Steel Beam Sizes / UK / Universal Beams / UB 920×420×344

UB 920×420×344 Steel Beam Dimensions and Properties

UK Universal beams · v2023.11

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

Units

Section diagram

UB 920×420×344 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 231.16 lb/ft 344.00 kg/m
Depth, d 36.50 in 927.00 mm
Flange width, bf 16.46 in 418.00 mm
tw 0.760 in 19.300 mm
tf 1.260 in 32.000 mm
Area 67.74 in² 43,700.00 mm²
Ix 15,496.19 in⁴ 6,450,000,000 mm⁴
Iy 936.98 in⁴ 390,000,000 mm⁴
Sx 848.23 in³ 13,900,000 mm³
Sy 114.11 in³ 1,870,000 mm³
Zx 958.07 in³ 15,700,000 mm³
Zy 175.75 in³ 2,880,000 mm³
rx 15.12 in 384.00 mm
ry 3.72 in 94.50 mm
J 27.87 in⁴ 11,600,000 mm⁴
Cw 290,836.38 in⁶ 78,100,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 920×420×344.

Lighter in Universal beams

UB 1100×400×343

Weight
343.0 kg/m (-0.3%)
Depth
1,090.0 mm (+18%)
Ix
8,780,000,000 mm⁴ (+36%)

Heavier in Universal beams

UB 914×305×345

Weight
345.0 kg/m (+0.3%)
Depth
943.0 mm (+1.7%)
Ix
6,260,000,000 mm⁴ (-2.9%)

Closest Iₓ in Universal beams

UB 1016×305×314

Weight
314.0 kg/m (-8.7%)
Depth
1,000.0 mm (+7.9%)
Ix
6,440,000,000 mm⁴ (-0.2%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology