Steel Beam Sizes / AISC / WT Tees / WT18x131

WT18x131 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

WT18x131 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 131.00 lb/ft 195.00 kg/m
Depth, d 18.40 in 467.00 mm
Flange width, bf 16.60 in 422.00 mm
tw 0.840 in 21.300 mm
tf 1.440 in 36.600 mm
Area 38.50 in² 24,800.00 mm²
Ix 1,110.00 in⁴ 462,000,000 mm⁴
Iy 545.00 in⁴ 227,000,000 mm⁴
Sx 77.50 in³ 1,270,000 mm³
Sy 65.80 in³ 1,080,000 mm³
Zx 137.00 in³ 2,250,000 mm³
Zy 102.00 in³ 1,670,000 mm³
rx 5.36 in 136.00 mm
ry 3.76 in 95.50 mm
J 20.80 in⁴ 8,660,000 mm⁴
Cw 185.00 in⁶ 49,700,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT18x131.

Lighter in WT18

WT18x128

Weight
128.0 lb/ft (-2.3%)
Depth
18.70 in (+1.6%)
Ix
1,210.0 in⁴ (+9.0%)

Heavier in WT18

WT18x141

Weight
141.0 lb/ft (+7.6%)
Depth
18.60 in (+1.1%)
Ix
1,190.0 in⁴ (+7.2%)

Closest Iₓ in WT18

WT18x116

Weight
116.0 lb/ft (-11%)
Depth
18.60 in (+1.1%)
Ix
1,080.0 in⁴ (-2.7%)

Similar weight in WT16

WT16.5x131.5

Weight
131.5 lb/ft (+0.4%)
Depth
17.30 in (-6.0%)
Ix
943.0 in⁴ (-15%)
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Source: AISC Shapes Database v16.0 · Methodology