Steel Beam Sizes / UK / RHS / RHS 220×120×8

RHS 220×120×8 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 220×120×8 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 27.01 lb/ft 40.20 kg/m
Height 8.66 in 220.00 mm
Width 4.72 in 120.00 mm
t 0.315 in 8.000 mm
Area 7.94 in² 5,120.00 mm²
Ix 76.88 in⁴ 32,000,000 mm⁴
Iy 29.55 in⁴ 12,300,000 mm⁴
Sx 17.76 in³ 291,000.00 mm³
Sy 12.51 in³ 205,000.00 mm³
Zx 22.09 in³ 362,000.00 mm³
Zy 14.40 in³ 236,000.00 mm³
rx 3.11 in 79.10 mm
ry 1.93 in 49.00 mm
J 68.47 in⁴ 28,500,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 220×120×8.

Lighter in Rectangular hollow sections

RHS 180×100×10

Weight
40.0 kg/m (-0.5%)
Depth
180.0 mm (-18%)
Ix
20,400,000 mm⁴ (-36%)

Heavier in Rectangular hollow sections

RHS 160×80×12.5

Weight
40.9 kg/m (+1.7%)
Depth
160.0 mm (-27%)
Ix
14,800,000 mm⁴ (-54%)

Closest Iₓ in Rectangular hollow sections

RHS 250×100×6.3

Weight
33.0 kg/m (-18%)
Depth
250.0 mm (+14%)
Ix
32,100,000 mm⁴ (+0.3%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology