Steel Beam Sizes / AISC / WT Tees / WT9x20

WT9x20 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

WT9x20 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 20.00 lb/ft 30.00 kg/m
Depth, d 8.95 in 227.00 mm
Flange width, bf 6.02 in 153.00 mm
tw 0.315 in 8.000 mm
tf 0.525 in 13.300 mm
Area 5.88 in² 3,790.00 mm²
Ix 44.80 in⁴ 18,600,000 mm⁴
Iy 9.55 in⁴ 3,980,000 mm⁴
Sx 6.73 in³ 110,000.00 mm³
Sy 3.17 in³ 51,900.00 mm³
Zx 12.00 in³ 197,000.00 mm³
Zy 4.97 in³ 81,400.00 mm³
rx 2.76 in 70.10 mm
ry 1.27 in 32.30 mm
J 0.40 in⁴ 168,000.00 mm⁴
Cw 0.79 in⁶ 212,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT9x20.

Lighter in WT9

WT9x17.5

Weight
17.5 lb/ft (-13%)
Depth
8.85 in (-1.1%)
Ix
40.1 in⁴ (-10%)

Heavier in WT9

WT9x23

Weight
23.0 lb/ft (+15%)
Depth
9.03 in (+0.9%)
Ix
52.1 in⁴ (+16%)

Closest Iₓ in WT9

WT9x25

Weight
25.0 lb/ft (+25%)
Depth
9.00 in (+0.6%)
Ix
53.5 in⁴ (+19%)

Similar weight in WT8

WT8x20

Weight
20.0 lb/ft (0.0%)
Depth
8.01 in (-11%)
Ix
33.1 in⁴ (-26%)
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Source: AISC Shapes Database v16.0 · Methodology