Steel Beam Sizes / UK / RHS / RHS 200×120×5

RHS 200×120×5 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 200×120×5 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 16.19 lb/ft 24.10 kg/m
Height 7.87 in 200.00 mm
Width 4.72 in 120.00 mm
t 0.197 in 5.000 mm
Area 4.76 in² 3,070.00 mm²
Ix 40.36 in⁴ 16,800,000 mm⁴
Iy 18.31 in⁴ 7,620,000 mm⁴
Sx 10.25 in³ 168,000.00 mm³
Sy 7.75 in³ 127,000.00 mm³
Zx 12.51 in³ 205,000.00 mm³
Zy 8.79 in³ 144,000.00 mm³
rx 2.91 in 74.00 mm
ry 1.96 in 49.80 mm
J 39.64 in⁴ 16,500,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 200×120×5.

Lighter in Rectangular hollow sections

RHS 180×100×5.6

Weight
23.4 kg/m (-2.9%)
Depth
180.0 mm (-10%)
Ix
12,700,000 mm⁴ (-24%)

Heavier in Rectangular hollow sections

RHS 120×60×10

Weight
24.3 kg/m (+0.8%)
Depth
120.0 mm (-40%)
Ix
4,880,000 mm⁴ (-71%)

Closest Iₓ in Rectangular hollow sections

RHS 180×60×12.5

Weight
40.9 kg/m (+70%)
Depth
180.0 mm (-10%)
Ix
16,800,000 mm⁴ (0.0%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology