164 lb N/A 246
3 x 2 x 5/16 N/A 5.0 lb N/A 100 lb N/A 150 lb N/A 200 lb N/A 300
3 x 2 x 3/8 N/A 5.9 lb N/A 118 lb N/A 177 lb N/A 236 lb N/A 354
3 x 2 x 1/2 N/A 7.7 lb N/A 154 lb N/A 231 lb N/A 308 lb N/A 462
3 x 2 1/2 x 1/4 N/A 4.5 lb N/A 90 lb N/A 135 lb N/A 180 lb N/A 270
3 x 2 1/2 x 5/16 N/A 5.6 lb N/A 112 lb N/A 168 lb N/A 224 lb N/A 336
3 x 2 1/2 x 3/8 N/A 6.6 lb N/A 132 lb N/A 198 lb N/A 264 lb N/A 396
3 x 2 1/2 x 1/2 N/A 8.5 lb N/A 170 lb N/A 255 lb N/A 340 lb N/A 510
3 x 3 x 3/16 N/A 3.71 lb N/A 74 lb N/A 111 lb N/A 148 lb N/A 223
3 x 3 x 1/4 N/A 4.9 lb N/A 98 lb N/A 147 lb N/A 196 lb N/A 294
3 x 3 x 5/16 N/A 6.1 lb N/A 122 lb N/A 183 lb N/A 244 lb N/A 366
3 x 3 x 3/8 N/A 7.2 lb N/A 144 lb N/A 216 lb N/A 288 lb N/A 432
3 x 3 x 1/2 N/A 9.4 lb N/A 188 lb N/A 282 lb N/A 376 lb N/A 564
3 1/2 x 2 1/2 x 1/4 N/A 4.9 lb N/A 98 lb N/A 147 lb N/A 196 lb N/A 294
3 1/2 x 2 1/2 x 5/16 N/A 6.1 lb N/A 122 lb N/A 183 lb N/A 244 lb N/A 366
3 1/2 x 2 1/2 x 3/8 N/A 7.2 lb N/A 144 lb N/A 216 lb N/A 288 lb N/A 432
3 1/2 x 2 1/2 x 1/2 N/A 9.4 lb N/A 188 lb N/A 282 lb N/A 376 lb N/A 564
3 1/2 x 3 x 1/4 N/A 5.4 lb N/A 108 lb N/A 162 lb N/A 216 lb N/A 324
3 1/2 x 3 x 5/16 N/A 6.6 lb N/A 132 lb N/A 198 lb N/A 264 lb N/A 396
3 1/2 x 3 x 3/8 N/A 7.9 lb N/A 158 lb N/A 237 lb N/A 316 lb N/A 474
3 1/2 x 3 x 1/2 N/A 10.2 lb N/A 204 lb N/A 306 lb N/A 408 lb N/A 612
3 1/2 x 3 1/2 x 1/4 N/A 5.8 lb N/A 116 lb N/A 174 lb N/A 232 lb N/A 348
3 1/2 x 3 1/2 x 5/16 N/A 7.2 lb N/A 144 lb N/A 216 lb N/A 288 lb N/A 432
3 1/2 x 3 1/2 x 3/8 N/A 8.5 lb N/A 170 lb N/A 255 lb N/A 340 lb N/A 510
3 1/2 x 3 1/2 x 1/2 N/A 11.1 lb N/A 222 lb N/A 333 lb N/A 444 lb N/A 666
4 x 3 x 1/4 N/A 5.8 lb N/A 116 lb N/A 174 lb N/A 232 lb N/A 348
4 x 3 x 5/16 N/A 7.2 lb N/A 144 lb N/A 216 lb N/A 288 lb N/A 432
4 x 3 x 3/8 N/A 8.5 lb N/A 170 lb N/A 255 lb N/A 340 lb N/A 510
4 x 3 x 1/2 N/A 11.1 lb N/A 222 lb N/A 333 lb N/A 444 lb N/A 666
4 x 3 1/2 x 1/4 N/A 6.2 lb N/A 124 lb N/A 186 lb N/A 248 lb N/A 372
4 x 3 1/2 x 5/16 N/A 7.7 lb N/A 154 lb N/A 231 lb N/A 308 lb N/A 462
4 x 3 1/2 x 3/8 N/A 9.1 lb N/A 182 lb N/A 273 lb N/A 364 lb N/A 546
4 x 3 1/2 x 1/2 N/A 11.9 lb N/A 238 lb N/A 357 lb N/A 476 lb N/A 714
4 x 4 x 1/4 N/A 6.6 lb N/A 132 lb N/A 198 lb N/A 264 lb N/A 396
4 x 4 x 5/16 N/A 8.2 lb N/A 164 lb N/A 246 lb N/A 328 lb N/A 492
4 x 4 x 3/8 N/A 9.8 lb N/A 196 lb N/A 294 lb N/A 392 lb N/A 588
4 x 4 x 1/2 N/A 12.8 lb N/A 256 lb N/A 384 lb N/A 512 lb N/A 768
4 x 4 x 5/8 N/A 15.7 lb N/A 314 lb N/A 471 lb N/A 628 lb N/A 942
4 x 4 x 3/4 N/A 18.5 lb N/A 370 lb N/A 555 lb N/A 740 lb N/A 1110
5 x 3 x 1/4 N/A 6.6 lb N/A 132 lb N/A 198 lb N/A 264 lb N/A 396
5 x 3 x 5/16 N/A 8.2 lb N/A 164 lb N/A 246 lb N/A 328 lb N/A 492
5 x 3 x 3/8 N/A 9.8 lb N/A 196 lb N/A 294 lb N/A 392 lb N/A 588
5 x 3 x 1/2 N/A 12.8 lb N/A 256 lb N/A 384 lb N/A 512 lb N/A 768
5 x 3 1/2 x 1/4 N/A 7.0 lb N/A 140 lb N/A 210 lb N/A 280 lb N/A 420
5 x 3 1/2 x 5/16 N/A 8.7 lb N/A 174 lb N/A 261 lb N/A 348 lb N/A 522
5 x 3 1/2 x 3/8 N/A 10.4 lb N/A 208 lb N/A 312 lb N/A 416 lb N/A 624
5 x 3 1/2 x 1/2 N/A 13.6 lb N/A 272 lb N/A 408 lb N/A 544 lb N/A 816
5 x 3 1/2 x 5/8 N/A 16.8 lb N/A 336 lb N/A 504 lb N/A 672 lb N/A 1008
5 x 3 1/2 x 3/4 N/A 19.8 lb N/A 396 lb N/A 594 lb N/A 792 lb N/A 1188
Unit of Measure
1 2