Dimensions - Parallel Flange Channels

Welcome to our Parallel Flange Channel dimensions page! Here you'll find dimensions for all UK Parallel Flange Channel 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 Mass per Metre Depth of Section Width of Section Thickness Root Radius Depth between Fillets Ratios for Local Buckling Dimensions for Detailing Surface Area
        Web Flange     Flange Web End Clearance Notch Per Metre Per Tonne
  kg/m D
mm
B
mm
t
mm
T
mm
r
mm
d
mm
b/T d/t C
mm
N
mm
n
mm
m2 m2
430x100x64 64.4 430 100 11 19 15 362 5.26 32.9 13 96 36 1.23 19
380x100x54 54 380 100 9.5 17.5 15 315 5.71 33.2 12 98 34 1.13 20.9
300x100x46 45.5 300 100 9 16.5 15 237 6.06 26.3 11 98 32 0.969 21.3
300x90x41 41.4 300 90 9 15.5 12 245 5.81 27.2 11 88 28 0.932 22.5
260x90x35 34.8 260 90 8 14 12 208 6.43 26 10 88 28 0.854 24.5
260x75x28 27.6 260 75 7 12 12 212 6.25 30.3 9 74 26 0.796 28.8
230x90x32 32.2 230 90 7.5 14 12 178 6.43 23.7 10 90 28 0.795 24.7
230x75x26 25.7 230 75 6.5 12.5 12 181 6 27.8 9 76 26 0.737 28.7
200x90x30 29.7 200 90 7 14 12 148 6.43 21.1 9 90 28 0.736 24.8
200x75x23 23.4 200 75 6 12.5 12 151 6 25.2 8 76 26 0.678 28.9
180x90x26 26.1 180 90 6.5 12.5 12 131 7.2 20.2 9 90 26 0.697 26.7
180x75x20 20.3 180 75 6 10.5 12 135 7.14 22.5 8 76 24 0.638 31.4
150x90x24 23.9 150 90 6.5 12 12 102 7.5 15.7 9 90 26 0.637 26.7
150x75x18 17.9 150 75 5.5 10 12 106 7.5 19.3 8 76 24 0.579 32.4
125x65x15 14.8 125 65 5.5 9.5 12 82 6.84 14.9 8 66 22 0.489 33.1
100x50x10 10.2 100 50 5 8.5 9 65 5.88 13 7 52 18 0.382 37.5