W shapes (wide flange)

W36X387 W920X576

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 = 12.7d = 39.1tf = 2.56tf = 2.56tw = 1.42tw = 1.42
Cross-section, to scaledimensions in inches

Dimensions

Depthd
39.1in
Flange widthbf
12.7in
Web thicknesstw
1.42in
Flange thicknesstf
2.56in
Distance k (design)kdes
3.31in
Distance k (detailing)kdet
3.813in
Distance k1k1
1.938in
Web clear depthT
31.5in
Distance between flange centroidsho
36.5in

Mass and area

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

Strong axis x–x

Moment of inertiaIx
26,500in⁴
Elastic section modulusSx
1,360in³
Plastic section modulusZx
1,610in³
Radius of gyrationrx
15.2in

Weak axis y–y

Moment of inertiaIy
882in⁴
Elastic section modulusSy
139in³
Plastic section modulusZy
224in³
Radius of gyrationry
2.78in

Torsion and stability

Torsional constantJ
172in⁴
Warping constantCw
294,000in⁶
Effective radius of gyrationrts
3.44in

Slenderness ratios

Flange slendernessbf/2tf
2.48
Web slendernessh/tw
22.9

Equivalents in other standards