Steel Beam Sizes / CISC / WT Tees / WT180×81

WT180×81 Steel Beam Dimensions and Properties

CISC Structural tees · v12.1

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

Units

Section diagram

WT180×81 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 54.50 lb/ft 81.00 kg/m
Depth, d 7.17 in 182.00 mm
Flange width, bf 14.61 in 371.00 mm
tw 0.524 in 13.300 mm
tf 0.858 in 21.800 mm
Area 15.97 in² 10,300.00 mm²
Ix 45.17 in⁴ 18,800,000 mm⁴
Iy 222.95 in⁴ 92,800,000 mm⁴
Sx 7.57 in³ 124,000.00 mm³
Sy 30.51 in³ 500,000.00 mm³
rx 1.68 in 42.70 mm
ry 3.74 in 94.90 mm
J 3.53 in⁴ 1,470,000 mm⁴
Cw 14.90 in⁶ 4,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT180×81.

Lighter in WT180

WT180×73.5

Weight
73.5 kg/m (-9.2%)
Depth
180.0 mm (-1.1%)
Ix
17,000,000 mm⁴ (-9.6%)

Heavier in WT180

WT180×89.5

Weight
89.5 kg/m (+10%)
Depth
184.0 mm (+1.1%)
Ix
21,600,000 mm⁴ (+15%)

Closest Iₓ in WT180

WT180×61

Weight
61.0 kg/m (-25%)
Depth
182.0 mm (0.0%)
Ix
17,300,000 mm⁴ (-8.0%)

Similar weight in WT155

WT155×79

Weight
79.0 kg/m (-2.8%)
Depth
164.0 mm (-9.9%)
Ix
15,200,000 mm⁴ (-19%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology