HSS
HOLLOW STRUCTURAL SECTIONS
(HSS)

SQUARE - GR 350W
A500C
HOLLOW STRUCTURAL SECTIONS 
(HSS)

Imperial Metric Weight lbs./ft.
1/2 x 1/2 x 0.065 12.7 x 12.7 x 1.65 0.38
3/4 x 3/4 x 0.065 19.1 x 19.1 x 1.65 0.61
1 x 1 x 0.065 25.4 x 25.4 x 1.65 0.83
x 0.083 x 2.11 0.95
x 0.1 x 2.54 1.14
x 0.125 x 3.18 1.35
1-1/4 x 1-1/4 x 0.083 31.8 x 31.8 x 1.83 1.32
x 0.1 x 2.54 1.48
x 0.125 x 3.18 1.78
1-1/2 x 1-1/2 x 0.083 38.1 x 38.1 x 2.11 1.51
x 0.1 x 2.54 1.82
x 0.125 x 3.18 2.21
x 0.188 x 4.78 3.35
2 x 2 x 0.1 50.8 x 50.8 x 2.54 2.58
x 0.11 x 2.79 2.72
x 0.125 x 3.18 3.06
x 0.188 x 4.78 4.33
x 0.25 x 6.35 5.41
2-1/2 x 2-1/2 x 0.125 63.5 x 63.5 x 3.18 3.91
x 0.188 x 4.78 5.61
x 0.215 x 5.46 6.2
x 0.25 x 6.35 7.11
Imperial Metric Weight lbs./ft.
3 x 3 x 0.125 76.2 x 76.2 x 3.18 4.76
x 0.188 x 4.78 6.89
x 0.25 x 6.35 8.81
x 0.313 x 7.95 10.59
x 0.375 x 9.53 12.2
3-1/2 x 3-1/2 x 0.125 88.9 x 88.9 x 3.18 5.59
x 0.188 x 4.78 8.17
x 0.25 x 6.35 10.51
x 0.313 x 7.95 12.7
x 0.375 x 9.53 14.71
4 x 4 x 0.125 101.6 x 101.6 x 3.18 6.46
x 0.188 x 4.78 9.45
x 0.25 x 6.35 12.21
x 0.313 x 7.95 14.83
x 0.375 x 9.53 17.27
x 0.5 x 12.70 21.63
4-1/2 x 4-1/2 x 0.188 114.3 x 114.3 x 4.78 10.7
x 0.25 x 6.35 13.9
x 0.313 x 7.95 17
x 0.375 x 9.53 19.8
Imperial Metric Weight lbs./ft.
5 x 5 x 0.125 127 x 127 x 3.18 8.15
x 0.188 x 4.78 12.00
x 0.250 x 6.35 15.62
x 0.313 x 7.95 19.08
x 0.375 x 9.53 22.37
x 0.500 x 12.7 28.43
6 x 6 x 0.188 152.4 x 152.4 x 4.78 14.56
x 0.250 x 6.35 19.02
x 0.313 x 7.95 23.33
x 0.375 x 9.53 27.48
x 0.500 x 12.7 35.24
x 0.625 x 42.30
7 x 7 x 0.188 177.8 x 177.8 x 4.78 17.13
x 0.250 x 6.35 22.42
x 0.313 x 7.95 27.63
x 0.375 x 9.53 32.58
x 0.500 x 12.7 42.05
x 0.625 x - 50.81
8 x 8 x 0.188 203.2 x 203.2 x 4.78 19.63
x 0.250 x 6.35 25.82
x 0.313 x 7.95 31.84
x 0.375 x 9.53 37.69
x 0.500 x 12.7 48.85
x 0.625 x - 59.32
Imperial Metric Weight lbs./ft.
10 x 10 x 0.250 254 x 254 x 6.35 32.63
x 0.313 x 7.95 40.40
x 0.375 x 9.53 47.90
x 0.500 x 12.7 62.46
x 0.625 x - 76.33
x 0.750 x - 89.50
12 x 12 x 0.250 304.8 x 304.8 x 6.35 39.43
x 0.313 x 7.95 48.86
x 0.375 x 9.53 58.10
x 0.500 x 12.7 76.07
x 0.625 x - 93.34
x 0.750 x - 109.91
x 0.875 x 140.96
14 x 14 x 0.313 355.6 x 355.6 x 7.95 57.36
x 0.375 x 9.53 68.31
x 0.500 x 12.7 89.68
x 0.625 x - 110.36
x 0.750 x - 130.33
x 0.875 x - 149.61
x 1.000 x - 168.18
16 x 16 x 0.313 406.4 x 406.4 x 7.95 65.87
x 0.375 x 9.53 78.52
x 0.500 x 12.7 103.30
x 0.750 x 150.75
x 0.875 x 173.43
x 1.000 x 195.40
Imperial Metric Weight lbs./ft.
18 x 18 x 0.375 - x 9.53 88.73
x 0.500 x 12.7 116.91
x 0.625 x - 144.29
x 0.750 x - 171.16
x 0.875 x - 197.24
x 1.000 - x 9.53 222.63
20 x 20 x 0.375 - x 9.53 98.94
x 0.500 x 12.7 130.52
x 0.625 x - 161.40
x 0.750 x - 191.58
x 0.875 x - 221.06
x 1.000 x - 249.85
22 x 22 x 0.500 x - 144.13
x 0.625 x - 178.41
x 0.750 x - 212.00
x 0.875 x - 244.88
x 1.000 x - 277.07

