Steel Beam Sizes / AISC / WT Tees / WT18x264.5

WT18x264.5 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

WT18x264.5 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 264.50 lb/ft 394.00 kg/m
Depth, d 19.90 in 505.00 mm
Flange width, bf 17.20 in 437.00 mm
tw 1.610 in 40.900 mm
tf 2.910 in 73.900 mm
Area 77.80 in² 50,200.00 mm²
Ix 2,440.00 in⁴ 1,020,000,000 mm⁴
Iy 1,240.00 in⁴ 516,000,000 mm⁴
Sx 164.00 in³ 2,690,000 mm³
Sy 145.00 in³ 2,380,000 mm³
Zx 298.00 in³ 4,880,000 mm³
Zy 227.00 in³ 3,720,000 mm³
rx 5.60 in 142.00 mm
ry 4.00 in 102.00 mm
J 163.00 in⁴ 67,800,000 mm⁴
Cw 1,600.00 in⁶ 430,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT18x264.5.

Lighter in WT18

WT18x243.5

Weight
243.5 lb/ft (-7.9%)
Depth
19.70 in (-1.0%)
Ix
2,220.0 in⁴ (-9.0%)

Heavier in WT18

WT18x326

Weight
326.0 lb/ft (+23%)
Depth
20.50 in (+3.0%)
Ix
3,160.0 in⁴ (+30%)

Closest Iₓ in WT18

WT18x220.5

Weight
220.5 lb/ft (-17%)
Depth
19.40 in (-2.5%)
Ix
1,980.0 in⁴ (-19%)

Similar weight in WT20

WT20x251.5

Weight
251.5 lb/ft (-4.9%)
Depth
21.00 in (+5.5%)
Ix
2,730.0 in⁴ (+12%)
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Source: AISC Shapes Database v16.0 · Methodology