StructureCalcsSquare HSS sections — AISC Shapes Database v15.0
Square HSS give equal stiffness both ways with flat faces for simple welded connections — a standard column and brace choice in US practice.
| Designation | Mass kg/m | Depth mm |
|---|---|---|
| HSS2X2X1/8 | 4.5 | 50.8 |
| HSS2X2X3/16 | 6.4 | 50.8 |
| HSS3X3X1/8 | 7.1 | 76.2 |
| HSS2X2X1/4 | 8.1 | 50.8 |
| HSS2-1/2X2-1/2X3/16 | 8.3 | 63.5 |
| HSS4X4X1/8 | 9.6 | 101.6 |
| HSS3X3X3/16 | 10.2 | 76.2 |
| HSS2-1/2X2-1/2X1/4 | 10.6 | 63.5 |
| HSS5X5X1/8 | 12.1 | 127.0 |
| HSS2-1/2X2-1/2X5/16 | 12.6 | 63.5 |
| HSS3X3X1/4 | 13.1 | 76.2 |
| HSS4X4X3/16 | 14.0 | 101.6 |
| HSS6X6X1/8 | 14.7 | 152.4 |
| HSS3X3X5/16 | 15.7 | 76.2 |
| HSS7X7X1/8 | 17.2 | 177.8 |
| HSS5X5X3/16 | 17.8 | 127.0 |
| HSS3X3X3/8 | 18.1 | 76.2 |
| HSS4X4X1/4 | 18.2 | 101.6 |
| HSS8X8X1/8 | 19.7 | 203.2 |
| HSS6X6X3/16 | 21.6 | 152.4 |
| HSS4X4X5/16 | 22.1 | 101.6 |
| HSS9X9X1/8 | 22.3 | 228.6 |
| HSS5X5X1/4 | 23.3 | 127.0 |
| HSS7X7X3/16 | 25.4 | 177.8 |
| HSS4X4X3/8 | 25.7 | 101.6 |
| HSS6X6X1/4 | 28.3 | 152.4 |
| HSS5X5X5/16 | 28.4 | 127.0 |
| HSS8X8X3/16 | 29.2 | 203.2 |
| HSS4X4X1/2 | 32.2 | 101.6 |
| HSS9X9X3/16 | 33.0 | 228.6 |
| HSS5X5X3/8 | 33.3 | 127.0 |
| HSS7X7X1/4 | 33.4 | 177.8 |
| HSS6X6X5/16 | 34.7 | 152.4 |
| HSS10X10X3/16 | 36.8 | 254.0 |
| HSS8X8X1/4 | 38.4 | 203.2 |
| HSS6X6X3/8 | 40.9 | 152.4 |
| HSS7X7X5/16 | 41.1 | 177.8 |
| HSS5X5X1/2 | 42.3 | 127.0 |
| HSS9X9X1/4 | 43.5 | 228.6 |
| HSS12X12X3/16 | 44.4 | 304.8 |
| HSS8X8X5/16 | 47.4 | 203.2 |
| HSS7X7X3/8 | 48.5 | 177.8 |
| HSS10X10X1/4 | 48.6 | 254.0 |
| HSS6X6X1/2 | 52.4 | 152.4 |
| HSS9X9X5/16 | 53.7 | 228.6 |
| HSS8X8X3/8 | 56.1 | 203.2 |
| HSS12X12X1/4 | 58.7 | 304.8 |
| HSS10X10X5/16 | 60.1 | 254.0 |
| HSS7X7X1/2 | 62.6 | 177.8 |
| HSS6X6X5/8 | 63.0 | 152.4 |
| HSS9X9X3/8 | 63.7 | 228.6 |
| HSS10X10X3/8 | 71.3 | 254.0 |
| HSS8X8X1/2 | 72.7 | 203.2 |
| HSS12X12X5/16 | 72.7 | 304.8 |
| HSS7X7X5/8 | 75.6 | 177.8 |
| HSS9X9X1/2 | 82.8 | 228.6 |
| HSS14X14X5/16 | 85.4 | 355.6 |
| HSS12X12X3/8 | 86.5 | 304.8 |
| HSS8X8X5/8 | 88.3 | 203.2 |
| HSS10X10X1/2 | 93.0 | 254.0 |
| HSS16X16X5/16 | 98.0 | 406.4 |
| HSS9X9X5/8 | 100.9 | 228.6 |
| HSS14X14X3/8 | 101.7 | 355.6 |
| HSS12X12X1/2 | 113.2 | 304.8 |
| HSS10X10X5/8 | 113.6 | 254.0 |
| HSS16X16X3/8 | 116.9 | 406.4 |
| HSS10X10X3/4 | 133.2 | 254.0 |
| HSS14X14X1/2 | 133.5 | 355.6 |
| HSS12X12X5/8 | 138.9 | 304.8 |
| HSS16X16X1/2 | 153.7 | 406.4 |
| HSS12X12X3/4 | 163.6 | 304.8 |
| HSS14X14X5/8 | 164.2 | 355.6 |
| HSS18X18X1/2 | 174.0 | 457.2 |
| HSS16X16X5/8 | 189.6 | 406.4 |
| HSS14X14X3/4 | 194.0 | 355.6 |
| HSS20X20X1/2 | 194.2 | 508.0 |
| HSS18X18X5/8 | 214.9 | 457.2 |
| HSS14X14X7/8 | 222.6 | 355.6 |
| HSS16X16X3/4 | 224.3 | 406.4 |
| HSS20X20X5/8 | 240.2 | 508.0 |
| HSS18X18X3/4 | 254.7 | 457.2 |
| HSS16X16X7/8 | 258.1 | 406.4 |
| HSS20X20X3/4 | 285.1 | 508.0 |
| HSS18X18X7/8 | 293.5 | 457.2 |
| HSS22X22X3/4 | 315.5 | 558.8 |
| HSS20X20X7/8 | 329.0 | 508.0 |
| HSS22X22X7/8 | 364.4 | 558.8 |