RECTANGULAR - GR 350W
A500C
HOLLOW STRUCTURAL SECTIONS 
(HSS)

Imperial Metric Weight lbs./ft.
2 x 1 x 0.083 50.8 x 25.4 x 2.11 1.54
x 0.100 x x 2.54 1.82
x 0.125 x x 3.18 2.21
2-1/2 x 1-1/2 x 0.125 63.5 x 38.1 x 3.18 3.06
x 0.188 x x 4.78 4.33
3 x 1 x 0.100 76.2 x 25.4 x 2.54 2.58
x 0.125 x x 3.18 3.06
x 0.188 x x 4.78 4.32
x 0.250 x x 6.35 5.41
3 x 1-1/2 x 0.100 76.2 x 38.1 x 2.54 2.92
x 0.125 x x 3.18 3.48
x 0.188 x x 4.78 4.96
3 x 2 x 0.125 76.2 50.8 3.91
x 0.188 x x 4.78 5.61
x 0.250 x x 6.35 7.11
3-1/2 x 2-1/2 x 0.188 88.9 x 63.5 x 4.78 6.89
x 0.250 x x 6.35 8.80
4 x 2 x 0.125 101.6 x 50.8 x 3.18 4.76
x 0.188 x x 4.78 6.89
x 0.250 x x 6.35 8.81
4 x 3 x 0.125 101.6 x 76.2 x 3.18 5.61
x 0.188 x x 4.78 8.17
x 0.250 x x 6.35 10.51
x 0.375 x x 9.53 14.71
Imperial Metric Weight lbs./ft.
5 x 2 x 0.125 127.0 x 50.8 x 3.18 5.61
x 0.188 x x 4.78 8.17
x 0.250 x x 6.35 10.51
x 0.375 x x 9.53 14.7
5 x 3 x 0.188 127.0 x 76.2 x 4.78 9.45
x 0.250 x x 6.35 12.21
x 0.375 x x 9.53 17.27
6 x 2 x 0.125 152.4 x 50.8 x 3.18 6.46
x 0.188 x x 4.78 9.45
x 0.250 x x 6.35 12.21
x 0.313 x x 7.95 14.8
x 0.375 x x 9.53 17.27
6 x 3 x 0.188 152.4 x 76.2 x 4.78 10.7
x 0.250 x x 6.35 13.91
x 0.313 x x 7.95 17.0
x 0.375 x x 9.53 19.82
6 x 4 x 0.188 152.4 x 101.6 x 4.78 12.0
x 0.250 x x 6.35 15.62
x 0.313 x x 7.95 19.08
x 0.375 9.53 22.37
x 0.500 x x 12.7 28.43
7 x 5 x 0.125 - x - x x - 8.16
x 0.188 177.8 x 127.0 x 4.78 14.56
x 0.250 x x 6.35 19.02
x 0.313 x x 7.95 23.4
x 0.375 x x 9.53 27.48
x 0.500 x x 12.7 35.24
Imperial Metric Weight lbs./ft.
8 x 2 x 0.125 - x - x x - 8.16
x 0.188 203.2 x 50.8 x 4.78 11.90
x 0.250 x x 6.35 15.62
x 0.375 x x 9.53 21.9
8 x 3 x 0.188 203.2 x 76.2 x 4.78 13.3
x 0.250 x x 6.35 17.3
x 0.375 x x 9.53 24.9
8 x 4 x 0.188 203.2 x 101.6 x 4.78 14.56
x 0.250 x x 6.35 19.02
