W shapes (wide flange)

W12X87 W310X129

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 = 12.1d = 12.5tf = 0.81tf = 0.81tw = 0.515tw = 0.515
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12.5in
Flange widthbf
12.1in
Web thicknesstw
0.515in
Flange thicknesstf
0.81in
Distance k (design)kdes
1.41in
Distance k (detailing)kdet
1.688in
Distance k1k1
1.063in
Web clear depthT
9.125in
Distance between flange centroidsho
11.7in

Mass and area

Mass per lengthm
87lb/ft
Cross-sectional areaA
25.6in²

Strong axis x–x

Moment of inertiaIx
740in⁴
Elastic section modulusSx
118in³
Plastic section modulusZx
132in³
Radius of gyrationrx
5.38in

Weak axis y–y

Moment of inertiaIy
241in⁴
Elastic section modulusSy
39.7in³
Plastic section modulusZy
60.4in³
Radius of gyrationry
3.07in

Torsion and stability

Torsional constantJ
5.1in⁴
Warping constantCw
8,270in⁶
Effective radius of gyrationrts
3.46in

Slenderness ratios

Flange slendernessbf/2tf
7.48
Web slendernessh/tw
18.9

Equivalents in other standards