Steel Beam Sizes / AISC / WT Tees / WT12x34

WT12x34 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

WT12x34 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 34.00 lb/ft 50.50 kg/m
Depth, d 11.90 in 302.00 mm
Flange width, bf 8.97 in 228.00 mm
tw 0.415 in 10.500 mm
tf 0.585 in 14.900 mm
Area 10.00 in² 6,450.00 mm²
Ix 137.00 in⁴ 57,000,000 mm⁴
Iy 35.20 in⁴ 14,700,000 mm⁴
Sx 15.60 in³ 256,000.00 mm³
Sy 7.85 in³ 129,000.00 mm³
Zx 27.90 in³ 457,000.00 mm³
Zy 12.30 in³ 202,000.00 mm³
rx 3.70 in 94.00 mm
ry 1.87 in 47.50 mm
J 0.93 in⁴ 388,000.00 mm⁴
Cw 4.08 in⁶ 1,100,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT12x34.

Lighter in WT12

WT12x31

Weight
31.0 lb/ft (-8.8%)
Depth
11.90 in (0.0%)
Ix
131.0 in⁴ (-4.4%)

Heavier in WT12

WT12x38

Weight
38.0 lb/ft (+12%)
Depth
12.00 in (+0.8%)
Ix
151.0 in⁴ (+10%)

Closest Iₓ in WT12

WT12x27.5

Weight
27.5 lb/ft (-19%)
Depth
11.80 in (-0.8%)
Ix
117.0 in⁴ (-15%)

Similar weight in WT10

WT10.5x34

Weight
34.0 lb/ft (0.0%)
Depth
10.60 in (-11%)
Ix
103.0 in⁴ (-25%)
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Source: AISC Shapes Database v16.0 · Methodology