Steel Beam Sizes / AISC / WT Tees / WT18x243.5

WT18x243.5 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

WT18x243.5 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 243.50 lb/ft 363.00 kg/m
Depth, d 19.70 in 500.00 mm
Flange width, bf 17.10 in 434.00 mm
tw 1.500 in 38.100 mm
tf 2.680 in 68.100 mm
Area 71.70 in² 46,300.00 mm²
Ix 2,220.00 in⁴ 924,000,000 mm⁴
Iy 1,120.00 in⁴ 466,000,000 mm⁴
Sx 150.00 in³ 2,460,000 mm³
Sy 131.00 in³ 2,150,000 mm³
Zx 272.00 in³ 4,460,000 mm³
Zy 206.00 in³ 3,380,000 mm³
rx 5.57 in 141.00 mm
ry 3.96 in 101.00 mm
J 128.00 in⁴ 53,300,000 mm⁴
Cw 1,250.00 in⁶ 336,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT18x243.5.

Lighter in WT18

WT18x220.5

Weight
220.5 lb/ft (-9.4%)
Depth
19.40 in (-1.5%)
Ix
1,980.0 in⁴ (-11%)

Heavier in WT18

WT18x264.5

Weight
264.5 lb/ft (+8.6%)
Depth
19.90 in (+1.0%)
Ix
2,440.0 in⁴ (+9.9%)

Closest Iₓ in WT18

WT18x193.5

Weight
193.5 lb/ft (-21%)
Depth
19.50 in (-1.0%)
Ix
1,910.0 in⁴ (-14%)

Similar weight in WT20

WT20x251.5

Weight
251.5 lb/ft (+3.3%)
Depth
21.00 in (+6.6%)
Ix
2,730.0 in⁴ (+23%)
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Source: AISC Shapes Database v16.0 · Methodology