Steel Beam Sizes / CISC / WT Tees / WT345×120

WT345×120 Steel Beam Dimensions and Properties

CISC Structural tees · v12.1

Analyze in Beam Calculator Back to WT Tees

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

Units

Section diagram

WT345×120 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 80.50 lb/ft 120.00 kg/m
Depth, d 13.82 in 351.00 mm
Flange width, bf 14.02 in 356.00 mm
tw 0.661 in 16.800 mm
tf 1.079 in 27.400 mm
Area 23.72 in² 15,300.00 mm²
Ix 374.79 in⁴ 156,000,000 mm⁴
Iy 247.46 in⁴ 103,000,000 mm⁴
Sx 34.60 in³ 567,000.00 mm³
Sy 35.39 in³ 580,000.00 mm³
rx 3.98 in 101.00 mm
ry 3.23 in 82.10 mm
J 7.28 in⁴ 3,030,000 mm⁴
Cw 42.82 in⁶ 11,500,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT345×120.

Lighter in WT345

WT345×108.5

Weight
108.5 kg/m (-9.3%)
Depth
348.0 mm (-0.9%)
Ix
140,000,000 mm⁴ (-10%)

Heavier in WT345

WT345×132.5

Weight
132.5 kg/m (+11%)
Depth
353.0 mm (+0.6%)
Ix
172,000,000 mm⁴ (+10%)

Closest Iₓ in WT345

WT345×85

Weight
85.0 kg/m (-29%)
Depth
347.0 mm (-1.1%)
Ix
121,000,000 mm⁴ (-22%)

Similar weight in WT305

WT305×120.5

Weight
120.5 kg/m (+0.6%)
Depth
318.0 mm (-9.4%)
Ix
123,000,000 mm⁴ (-21%)
Analyze in Beam Calculator Compare in WT Tees finder

Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology