Steel Beam Sizes / AISC / W-Shapes / W18 / W18x76

W18x76 Steel Beam Dimensions and Properties

AISC Wide flange · v16.0

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

Units

Section diagram

W18x76 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 76.00 lb/ft 113.00 kg/m
Depth, d 18.20 in 462.00 mm
Flange width, bf 11.00 in 279.00 mm
tw 0.425 in 10.800 mm
tf 0.680 in 17.300 mm
Area 22.30 in² 14,400.00 mm²
Ix 1,330.00 in⁴ 554,000,000 mm⁴
Iy 152.00 in⁴ 63,300,000 mm⁴
Sx 146.00 in³ 2,390,000 mm³
Sy 27.60 in³ 452,000.00 mm³
Zx 163.00 in³ 2,670,000 mm³
Zy 42.20 in³ 692,000.00 mm³
rx 7.73 in 196.00 mm
ry 2.61 in 66.30 mm
J 2.83 in⁴ 1,180,000 mm⁴
Cw 11,700.00 in⁶ 3,140,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W18x76.

Browse W18 series →

Lighter in W18

W18x71

Weight
71.0 lb/ft (-6.6%)
Depth
18.50 in (+1.6%)
Ix
1,170.0 in⁴ (-12%)

Heavier in W18

W18x86

Weight
86.0 lb/ft (+13%)
Depth
18.40 in (+1.1%)
Ix
1,530.0 in⁴ (+15%)

Closest Iₓ in W18

W18x65

Weight
65.0 lb/ft (-14%)
Depth
18.40 in (+1.1%)
Ix
1,070.0 in⁴ (-20%)

Similar weight in W16

W16x77

Weight
77.0 lb/ft (+1.3%)
Depth
16.50 in (-9.3%)
Ix
1,110.0 in⁴ (-17%)
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Source: AISC Shapes Database v16.0 · Methodology