Steel Beam Sizes / CISC / WT Tees / WT345×108.5

WT345×108.5 Steel Beam Dimensions and Properties

CISC Structural tees · v12.1

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

Units

Section diagram

WT345×108.5 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 73.00 lb/ft 108.50 kg/m
Depth, d 13.70 in 348.00 mm
Flange width, bf 13.98 in 355.00 mm
tw 0.606 in 15.400 mm
tf 0.976 in 24.800 mm
Area 21.55 in² 13,900.00 mm²
Ix 336.35 in⁴ 140,000,000 mm⁴
Iy 222.47 in⁴ 92,600,000 mm⁴
Sx 31.37 in³ 514,000.00 mm³
Sy 31.85 in³ 522,000.00 mm³
rx 3.98 in 101.00 mm
ry 3.22 in 81.70 mm
J 5.45 in⁴ 2,270,000 mm⁴
Cw 31.91 in⁶ 8,570,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus WT345×108.5.

Lighter in WT345

WT345×85

Weight
85.0 kg/m (-22%)
Depth
347.0 mm (-0.3%)
Ix
121,000,000 mm⁴ (-14%)

Heavier in WT345

WT345×120

Weight
120.0 kg/m (+10%)
Depth
351.0 mm (+0.9%)
Ix
156,000,000 mm⁴ (+11%)

Closest Iₓ in WT345

WT345×132.5

Weight
132.5 kg/m (+22%)
Depth
353.0 mm (+1.4%)
Ix
172,000,000 mm⁴ (+23%)

Similar weight in WT305

WT305×108.5

Weight
108.5 kg/m (0.0%)
Depth
314.0 mm (-9.8%)
Ix
110,000,000 mm⁴ (-21%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology