Steel Beam Sizes / AISC / WT Tees / WT18x75

WT18x75 Steel Beam Dimensions and Properties

AISC Structural tees · v16.0

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

Units

Section diagram

WT18x75 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 75.00 lb/ft 112.00 kg/m
Depth, d 17.90 in 455.00 mm
Flange width, bf 12.00 in 305.00 mm
tw 0.625 in 15.900 mm
tf 0.940 in 23.900 mm
Area 22.10 in² 14,300.00 mm²
Ix 698.00 in⁴ 291,000,000 mm⁴
Iy 135.00 in⁴ 56,200,000 mm⁴
Sx 53.10 in³ 870,000.00 mm³
Sy 22.50 in³ 369,000.00 mm³
Zx 95.50 in³ 1,560,000 mm³
Zy 35.40 in³ 580,000.00 mm³
rx 5.62 in 143.00 mm
ry 2.47 in 62.70 mm
J 5.04 in⁴ 2,100,000 mm⁴
Cw 46.00 in⁶ 12,400,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT18x75.

Lighter in WT18

WT18x67.5

Weight
67.5 lb/ft (-10%)
Depth
17.80 in (-0.6%)
Ix
637.0 in⁴ (-8.7%)

Heavier in WT18

WT18x80

Weight
80.0 lb/ft (+6.7%)
Depth
18.00 in (+0.6%)
Ix
740.0 in⁴ (+6.0%)

Closest Iₓ in WT18

WT18x85

Weight
85.0 lb/ft (+13%)
Depth
18.10 in (+1.1%)
Ix
786.0 in⁴ (+13%)

Similar weight in WT20

WT20x74.5

Weight
74.5 lb/ft (-0.7%)
Depth
19.10 in (+6.7%)
Ix
815.0 in⁴ (+17%)
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Source: AISC Shapes Database v16.0 · Methodology