W21 sizes

Every W21 in the AISC Shapes Database, 16th Edition, from 44 to 275 lb per foot. Pick a size for its full detailing dimensions and section properties.

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W21 weight and dimension chart

SizeWeight (lb/ft)DepthFlangeSx (in³)
W21×444420 5/8"6 1/2"81.6
W21×484820 5/8"8 1/8"93
W21×505020 7/8"6 1/2"94.5
W21×555520 3/4"8 1/4"110
W21×575721"6 1/2"111
W21×626221"8 1/4"127
W21×686821 1/8"8 1/4"140
W21×737321 1/4"8 1/4"151
W21×838321 3/8"8 3/8"171
W21×939321 5/8"8 3/8"192
W21×10110121 3/8"12 1/4"227
W21×11111121 1/2"12 3/8"249
W21×12212221 5/8"12 3/8"273
W21×13213221 7/8"12 1/2"295
W21×14714722"12 1/2"329
W21×16616622 1/2"12 3/8"380
W21×18218222 3/4"12 1/2"417
W21×20120123"12 5/8"461
W21×22322323 3/8"12 5/8"520
W21×24824823 3/4"12 3/4"576
W21×27527524 1/8"12 7/8"638

Data from the AISC Shapes Database v16.0. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.

Browse more: Wide flange beams · Steel Beam Size Chart