Steel Beam Sizes / UK / Rolled Steel Joists / RSJ 254×203×82

RSJ 254×203×82 Steel Beam Dimensions and Properties

UK Rolled steel joists · v2023.11

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

Units

Section diagram

RSJ 254×203×82 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 55.10 lb/ft 82.00 kg/m
Depth, d 10.00 in 254.00 mm
Flange width, bf 7.99 in 203.00 mm
Area 16.28 in² 10,500.00 mm²
Ix 288.30 in⁴ 120,000,000 mm⁴
Iy 54.78 in⁴ 22,800,000 mm⁴
Sx 57.79 in³ 947,000.00 mm³
Sy 13.67 in³ 224,000.00 mm³
Zx 65.91 in³ 1,080,000 mm³
Zy 22.64 in³ 371,000.00 mm³
rx 4.21 in 107.00 mm
ry 1.84 in 46.70 mm
J 3.65 in⁴ 1,520,000 mm⁴
Cw 1,161.86 in⁶ 312,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RSJ 254×203×82.

Lighter in Rolled steel joists

RSJ 203×152×52

Weight
52.0 kg/m (-37%)
Depth
203.2 mm (-20%)
Ix
48,000,000 mm⁴ (-60%)

Closest Iₓ in Rolled steel joists

RSJ 254×114×37

Weight
37.0 kg/m (-55%)
Depth
254.0 mm (0.0%)
Ix
50,800,000 mm⁴ (-58%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology