Steel Beam Sizes / AISC / WT Tees / WT20x74.5

WT20x74.5 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

WT20x74.5 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 74.50 lb/ft 111.00 kg/m
Depth, d 19.10 in 485.00 mm
Flange width, bf 11.80 in 300.00 mm
tw 0.630 in 16.000 mm
tf 0.830 in 21.100 mm
Area 21.90 in² 14,100.00 mm²
Ix 815.00 in⁴ 339,000,000 mm⁴
Iy 114.00 in⁴ 47,500,000 mm⁴
Sx 59.70 in³ 978,000.00 mm³
Sy 19.40 in³ 318,000.00 mm³
Zx 108.00 in³ 1,770,000 mm³
Zy 30.90 in³ 506,000.00 mm³
rx 6.10 in 155.00 mm
ry 2.29 in 58.20 mm
J 4.66 in⁴ 1,940,000 mm⁴
Cw 51.90 in⁶ 13,900,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT20x74.5.

Heavier in WT20

WT20x83.5

Weight
83.5 lb/ft (+12%)
Depth
19.30 in (+1.0%)
Ix
899.0 in⁴ (+10%)

Closest Iₓ in WT20

WT20x91.5

Weight
91.5 lb/ft (+23%)
Depth
19.50 in (+2.1%)
Ix
955.0 in⁴ (+17%)

Similar weight in WT18

WT18x75

Weight
75.0 lb/ft (+0.7%)
Depth
17.90 in (-6.3%)
Ix
698.0 in⁴ (-14%)
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Source: AISC Shapes Database v16.0 · Methodology