Properties - Joists

Welcome to our Joist properties page! Here you'll find properties for all UK Joist 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 ReferenceSecond Moment of AreaRadius of GyrationElastic ModulusPlastic ModulusBuckling ParameterTorsional IndexWarping ConstantTorsional ConstantArea of Section
 Axis
x-x
Axis
y-y
Axis
x-x
Axis
y-y
Axis
x-x
Axis
y-y
Axis
x-x
Axis
y-y
     
 cm4cm4cmcmcm3cm3cm3cm3uxH
dm6
J
cm4
A
cm2
254x203x8212000228010.74.6794722410803710.888110.312152105
254x114x37508026910.42.3940047.145979.10.88518.70.039225.247.3
203x152x5248008168.493.54721075411760.8910.70.071164.866.6
152x127x3718203786.192.8223959.627999.80.8679.330.018333.947.5
127x114x299792425.122.5415442.318170.80.8538.770.0080720.837.4
127x114x279462365.262.6314941.317268.20.8689.310.0078816.934.2
127x76x1657160.85.211.7901610426.40.89111.80.00216.7221.1
114x114x277362244.622.5512939.215165.80.8397.920.0060118.934.5
102x102x234861544.072.2995.630.311350.60.8367.420.0032114.229.3
102x44x71537.824.010.90730.13.5135.46.030.87214.90.0001781.259.5
89x89x193071013.512.026922.882.7380.836.580.0015811.524.9
76x76x1517260.931.7845.215.254.225.80.826.420.00076.8319.1
76x76x1315851.83.121.7941.513.648.722.40.8537.210.0005954.5916.2