Square Hollow Sections

Nominal Size Mass per Metre Metre per Tonne
Size Thickness
mm mm mm (approx)
20x20 2 1.12 897
  2.5 1.35 741
25x25 2 1.43 700
  2.5 1.74 574
  3 2.04 491
30x30 2 1.65 606
  2.5 2.14 468
  3 2.51 399
40x40 2 2.28 439
  2.5 2.92 342
  3 3.45 290
  4 4.46 224
  5 5.4 185
50x50 2 2.91 344
  2.5 3.71 270
  3 4.39 228
  4 5.72 175
  5 6.97 143
  6.3 8.49 118
60x60 3 5.34 187
  4 6.97 143
  5 8.54 117
  6.3 10.47 96
  8 12.82 78
70x70 3 6.28 159
  3.6 7.46 134
  4 7.86 127
  5 10.11 99
  6.3 12.45 80
  8 15.33 65
80x80 3 7.22 139
  3.6 8.59 116
  4 9.11 110
  5 11.68 86
  6.3 14.43 69
  8 17.84 56
90x90 3 7.95 126
  3.6 9.72 103
  4 10.4 96
  5 13.3 75
  6 15.62 64
100x100 3 8.89 112
  4 12 83
  5 14.8 68
  6 16.7 60
  8 22.87 44
  10 27.88 36
Nominal Size Mass per Metre Metre per Tonne
Size Thickness
mm mm mm (approx)
120x120 4 14.5 69
  5 17.96 56
  6.3 22.34 45
  8 27.89 36
  10 34.16 29
  12.5 41.6 24
140x140 5 21.1 47
  6.3 26.3 38
  8 32.92 30
  10 40.44 25
  12.5 49.45 20
150x150 5 22.67 44
  6 26.2 38
  8 35.43 28
  10 43.58 23
  12.5 53.38 19
180x180 6.3 34.21 29
  8 42.96 23
  10 53 19
  12.5 65.15 15
  16 81.42 12
200x200 6.3 38.17 26
  8 47.99 21
  10 59.28 17
  12.5 73 14
  16 91.47 11
250x250 6.3 48.06 21
  8 60.55 17
  10 74.98 13
  12.5 92.63 11
  16 116.6 9
300x300 6.3 57.9 17
  8 73.1 14
  10 90.7 11
  12.5 112 9
  16 142 7
350x350 8 85.7 12
  10 106 9
  12.5 132 8
  16 167 6
400x400 10 122 8
  12.5 152 7
  16 192 5
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Please note that any specification or standard shown in this guide, including weights and properties is strictly for guidance purposes only, and Christmas Stockholders does not accept any liability for loss as a result of the specifications, weights, properties etc, shown within this guide.