Steel Beam Sizes / UK / Universal Columns / UC 305×305×283

UC 305×305×283 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 305×305×283 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 190.17 lb/ft 283.00 kg/m
Depth, d 14.38 in 365.30 mm
Flange width, bf 12.69 in 322.20 mm
tw 1.055 in 26.800 mm
tf 1.736 in 44.100 mm
Area 55.80 in² 36,000.00 mm²
Ix 1,895.58 in⁴ 789,000,000 mm⁴
Iy 591.02 in⁴ 246,000,000 mm⁴
Sx 263.62 in³ 4,320,000 mm³
Sy 93.37 in³ 1,530,000 mm³
Zx 311.22 in³ 5,100,000 mm³
Zy 142.80 in³ 2,340,000 mm³
rx 5.83 in 148.00 mm
ry 3.26 in 82.70 mm
J 48.77 in⁴ 20,300,000 mm⁴
Cw 23,609.51 in⁶ 6,340,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UC 305×305×283.

Lighter in Universal columns

UC 305×305×240

Weight
240.0 kg/m (-15%)
Depth
352.5 mm (-3.5%)
Ix
642,000,000 mm⁴ (-19%)

Heavier in Universal columns

UC 356×406×287

Weight
287.0 kg/m (+1.4%)
Depth
393.6 mm (+7.7%)
Ix
999,000,000 mm⁴ (+27%)

Closest Iₓ in Universal columns

UC 356×406×235

Weight
235.0 kg/m (-17%)
Depth
381.0 mm (+4.3%)
Ix
791,000,000 mm⁴ (+0.3%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology