Steel Beam Sizes / AISC / WT Tees / WT20x91.5

WT20x91.5 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

WT20x91.5 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 91.50 lb/ft 136.00 kg/m
Depth, d 19.50 in 495.00 mm
Flange width, bf 11.80 in 300.00 mm
tw 0.650 in 16.500 mm
tf 1.200 in 30.500 mm
Area 26.70 in² 17,200.00 mm²
Ix 955.00 in⁴ 398,000,000 mm⁴
Iy 165.00 in⁴ 68,700,000 mm⁴
Sx 65.70 in³ 1,080,000 mm³
Sy 28.00 in³ 459,000.00 mm³
Zx 117.00 in³ 1,920,000 mm³
Zy 44.00 in³ 721,000.00 mm³
rx 5.98 in 152.00 mm
ry 2.49 in 63.20 mm
J 9.65 in⁴ 4,020,000 mm⁴
Cw 71.20 in⁶ 19,100,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT20x91.5.

Lighter in WT20

WT20x83.5

Weight
83.5 lb/ft (-8.7%)
Depth
19.30 in (-1.0%)
Ix
899.0 in⁴ (-5.9%)

Heavier in WT20

WT20x99.5

Weight
99.5 lb/ft (+8.7%)
Depth
19.30 in (-1.0%)
Ix
988.0 in⁴ (+3.5%)

Closest Iₓ in WT20

WT20x107.5

Weight
107.5 lb/ft (+17%)
Depth
19.50 in (0.0%)
Ix
1,030.0 in⁴ (+7.9%)

Similar weight in WT18

WT18x91

Weight
91.0 lb/ft (-0.5%)
Depth
18.20 in (-6.7%)
Ix
845.0 in⁴ (-12%)
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Source: AISC Shapes Database v16.0 · Methodology