Steel Beam Sizes / AISC / WT Tees / WT18x220.5

WT18x220.5 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

WT18x220.5 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 220.50 lb/ft 328.00 kg/m
Depth, d 19.40 in 493.00 mm
Flange width, bf 17.00 in 432.00 mm
tw 1.360 in 34.500 mm
tf 2.440 in 62.000 mm
Area 64.90 in² 41,900.00 mm²
Ix 1,980.00 in⁴ 824,000,000 mm⁴
Iy 997.00 in⁴ 415,000,000 mm⁴
Sx 134.00 in³ 2,200,000 mm³
Sy 117.00 in³ 1,920,000 mm³
Zx 242.00 in³ 3,970,000 mm³
Zy 184.00 in³ 3,020,000 mm³
rx 5.52 in 140.00 mm
ry 3.92 in 99.60 mm
J 96.60 in⁴ 40,200,000 mm⁴
Cw 914.00 in⁶ 245,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT18x220.5.

Lighter in WT18

WT18x197.5

Weight
197.5 lb/ft (-10%)
Depth
19.20 in (-1.0%)
Ix
1,740.0 in⁴ (-12%)

Heavier in WT18

WT18x243.5

Weight
243.5 lb/ft (+10%)
Depth
19.70 in (+1.5%)
Ix
2,220.0 in⁴ (+12%)

Closest Iₓ in WT18

WT18x193.5

Weight
193.5 lb/ft (-12%)
Depth
19.50 in (+0.5%)
Ix
1,910.0 in⁴ (-3.5%)

Similar weight in WT20

WT20x215.5

Weight
215.5 lb/ft (-2.3%)
Depth
20.60 in (+6.2%)
Ix
2,290.0 in⁴ (+16%)
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Source: AISC Shapes Database v16.0 · Methodology