Steel Beam Sizes / UK / Universal Beams / UB 1000×400×748

UB 1000×400×748 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 1000×400×748 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 502.63 lb/ft 748.00 kg/m
Depth, d 42.05 in 1,068.00 mm
Flange width, bf 16.42 in 417.00 mm
tw 1.535 in 39.000 mm
tf 2.756 in 70.000 mm
Area 147.72 in² 95,300.00 mm²
Ix 41,611.47 in⁴ 17,320,000,000 mm⁴
Iy 2,044.54 in⁴ 851,000,000 mm⁴
Sx 1,977.17 in³ 32,400,000 mm³
Sy 248.98 in³ 4,080,000 mm³
Zx 2,312.80 in³ 37,900,000 mm³
Zy 394.21 in³ 6,460,000 mm³
rx 16.77 in 426.00 mm
ry 3.72 in 94.50 mm
J 278.69 in⁴ 116,000,000 mm⁴
Cw 784,252.78 in⁶ 210,600,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 1000×400×748.

Lighter in Universal beams

UB 920×420×725

Weight
725.0 kg/m (-3.1%)
Depth
999.0 mm (-6.5%)
Ix
14,920,000,000 mm⁴ (-14%)

Heavier in Universal beams

UB 920×420×787

Weight
787.0 kg/m (+5.2%)
Depth
1,011.0 mm (-5.3%)
Ix
16,460,000,000 mm⁴ (-5.0%)

Closest Iₓ in Universal beams

UB 1100×400×607

Weight
607.0 kg/m (-19%)
Depth
1,138.0 mm (+6.6%)
Ix
16,240,000,000 mm⁴ (-6.2%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology