W21×275 wide-flange beam

W21×275 weighs 275 lb per foot. Detailing dimensions and section properties below come from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.

Detailing dimensions

Depth (d)24 1/8"
Flange width (bf)12 7/8"
Web thickness (tw)1 1/4"
Flange thickness (tf)2 3/16"
k (detailing)3 7/16"
Workable gage (g)5 1/2"

Section properties

Weight275 lb/ft
Area (A)81.8 in²
Ix7690 in⁴
Sx638 in³
Zx749 in³
rx9.7 in
Iy787 in⁴
Sy122 in³
Zy191 in³
ry3.1 in
J107 in⁴

Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need W21×275 cut, formed, or fabricated? Huntington Steel & Supply Co.

Interactive drawing