Steel Beam Sizes / UK / RHS / RHS 300×200×8

RHS 300×200×8 Steel Beam Dimensions and Properties

UK Rectangular hollow sections · v2023.11

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

Units

Section diagram

RHS 300×200×8 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 40.52 lb/ft 60.30 kg/m
Height 11.81 in 300.00 mm
Width 7.87 in 200.00 mm
t 0.315 in 8.000 mm
Area 11.90 in² 7,680.00 mm²
Ix 233.52 in⁴ 97,200,000 mm⁴
Iy 124.45 in⁴ 51,800,000 mm⁴
Sx 39.54 in³ 648,000.00 mm³
Sy 31.61 in³ 518,000.00 mm³
Zx 47.54 in³ 779,000.00 mm³
Zy 35.94 in³ 589,000.00 mm³
rx 4.45 in 113.00 mm
ry 3.24 in 82.20 mm
J 254.67 in⁴ 106,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 300×200×8.

Lighter in Rectangular hollow sections

RHS 300×250×7.1

Weight
59.3 kg/m (-1.7%)
Depth
300.0 mm (0.0%)
Ix
103,000,000 mm⁴ (+6.0%)

Heavier in Rectangular hollow sections

RHS 220×120×12.5

Weight
60.5 kg/m (+0.3%)
Depth
220.0 mm (-27%)
Ix
45,600,000 mm⁴ (-53%)

Closest Iₓ in Rectangular hollow sections

RHS 350×150×6.3

Weight
47.9 kg/m (-21%)
Depth
350.0 mm (+17%)
Ix
94,800,000 mm⁴ (-2.5%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology