Hot Rolled Steel Structural  I - Beam
ASTM-A-36
Size / Wt.
per Foot 
Flange
Width
 Web
Thickness
 Weight per
20' Length
3" x 5.7 2.330 .170 114.0
4" x 7.7 2.663 .193 154.0
5" x 10.0 3.004 .214 200.0
6" x 12.5 3.332 .232 250.0
8" x 18.4 4.001 .271 368.0
10" x 25.4 4.661 .311 508.0