Steel Beam Sizes / Europe / RHS / RHS 150×100×12.5

RHS 150×100×12.5 Steel Beam Dimensions and Properties

EN Rectangular hollow sections · v2026.1

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

Units

Section diagram

RHS 150×100×12.5 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 28.76 lb/ft 42.80 kg/m
Height 5.91 in 150.00 mm
Width 3.94 in 100.00 mm
t 0.492 in 12.500 mm
Area 8.46 in² 5,460.00 mm²
Ix 35.80 in⁴ 14,900,000 mm⁴
Iy 18.33 in⁴ 7,630,000 mm⁴
Sx 12.08 in³ 198,000.00 mm³
Sy 9.34 in³ 153,000.00 mm³
Zx 15.62 in³ 256,000.00 mm³
Zy 11.59 in³ 190,000.00 mm³
rx 2.06 in 52.20 mm
ry 1.47 in 37.40 mm
J 40.36 in⁴ 16,800,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 150×100×12.5.

Lighter in Rectangular hollow sections

RHS 300×200×5.6

Weight
42.7 kg/m (-0.2%)
Depth
300.0 mm (+100%)
Ix
70,200,000 mm⁴ (+371%)

Heavier in Rectangular hollow sections

RHS 200×100×10

Weight
43.1 kg/m (+0.7%)
Depth
200.0 mm (+33%)
Ix
26,600,000 mm⁴ (+79%)

Closest Iₓ in Rectangular hollow sections

RHS 160×80×12.5

Weight
40.9 kg/m (-4.4%)
Depth
160.0 mm (+6.7%)
Ix
14,800,000 mm⁴ (-0.7%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology