W shapes (wide flange)

W33X221 W840X329

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xybf = 15.8d = 33.9tf = 1.28tf = 1.28tw = 0.775tw = 0.775
Cross-section, to scaledimensions in inches

Dimensions

Depthd
33.9in
Flange widthbf
15.8in
Web thicknesstw
0.775in
Flange thicknesstf
1.28in
Distance k (design)kdes
2.06in
Distance k (detailing)kdet
2.5in
Distance k1k1
1.625in
Web clear depthT
28.88in
Distance between flange centroidsho
32.6in

Mass and area

Mass per lengthm
221lb/ft
Cross-sectional areaA
65.3in²

Strong axis x–x

Moment of inertiaIx
12,900in⁴
Elastic section modulusSx
759in³
Plastic section modulusZx
857in³
Radius of gyrationrx
14.1in

Weak axis y–y

Moment of inertiaIy
840in⁴
Elastic section modulusSy
106in³
Plastic section modulusZy
164in³
Radius of gyrationry
3.59in

Torsion and stability

Torsional constantJ
27.8in⁴
Warping constantCw
224,000in⁶
Effective radius of gyrationrts
4.25in

Slenderness ratios

Flange slendernessbf/2tf
6.2
Web slendernessh/tw
38.5

Equivalents in other standards