Dimensions - Cold-Formed Rectangular Hollow Sections

Welcome to our Cold-Formed Rectangular Hollow Section dimensions page! Here you'll find dimensions for all UK Cold-Formed Rectangular 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. You can also purchase all our CAD data in one easy download, containing the sections as individual files and AutoCAD Design Center files or Microstation cel libraries - just click on the Shop button in the navigation above.

Section Reference Depth of Section Width of Section Thickness Mass per Metre Area of Section
  D
mm
B
mm
t
mm
kg/m A
cm2
50x25x2.0 50 25 2 2.15 2.74
50x25x3.0 50 25 3 3.07 3.91
50x30x2.5 50 30 2.5 2.82 3.59
50x30x3.0 50 30 3 3.3 4.21
50x30x4.0 50 30 4 4.2 5.35
60x30x3.0 60 30 3 3.77 4.81
60x30x4.0 60 30 4 4.83 6.15
60x40x3.0 60 40 3 4.25 5.41
60x40x4.0 60 40 4 5.45 6.95
60x40x5.0 60 40 5 6.56 8.36
70x40x3.0 70 40 3 4.72 6.01
70x40x4.0 70 40 4 6.08 7.75
70x50x3.0 70 50 3 5.19 6.61
70x50x4.0 70 50 4 6.71 8.55
80x40x3.0 80 40 3 5.19 6.61
80x40x4.0 80 40 4 6.71 8.55
80x40x5.0 80 40 5 8.13 10.4
80x50x3.0 80 50 3 5.66 7.21
80x50x4.0 80 50 4 7.34 9.35
80x50x5.0 80 50 5 8.91 11.4
80x60x3.0 80 60 3 6.13 7.81
80x60x4.0 80 60 4 7.97 10.1
80x60x5.0 80 60 5 9.7 12.4
90x50x3.0 90 50 3 6.13 7.81
90x50x4.0 90 50 4 7.97 10.1
90x50x5.0 90 50 5 9.7 12.4
100x40x3.0 100 40 3 6.13 7.81
100x40x4.0 100 40 4 7.97 10.1
100x40x5.0 100 40 5 9.7 12.4
100x50x3.0 100 50 3 6.6 8.41
100x50x4.0 100 50 4 8.59 10.9
100x50x5.0 100 50 5 10.5 13.4
100x50x6.0 100 50 6 12.3 15.6
100x60x3.0 100 60 3 7.07 9.01
100x60x3.5 100 60 3.5 8.16 10.4
100x60x4.0 100 60 4 9.22 11.7
100x60x5.0 100 60 5 11.3 14.4
100x60x6.0 100 60 6 13.2 16.8
100x80x3.0 100 80 3 8.01 10.2
100x80x4.0 100 80 4 10.5 13.3
100x80x5.0 100 80 5 12.8 16.4
120x40x3.0 120 40 3 7.07 9.01
120x40x4.0 120 40 4 9.22 11.7
120x40x5.0 120 40 5 11.3 14.4
120x60x3.0 120 60 3 8.01 10.2
120x60x3.5 120 60 3.5 9.26 11.8
120x60x4.0 120 60 4 10.5 13.3
120x60x5.0 120 60 5 12.8 16.4
120x60x6.0 120 60 6 15.1 19.2
120x80x4.0 120 80 4 11.7 14.9
120x80x5.0 120 80 5 14.4 18.4
120x80x6.0 120 80 6 17 21.6
120x80x8.0 120 80 8 21.4 27.2
140x80x3.0 140 80 3 9.9 12.6
140x80x4.0 140 80 4 13 16.5
140x80x5.0 140 80 5 16 20.4
140x80x6.0 140 80 6 18.9 24
140x80x8.0 140 80 8 23.9 30.4
140x80x10.0 140 80 10 28.7 36.6
150x100x3.0 150 100 3 11.3 14.4
150x100x4.0 150 100 4 14.9 18.9
150x100x5.0 150 100 5 18.3 23.4
150x100x6.0 150 100 6 21.7 27.6
150x100x8.0 150 100 8 27.7 35.2
150x100x10.0 150 100 10 33.4 42.6
160x80x4.0 160 80 4 14.2 18.1
160x80x5.0 160 80 5 17.5 22.4
160x80x6.0 160 80 6 20.7 26.4
160x80x8.0 160 80 8 26.4 33.6
180x80x4.0 180 80 4 15.5 19.7
180x80x5.0 180 80 5 19.1 24.4
180x80x6.0 180 80 6 22.6 28.8
180x80x8.0 180 80 8 28.9 36.8
180x80x10.0 180 80 10 35 44.6
180x100x4.0 180 100 4 16.8 21.3
180x100x5.0 180 100 5 20.7 26.4
180x100x6.0 180 100 6 24.5 31.2
180x100x8.0 180 100 8 31.4 40
180x100x10.0 180 100 10 38.1 48.6
200x100x4.0 200 100 4 18 22.9
200x100x5.0 200 100 5 22.3 28.4
200x100x6.0 200 100 6 26.4 33.6
200x100x8.0 200 100 8 33.9 43.2
200x100x10.0 200 100 10 41.3 52.6
200x120x4.0 200 120 4 19.3 24.5
200x120x5.0 200 120 5 23.8 30.4
200x120x6.0 200 120 6 28.3 36
200x120x8.0 200 120 8 36.5 46.4
200x120x10.0 200 120 10 44.4 56.6
200x150x4.0 200 150 4 21.2 26.9
200x150x5.0 200 150 5 26.2 33.4
200x150x6.0 200 150 6 31.1 39.6
200x150x8.0 200 150 8 40.2 51.2
200x150x10.0 200 150 10 49.1 62.6
250x150x5.0 250 150 5 30.1 38.4
250x150x6.0 250 150 6 35.8 45.6
250x150x8.0 250 150 8 46.5 59.2
250x150x10.0 250 150 10 57 72.6
250x150x12.0 250 150 12 66 84.1
250x150x12.5 250 150 12.5 68.3 87
300x100x6.0 300 100 6 35.8 45.6
300x100x8.0 300 100 8 46.5 59.2
300x100x10.0 300 100 10 57 72.6
300x100x12.5 300 100 12.5 68.3 87
300x200x6.0 300 200 6 45.2 57.6
300x200x8.0 300 200 8 59.1 75.2
300x200x10.0 300 200 10 72.7 92.6
300x200x12.0 300 200 12 84.8 108
300x200x12.5 300 200 12.5 88 112
400x200x8.0 400 200 8 71.6 91.2
400x200x10.0 400 200 10 88.4 113
400x200x12.0 400 200 12 104 132
400x200x12.5 400 200 12.5 108 137
450x250x8.0 450 250 8 84.2 107
450x250x10.0 450 250 10 104 133
450x250x12.0 450 250 12 123 156
450x250x12.5 450 250 12.5 127 162
500x300x8.0 500 300 8 96.7 123
500x300x10.0 500 300 10 120 153
500x300x12.0 500 300 12 141 180
500x300x12.5 500 300 12.5 147 187