Steel Beam Sizes / AISC / WT Tees / WT20x165.5

WT20x165.5 Steel Beam Dimensions and Properties

AISC Structural tees · v16.0

Analyze in Beam Calculator Back to WT Tees

Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

WT20x165.5 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 165.50 lb/ft 247.00 kg/m
Depth, d 20.40 in 518.00 mm
Flange width, bf 12.20 in 310.00 mm
tw 1.220 in 31.000 mm
tf 2.130 in 54.100 mm
Area 48.80 in² 31,500.00 mm²
Ix 1,880.00 in⁴ 783,000,000 mm⁴
Iy 322.00 in⁴ 134,000,000 mm⁴
Sx 128.00 in³ 2,100,000 mm³
Sy 52.90 in³ 867,000.00 mm³
Zx 231.00 in³ 3,790,000 mm³
Zy 85.70 in³ 1,400,000 mm³
rx 6.21 in 158.00 mm
ry 2.57 in 65.30 mm
J 52.50 in⁴ 21,900,000 mm⁴
Cw 484.00 in⁶ 130,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT20x165.5.

Lighter in WT20

WT20x163.5

Weight
163.5 lb/ft (-1.2%)
Depth
20.40 in (0.0%)
Ix
1,840.0 in⁴ (-2.1%)

Heavier in WT20

WT20x181

Weight
181.0 lb/ft (+9.4%)
Depth
20.30 in (-0.5%)
Ix
1,870.0 in⁴ (-0.5%)

Closest Iₓ in WT20

WT20x186

Weight
186.0 lb/ft (+12%)
Depth
20.30 in (-0.5%)
Ix
1,930.0 in⁴ (+2.7%)

Similar weight in WT18

WT18x165

Weight
165.0 lb/ft (-0.3%)
Depth
18.80 in (-7.8%)
Ix
1,410.0 in⁴ (-25%)
Analyze in Beam Calculator Compare in WT Tees finder

Source: AISC Shapes Database v16.0 · Methodology