x 0.313 x x 7.95 23.4
x 0.375 x x 9.53 27.48
x 0.500 x x 12.7 35.24
8 x 6 x 0.188 203.2 x 152.4 x 4.78 17.13
x 0.250 x x 6.35 22.42
x 0.313 x x 7.95 27.63
x 0.375 x x 9.53 32.58
x 0.500 x x 12.7 42.05
Imperial Metric Weight lbs./ft.
10 x 4 x 0.188 254.0 x 101.6 x 4.78 17.1
x 0.250 x x 6.35 22.42
x 0.313 x x 7.95 27.63
x 0.375 x x 9.53 32.6
x 0.500 x x 42.05
x 0.625 x x 50.81
10 x 6 x 0.250 254.0 152.4 6.35 25.82
x 0.313 x x 7.95 31.84
x 0.375 x x 9.53 37.69
x 0.500 x x 48.85
x 0.625 x x 59.32
10 x 8 x 0.250 254.0 x 203.2 x 6.35 29.23
x 0.375 x x 9.53 41.9
x 0.500 x x 12.7 54.1
x 0.625 x x 67.82
12 x 6 x 0.250 304.8 x 152.4 x 6.35 29.23
x 0.375 x x 9.53 41.9
x 0.500 x x 12.7 54.1
x 0.625 x x 67.82
12 x 8 x 0.250 304.8 x 203.2 x 6.35 32.63
x 0.313 x x 7.95 40.4
x 0.375 x x 9.53 47.9
x 0.500 x x 12.7 62.46
x 0.625 x x 76.33
Imperial Metric Weight lbs./ft.
14 x 6 x 0.25 355.6 x 152.4 x 6.35 32.63
x 0.313 x x 7.95 40.35
x 0.375 x x 9.53 47.9
x 0.5 x x 12.7 62.46
14 x 10 x 0.313 355.6 x 254 x 7.95 48.86
x 0.375 x x 9.53 58.1
x 0.5 x x 12.7 76.07
x 0.75 x x 109.91
x 0.875 x x 125.79
16 x 8 x 0.313 406.4 x 203.2 x 7.95 48.86
x 0.375 x x 9.53 58.1
x 0.5 x x 12.7 76.07
x 0.75 x x 109.91
x 0.875 x x 125.79
16 x 12 x 0.313 406.4 x 304.8 x 7.95 57.36
x 0.375 x x 9.53 68.31
x 0.5 x x 12.7 89.68
x 0.75 x x 130.33
x 0.875 x x 149.61
x 1 x x 168.18
Imperial Metric Weight lbs./ft.
18 x 6 x 0.75 x x 109.91
20 x 8 x 0.75 x x 130.33
x 0.875 x x 149.61
x 1 x x 168.18
20 x 12 x 0.75 x x 150.75
x 0.875 x x 173.43
x 1 x x 195.4
24 x 12 x 0.375 x x 88.73
x 0.5 x x 116.91
x 0.625 x x 144.39
x 0.75 x x 171.16
x 0.875 x x 197.24
x 1 x x 222.63
30 x 10 x 0.5 x x 130.52
x 0.625 x x 161.4
x 0.75 x x 191.58
x 0.875 x x 221.06
x 1 x x 249.85
34 x 10 x 0.625 x x 178.41
x 0.75 x x 212
x 0.875 x x 244.88
x 1 x x 277.07

