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American Standard I-Beam Dimensions

Section number Wt. Per foot (lbs) Dimensions
D W T
S4 7.7 4 2 5/8 5/16
9.5 4 2 3/4 5/16
S5 10 5 3 5/16
S6 12.5 6 3 3/8 3/8
17.25 6 3 5/8 3/8
S7 15.3 7 3 5/8 3/8
S8 18.4 8 4 7/16
23 8 4 1/8 7/16
S10 25.4 10 4 5/8 1/2
35 10 5 1/2
S12 31.8 12 5 9/16
35 12 5 1/8 9/16
40.8 12 5 1/4 11/16
50 12 5 1/2 11/16
S15 42.9 15 5 1/2 5/8
50 15 5 5/8 5/8
S18 54.7 18 6 11/16
70 18 6 1/4 11/16
S20 66 20 6 1/4 13/16
75 20 6 3/8 13/16
86 20 1/4 7 15/16
96 20 1/4 7 1/4 15/16
S24 80 24 7 7/8
90 24 7 1/8 7/8
100 24 7 1/4 7/8
106 24 1/2 7 7/8 1 1/16
121 24 1/2 8 1 1/16
Caution:  All dimensions and other information in this web are subject to change without notice.  Use for preliminary reference only, and then call Ace before ordering.  When dimensions are critical, request a certified print.