W shapes (wide flange)

W33X387 W840X576

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 = 16.2d = 36tf = 2.28tf = 2.28tw = 1.26tw = 1.26
Cross-section, to scaledimensions in inches

Dimensions

Depthd
36in
Flange widthbf
16.2in
Web thicknesstw
1.26in
Flange thicknesstf
2.28in
Distance k (design)kdes
3.07in
Distance k (detailing)kdet
3.563in
Distance k1k1
1.813in
Web clear depthT
28.88in
Distance between flange centroidsho
33.7in

Mass and area

Mass per lengthm
387lb/ft
Cross-sectional areaA
114in²

Strong axis x–x

Moment of inertiaIx
24,300in⁴
Elastic section modulusSx
1,350in³
Plastic section modulusZx
1,560in³
Radius of gyrationrx
14.6in

Weak axis y–y

Moment of inertiaIy
1,620in⁴
Elastic section modulusSy
200in³
Plastic section modulusZy
312in³
Radius of gyrationry
3.77in

Torsion and stability

Torsional constantJ
148in⁴
Warping constantCw
459,000in⁶
Effective radius of gyrationrts
4.49in

Slenderness ratios

Flange slendernessbf/2tf
3.55
Web slendernessh/tw
23.7

Equivalents in other standards