Steel Beam Sizes / UK / RHS / RHS 400×300×16

RHS 400×300×16 Steel Beam Dimensions and Properties

UK Rectangular hollow sections · v2023.11

Analyze in Beam Calculator Back to RHS

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

Units

Section diagram

RHS 400×300×16 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 111.55 lb/ft 166.00 kg/m
Height 15.75 in 400.00 mm
Width 11.81 in 300.00 mm
t 0.630 in 16.000 mm
Area 32.71 in² 21,100.00 mm²
Ix 1,141.19 in⁴ 475,000,000 mm⁴
Iy 727.96 in⁴ 303,000,000 mm⁴
Sx 145.24 in³ 2,380,000 mm³
Sy 123.27 in³ 2,020,000 mm³
Zx 175.14 in³ 2,870,000 mm³
Zy 143.41 in³ 2,350,000 mm³
rx 5.91 in 150.00 mm
ry 4.72 in 120.00 mm
J 1,400.66 in⁴ 583,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 400×300×16.

Lighter in Rectangular hollow sections

RHS 500×300×12.5

Weight
151.0 kg/m (-9.0%)
Depth
500.0 mm (+25%)
Ix
658,000,000 mm⁴ (+39%)

Heavier in Rectangular hollow sections

RHS 500×300×14.2

Weight
170.0 kg/m (+2.4%)
Depth
500.0 mm (+25%)
Ix
737,000,000 mm⁴ (+55%)

Closest Iₓ in Rectangular hollow sections

RHS 500×300×8.8

Weight
107.0 kg/m (-36%)
Depth
500.0 mm (+25%)
Ix
478,000,000 mm⁴ (+0.6%)
Analyze in Beam Calculator Compare in RHS finder

Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology