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.

You can also purchase all our CAD data in one easy download, containing the shapes as individual files or AutoCAD Design Center files! Click here to visit our Shop.

Section Reference	Second Moment of Area		Radius of Gyration		Elastic Modulus		Plastic Modulus		Buckling Parameter	Torsional Index	Warping Constant	Torsional Constant	Area 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
	cm⁴	cm⁴	cm	cm	cm³	cm³	cm³	cm³	u	x	H dm⁶	J cm⁴	A cm²
254x203x82	12000	2280	10.7	4.67	947	224	1080	371	0.888	11	0.312	152	105
254x114x37	5080	269	10.4	2.39	400	47.1	459	79.1	0.885	18.7	0.0392	25.2	47.3
203x152x52	4800	816	8.49	3.5	472	107	541	176	0.89	10.7	0.0711	64.8	66.6
152x127x37	1820	378	6.19	2.82	239	59.6	279	99.8	0.867	9.33	0.0183	33.9	47.5
127x114x29	979	242	5.12	2.54	154	42.3	181	70.8	0.853	8.77	0.00807	20.8	37.4
127x114x27	946	236	5.26	2.63	149	41.3	172	68.2	0.868	9.31	0.00788	16.9	34.2
127x76x16	571	60.8	5.21	1.7	90	16	104	26.4	0.891	11.8	0.0021	6.72	21.1
114x114x27	736	224	4.62	2.55	129	39.2	151	65.8	0.839	7.92	0.00601	18.9	34.5
102x102x23	486	154	4.07	2.29	95.6	30.3	113	50.6	0.836	7.42	0.00321	14.2	29.3
102x44x7	153	7.82	4.01	0.907	30.1	3.51	35.4	6.03	0.872	14.9	0.000178	1.25	9.5
89x89x19	307	101	3.51	2.02	69	22.8	82.7	38	0.83	6.58	0.00158	11.5	24.9
76x76x15	172	60.9	3	1.78	45.2	15.2	54.2	25.8	0.82	6.42	0.0007	6.83	19.1
76x76x13	158	51.8	3.12	1.79	41.5	13.6	48.7	22.4	0.853	7.21	0.000595	4.59	16.2