Steel Beam Sizes / UK / RHS / RHS 300×100×10

RHS 300×100×10 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 300×100×10 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 39.51 lb/ft 58.80 kg/m
Height 11.81 in 300.00 mm
Width 3.94 in 100.00 mm
t 0.394 in 10.000 mm
Area 11.61 in² 7,490.00 mm²
Ix 182.83 in⁴ 76,100,000 mm⁴
Iy 30.75 in⁴ 12,800,000 mm⁴
Sx 31.00 in³ 508,000.00 mm³
Sy 15.56 in³ 255,000.00 mm³
Zx 40.64 in³ 666,000.00 mm³
Zy 18.06 in³ 296,000.00 mm³
rx 3.98 in 101.00 mm
ry 1.63 in 41.30 mm
J 88.41 in⁴ 36,800,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 300×100×10.

Lighter in Rectangular hollow sections

RHS 350×250×6.3

Weight
57.8 kg/m (-1.7%)
Depth
350.0 mm (+17%)
Ix
132,000,000 mm⁴ (+73%)

Heavier in Rectangular hollow sections

RHS 200×100×14.2

Weight
58.9 kg/m (+0.2%)
Depth
200.0 mm (-33%)
Ix
34,200,000 mm⁴ (-55%)

Closest Iₓ in Rectangular hollow sections

RHS 350×150×5

Weight
38.3 kg/m (-35%)
Depth
350.0 mm (+17%)
Ix
76,600,000 mm⁴ (+0.7%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology