Steel Beam Sizes / AISC / WT Tees / WT9x129

WT9x129 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

WT9x129 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 129.00 lb/ft 192.00 kg/m
Depth, d 10.70 in 272.00 mm
Flange width, bf 11.80 in 300.00 mm
tw 1.280 in 32.500 mm
tf 2.300 in 58.400 mm
Area 38.00 in² 24,500.00 mm²
Ix 298.00 in⁴ 124,000,000 mm⁴
Iy 314.00 in⁴ 131,000,000 mm⁴
Sx 37.00 in³ 606,000.00 mm³
Sy 53.40 in³ 875,000.00 mm³
Zx 71.00 in³ 1,160,000 mm³
Zy 83.10 in³ 1,360,000 mm³
rx 2.80 in 71.10 mm
ry 2.88 in 73.20 mm
J 51.10 in⁴ 21,300,000 mm⁴
Cw 189.00 in⁶ 50,800,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT9x129.

Lighter in WT9

WT9x117

Weight
117.0 lb/ft (-9.3%)
Depth
10.50 in (-1.9%)
Ix
261.0 in⁴ (-12%)

Heavier in WT9

WT9x141.5

Weight
141.5 lb/ft (+9.7%)
Depth
10.90 in (+1.9%)
Ix
337.0 in⁴ (+13%)

Closest Iₓ in WT9

WT9x105.5

Weight
105.5 lb/ft (-18%)
Depth
10.30 in (-3.7%)
Ix
229.0 in⁴ (-23%)

Similar weight in WT10

WT10.5x124

Weight
124.0 lb/ft (-3.9%)
Depth
11.90 in (+11%)
Ix
368.0 in⁴ (+23%)
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Source: AISC Shapes Database v16.0 · Methodology