Steel Beam Sizes / AISC / W-Shapes / W21 / W21x111

W21x111 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

W21x111 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 111.00 lb/ft 165.00 kg/m
Depth, d 21.50 in 546.00 mm
Flange width, bf 12.30 in 312.00 mm
tw 0.550 in 14.000 mm
tf 0.875 in 22.200 mm
Area 32.60 in² 21,000.00 mm²
Ix 2,670.00 in⁴ 1,110,000,000 mm⁴
Iy 274.00 in⁴ 114,000,000 mm⁴
Sx 249.00 in³ 4,080,000 mm³
Sy 44.50 in³ 729,000.00 mm³
Zx 279.00 in³ 4,570,000 mm³
Zy 68.20 in³ 1,120,000 mm³
rx 9.05 in 230.00 mm
ry 2.90 in 73.70 mm
J 6.83 in⁴ 2,840,000 mm⁴
Cw 29,200.00 in⁶ 7,840,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W21x111.

Browse W21 series →

Lighter in W21

W21x101

Weight
101.0 lb/ft (-9.0%)
Depth
21.40 in (-0.5%)
Ix
2,420.0 in⁴ (-9.4%)

Heavier in W21

W21x122

Weight
122.0 lb/ft (+9.9%)
Depth
21.70 in (+0.9%)
Ix
2,960.0 in⁴ (+11%)

Closest Iₓ in W21

W21x132

Weight
132.0 lb/ft (+19%)
Depth
21.80 in (+1.4%)
Ix
3,220.0 in⁴ (+21%)

Similar weight in W18

W18x106

Weight
106.0 lb/ft (-4.5%)
Depth
18.70 in (-13%)
Ix
1,910.0 in⁴ (-28%)
Analyze in Beam Calculator Compare in W-Shapes finder

Source: AISC Shapes Database v16.0 · Methodology