Steel Beam Sizes / AISC / WT Tees / WT20x99.5

WT20x99.5 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

WT20x99.5 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 99.50 lb/ft 148.00 kg/m
Depth, d 19.30 in 490.00 mm
Flange width, bf 15.80 in 401.00 mm
tw 0.650 in 16.500 mm
tf 1.070 in 27.200 mm
Area 29.20 in² 18,800.00 mm²
Ix 988.00 in⁴ 411,000,000 mm⁴
Iy 347.00 in⁴ 144,000,000 mm⁴
Sx 66.50 in³ 1,090,000 mm³
Sy 44.10 in³ 723,000.00 mm³
Zx 117.00 in³ 1,920,000 mm³
Zy 68.20 in³ 1,120,000 mm³
rx 5.81 in 148.00 mm
ry 3.45 in 87.60 mm
J 9.12 in⁴ 3,800,000 mm⁴
Cw 83.50 in⁶ 22,400,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT20x99.5.

Lighter in WT20

WT20x91.5

Weight
91.5 lb/ft (-8.0%)
Depth
19.50 in (+1.0%)
Ix
955.0 in⁴ (-3.3%)

Heavier in WT20

WT20x105.5

Weight
105.5 lb/ft (+6.0%)
Depth
19.70 in (+2.1%)
Ix
1,120.0 in⁴ (+13%)

Closest Iₓ in WT20

WT20x107.5

Weight
107.5 lb/ft (+8.0%)
Depth
19.50 in (+1.0%)
Ix
1,030.0 in⁴ (+4.3%)

Similar weight in WT18

WT18x97

Weight
97.0 lb/ft (-2.5%)
Depth
18.20 in (-5.7%)
Ix
901.0 in⁴ (-8.8%)
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Source: AISC Shapes Database v16.0 · Methodology