ROUND - GR 350W
A500C
HOLLOW STRUCTURAL SECTIONS 
(HSS)

Other Hot Rolled Bars


COMMON STOCK LENGTH (feet) 
20 / 24 / 40 / 48 / 60
TOLERANCES
Wall Thickness + / - 10% +10% / -5%
SQUARE STRUCTURAL TUBE GRADES
A500 Grade C CSA 350W A1085
Yield Strength 50,000 psi 50,000 psi 70,000 psi
Tensile Strength 62,000 psi 65,000 psi 65,000 psi
RECTANGULAR STRUCTURAL TUBE GRADES
A500 Grade C CSA 350W A1085
Yield Strength 50,000 psi 50,000 psi 70,000 psi
Tensile Strength 62,000 psi 65,000 psi 65,000 psi
ROUND STRUCTURAL TUBE GRADES
A500 Grade C CSA 350W A1085
Yield Strength 46,000 psi 50,000 psi 50,000 psi
Tensile Strength 62,000 psi 65,000 psi 65,000 psi
0.154 0.179 0.188 0.191 0.200 0.203 in. 0.083 0.100 0.109 0.113 0.120 0.125 0.133 0.134 0.140 0.145
— — — — — — 1.050 — — — 1.131 — — — — — —
— 2.172 — — — — 1.315 — 1.404 — — 1.590 1.679 — — —
— — — 2.997 — — 1.66 1.670 1.810 — — 2.051 — 2.186 2.270 —
— — 3.432 — 3.631 — 1.9 — 1.924 2.085 — — 2.372 — 2.530 — 2.780
3.660 — 4.385 — — — 2.375 — — 2.638 — — 3.007 — 3.210 — —
— — 5.400 — — 5.800 2.875 — — — — 3.531 3.675 — 3.930 — —
— — 6.656 — — — 3.5 — — — — 4.332 4.510 — 4.820 — —
— — 7.661 — — — 4 — — — 4.972 5.178 — 5.540 — —
— — 8.644 — — — 4.5 — — — — 5.614 — — 6.254 — —
— — 9.671 — — — 5 — — — — 6.514 — 6.970 — —
— — 10.775 — — — 5.563 — — — — — — — 7.777 — —
— — 12.903 — — — 6.625 — — — — — — — 9.298 — —
— — 13.690 — — — 7 — — — — — — — — —
— — — — — — 7.25 — — — — — — — — — —
— — — — — — 7.5 — — — — — — — — —
— — 16.956 — — — 8.625 — — — — — — — — — —
— — — — — — 9.625 — — — — — — — — —
— — 19.722 — — — 10.0 — — — — — — — — — —
— — 21.171 — — — 10.75 — — — — — — — — — —
— — — — — — 11.75 — — — — — — — — — —
— — — — — — 12 — — — — — — — — — —
— — — — — — 12.75 — — — — — — — — — —
— — — — — — 13.375 — — — — — — — — — —
— — 27.760 — — — 14.0 — — — — — — — — — —
— — 31.780 — — — 16.0 — — — — — — — — — —
— — — — — — 18.0 — — — — — — — — — —
— — — — — — 20 — — — — — — — — — —
0.322 0.337 0.342 0.365 0.375 0.5 0.625 0.75 0.875 in. 0.216 0.218 0.237 0.25 0.258 0.276 0.28 0.3 0.313 1 0.318
— — — — — — — 1.05 — — — — — — — — — —
1.315
1.66
— — — — — — — 1.9 — — — — — — — — — —
— — — — — — — 2.375 — 5.02 — 5.674 — — — — — —
— — — — — — — 2.5 — — — 6.013 — — — — — —
— — — — — — — 2.875 — — — 7.015 — 7.661 — — — —
— — — — — — — 3 — — — 7.349 — — — — — —
— — — — — — — 3.5 7.58 — — 8.686 — — — 10.253 — —
— — — — — — — 4 — — — 10.022 — — — — — 12.51
— 14.983 — — 16.536 — — 4.5 — — 10.79 11.358 — — — — 14.01 —
— — — — 18.54 24.05 — 5 — — — 12.694 — — — — 15.683 —
— — — — 20.797 27.062 — 5.563 — — — 14.199 14.63 — — — — —
— — — — 25.055 32.738 — 6.625 — — — 17.037 — — 18.99 — 21.12 —
— — — — 26.558 34.743 — 7 — — — 18.039 — — — — 22.375 —
— — — — 27.564 36.084 44.269 7.25 — — — 18.71 — — — — 23.214 —
— — — — 28.56 37.42 45.93 7.5 — — — 19.38 — — — — 24.05 —
28.58 — — — 33.072 43.428 53.45 8.625 — — — 22.382 — — — — 27.81 —
— — 33.94 — 37.081 48.773 60.131 9.625 — — — 25.055 — — — — 31.158 —
— — — — 38.58 50.784 62.645 10 — — — 26.06 — — — — 32.417 —
— — 38.581 41.591 54.786 67.648 10.75 — — — 28.061 — — — — 34.922 —
— — — — 45.6 60.131 74.329 11.75 — — — 30.734 — — — — — —
— — — — 46.602 61.468 75.999 12 — — — 31.402 — — — — 39.1 —
— — — — 49.608 65.476 81.01 96.21 111.08 12.75 — — — 33.406 — — — — 41.61 - —
— — — — 52.114 68.817 85.186 - - 13.375 — — — 35.077 — — — — 43.71 - —
— — — — 54.619 72.158 89.362 106.23 122.77 14 — — — 36.747 — — — — 45.8 138.97 —
— — — — 62.637 82.848 102.724 122.27 141.48 16 — — — 42.092 — — — — 52.49 160.35 —
— — — — 70.654 93.54 116.087 138.3 160.19 18 — — — 47.437 — — — — 59.18 181.73 —
— — — — 78.672 104.228 129.449 154.34 178.89 20 — — — 52.782 — — — — 65.87 203.11 —