Steel Beam Sizes / UK / Universal Columns / UC 305×305×158

UC 305×305×158 Steel Beam Dimensions and Properties

UK Universal columns · v2023.11

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

Units

Section diagram

UC 305×305×158 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 106.17 lb/ft 158.00 kg/m
Depth, d 12.88 in 327.10 mm
Flange width, bf 12.25 in 311.20 mm
tw 0.622 in 15.800 mm
tf 0.984 in 25.000 mm
Area 31.16 in² 20,100.00 mm²
Ix 932.17 in⁴ 388,000,000 mm⁴
Iy 302.72 in⁴ 126,000,000 mm⁴
Sx 144.63 in³ 2,370,000 mm³
Sy 49.31 in³ 808,000.00 mm³
Zx 163.54 in³ 2,680,000 mm³
Zy 75.06 in³ 1,230,000 mm³
rx 5.47 in 139.00 mm
ry 3.11 in 79.00 mm
J 9.08 in⁴ 3,780,000 mm⁴
Cw 10,650.35 in⁶ 2,860,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UC 305×305×158.

Lighter in Universal columns

UC 356×368×153

Weight
153.0 kg/m (-3.2%)
Depth
362.0 mm (+11%)
Ix
486,000,000 mm⁴ (+25%)

Heavier in Universal columns

UC 254×254×167

Weight
167.0 kg/m (+5.7%)
Depth
289.1 mm (-12%)
Ix
300,000,000 mm⁴ (-23%)

Closest Iₓ in Universal columns

UC 356×368×129

Weight
129.0 kg/m (-18%)
Depth
355.6 mm (+8.7%)
Ix
402,000,000 mm⁴ (+3.6%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology