Steel Beam Sizes / AISC / W-Shapes / W21 / W21x147

W21x147 Steel Beam Dimensions and Properties

AISC Wide flange · v16.0

Analyze in Beam Calculator Back to W-Shapes All W21

Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

W21x147 dimensions

Not to scale. Dimensions shown for reference.

Section properties

Symbols match the steel section finder. Imperial and metric values are shown side by side.

Property Imperial Metric
Weight 147.00 lb/ft 219.00 kg/m
Depth, d 22.10 in 561.00 mm
Flange width, bf 12.50 in 318.00 mm
tw 0.720 in 18.300 mm
tf 1.150 in 29.200 mm
Area 43.20 in² 27,900.00 mm²
Ix 3,630.00 in⁴ 1,510,000,000 mm⁴
Iy 376.00 in⁴ 157,000,000 mm⁴
Sx 329.00 in³ 5,390,000 mm³
Sy 60.10 in³ 985,000.00 mm³
Zx 373.00 in³ 6,110,000 mm³
Zy 92.60 in³ 1,520,000 mm³
rx 9.17 in 233.00 mm
ry 2.95 in 74.90 mm
J 15.40 in⁴ 6,410,000 mm⁴
Cw 41,100.00 in⁶ 11,000,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W21x147.

Browse W21 series →

Lighter in W21

W21x132

Weight
132.0 lb/ft (-10%)
Depth
21.80 in (-1.4%)
Ix
3,220.0 in⁴ (-11%)

Heavier in W21

W21x166

Weight
166.0 lb/ft (+13%)
Depth
22.50 in (+1.8%)
Ix
4,280.0 in⁴ (+18%)

Closest Iₓ in W21

W21x122

Weight
122.0 lb/ft (-17%)
Depth
21.70 in (-1.8%)
Ix
2,960.0 in⁴ (-18%)

Similar weight in W24

W24x146

Weight
146.0 lb/ft (-0.7%)
Depth
24.70 in (+12%)
Ix
4,580.0 in⁴ (+26%)
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Source: AISC Shapes Database v16.0 · Methodology