Dimensions - Hot Finished Square Hollow Sections

Welcome to our Hot Finished Square Hollow Section dimensions page! Here you'll find dimensions for all UK Hot Finished Square Hollow Section steel sections described by the Steelwork Design Guide to BS5950-1:2000, Volume 1, Section Properties, Member Capacities, 7th Edition (also known as The Blue Book). Sort the table below according to any property and select a CAD file to download using the reference links in the left-most column.

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Section Reference Size Thickness Mass per Metre Area of Section
  D x D
mm
t
mm
kg/m A
cm2
40x40x3.0 40x40 3 3.41 4.34
40x40x3.2 40x40 3.2 3.61 4.6
40x40x4.0 40x40 4 4.39 5.59
40x40x5.0 40x40 5 5.28 6.73
50x50x3.0 50x50 3 4.35 5.54
50x50x3.2 50x50 3.2 4.62 5.88
50x50x4.0 50x50 4 5.64 7.19
50x50x5.0 50x50 5 6.85 8.73
50x50x6.3 50x50 6.3 8.31 10.6
60x60x3.0 60x60 3 5.29 6.74
60x60x3.2 60x60 3.2 5.62 7.16
60x60x4.0 60x60 4 6.9 8.79
60x60x5.0 60x60 5 8.42 10.7
60x60x6.3 60x60 6.3 10.3 13.1
60x60x8.0 60x60 8 12.5 16
70x70x3.6 70x70 3.6 7.4 9.42
70x70x5.0 70x70 5 9.99 12.7
70x70x6.3 70x70 6.3 12.3 15.6
70x70x8.0 70x70 8 15 19.2
80x80x3.6 80x80 3.6 8.53 10.9
80x80x4.0 80x80 4 9.41 12
80x80x5.0 80x80 5 11.6 14.7
80x80x6.3 80x80 6.3 14.2 18.1
80x80x8.0 80x80 8 17.5 22.4
90x90x3.6 90x90 3.6 9.66 12.3
90x90x4.0 90x90 4 10.7 13.6
90x90x5.0 90x90 5 13.1 16.7
90x90x6.3 90x90 6.3 16.2 20.7
90x90x8.0 90x90 8 20.1 25.6
100x100x4.0 100x100 4 11.9 15.2
100x100x5.0 100x100 5 14.7 18.7
100x100x6.3 100x100 6.3 18.2 23.2
100x100x8.0 100x100 8 22.6 28.8
100x100x10.0 100x100 10 27.4 34.9
120x120x5.0 120x120 5 17.8 22.7
120x120x6.3 120x120 6.3 22.2 28.2
120x120x8.0 120x120 8 27.6 35.2
120x120x10.0 120x120 10 33.7 42.9
120x120x12.5 120x120 12.5 40.9 52.1
140x140x5.0 140x140 5 21 26.7
140x140x6.3 140x140 6.3 26.1 33.3
140x140x8.0 140x140 8 32.6 41.6
140x140x10.0 140x140 10 40 50.9
140x140x12.5 140x140 12.5 48.7 62.1
150x150x5.0 150x150 5 22.6 28.7
150x150x6.3 150x150 6.3 28.1 35.8
150x150x8.0 150x150 8 35.1 44.8
150x150x10.0 150x150 10 43.1 54.9
150x150x12.5 150x150 12.5 52.7 67.1
160x160x5.0 160x160 5 24.1 30.7
160x160x6.3 160x160 6.3 30.1 38.3
160x160x8.0 160x160 8 37.6 48
160x160x10.0 160x160 10 46.3 58.9
160x160x12.5 160x160 12.5 56.6 72.1
160x160x14.2 160x160 14.2 63.3 80.7
180x180x6.3 180x180 6.3 34 43.3
180x180x8.0 180x180 8 42.7 54.4
180x180x10.0 180x180 10 52.5 66.9
180x180x12.5 180x180 12.5 64.4 82.1
180x180x14.2 180x180 14.2 72.2 92
180x180x16.0 180x180 16 80.2 102
200x200x5.0 200x200 5 30.4 38.7
200x200x6.3 200x200 6.3 38 48.4
200x200x8.0 200x200 8 47.7 60.8
200x200x10.0 200x200 10 58.8 74.9
200x200x12.5 200x200 12.5 72.3 92.1
200x200x14.2 200x200 14.2 81.1 103
200x200x16.0 200x200 16 90.3 115
250x250x6.3 250x250 6.3 47.9 61
250x250x8.0 250x250 8 60.3 76.8
250x250x10.0 250x250 10 74.5 94.9
250x250x12.5 250x250 12.5 91.9 117
250x250x14.2 250x250 14.2 103 132
250x250x16.0 250x250 16 115 147
260x260x6.3 260x260 6.3 49.9 63.5
260x260x8.0 260x260 8 62.8 80
260x260x10.0 260x260 10 77.7 98.9
260x260x12.5 260x260 12.5 95.8 122
260x260x14.2 260x260 14.2 108 137
260x260x16.0 260x260 16 120 153
300x300x6.3 300x300 6.3 57.8 73.6
300x300x8.0 300x300 8 72.8 92.8
300x300x10.0 300x300 10 90.2 115
300x300x12.5 300x300 12.5 112 142
300x300x14.2 300x300 14.2 126 160
300x300x16.0 300x300 16 141 179
350x350x8.0 350x350 8 85.4 109
350x350x10.0 350x350 10 106 135
350x350x12.5 350x350 12.5 131 167
350x350x14.2 350x350 14.2 148 189
350x350x16.0 350x350 16 166 211
400x400x10.0 400x400 10 122 155
400x400x12.5 400x400 12.5 151 192
400x400x14.2 400x400 14.2 170 217
400x400x16.0 400x400 16 191 243
400x400x20.0 400x400 20 235 300