ROYMECHX

Joists ...BS 4-1:1971 (Superseded by BS 4: 1993)


Joists ...BS 4-1:1971 (Superseded by BS 4: 1993)

Please don't use for new designs

Dimensions
M = Mass per m , D= Depth of Section, B= Width of Section,
T = Flange Thickness, T1 = Web thickness, R1 = Root radius, R2 =Toe Rad, Area = Area of Section
Serial Size M D B T1 T R1 R2 D1 D/T Area
mm kg mm mm mm mm mm mm mm cm2
203 x 102 25.33 203.2 101.6 5.8 10.4 9.4 3.2 161.0 19.5 32.3
178 x 102 21.54 178.8 101.6 5.3 9.0 9.4 3.2 138.2 19.8 27.4
152 x 89 17.09 152.4 88.9 4.9 8.3 7.9 2.4 117.9 18.4 21.8
127 x 76 13.36 127.0 76.2 4.5 7.6 7.9 2.4 94.2 16.7 17.0
102 x 64 9.65 101.6 63.5 4.1 6.6 6.9 2.4 73.2 15.4 12.3
76 x 51 6.67 76.2 50.8 3.8 5.6 6.9 2.4 50.3 13.6 8.49