Steel Beam Sizes / UK / RHS / RHS 100×50×3.2

RHS 100×50×3.2 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 100×50×3.2 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 4.79 lb/ft 7.13 kg/m
Height 3.94 in 100.00 mm
Width 1.97 in 50.00 mm
t 0.126 in 3.200 mm
Area 1.41 in² 908.00 mm²
Ix 2.79 in⁴ 1,160,000 mm⁴
Iy 0.93 in⁴ 388,000.00 mm⁴
Sx 1.42 in³ 23,200.00 mm³
Sy 0.95 in³ 15,500.00 mm³
Zx 1.76 in³ 28,900.00 mm³
Zy 1.08 in³ 17,700.00 mm³
rx 1.41 in 35.70 mm
ry 0.81 in 20.70 mm
J 2.24 in⁴ 934,000.00 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 100×50×3.2.

Lighter in Rectangular hollow sections

RHS 80×40×4

Weight
6.9 kg/m (-3.2%)
Depth
80.0 mm (-20%)
Ix
682,000 mm⁴ (-41%)

Heavier in Rectangular hollow sections

RHS 90×50×3.6

Weight
7.4 kg/m (+3.8%)
Depth
90.0 mm (-10%)
Ix
983,000 mm⁴ (-15%)

Closest Iₓ in Rectangular hollow sections

RHS 90×50×4

Weight
8.2 kg/m (+14%)
Depth
90.0 mm (-10%)
Ix
1,070,000 mm⁴ (-7.8%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology