Steel Beam Sizes / CISC / HSS Square / HA305×305×13

HA305×305×13 Steel Beam Dimensions and Properties

CISC Square HSS · v12.1

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

Units

Section diagram

HA305×305×13 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 76.10 lb/ft 113.00 kg/m
Height 12.00 in 304.80 mm
Width 12.00 in 304.80 mm
Nominal tw 0.500 in 12.700 mm
Design tw 0.450 in 11.430 mm
Area 20.31 in² 13,100.00 mm²
Ix 444.46 in⁴ 185,000,000 mm⁴
Iy 444.46 in⁴ 185,000,000 mm⁴
Sx 73.84 in³ 1,210,000 mm³
Sy 73.84 in³ 1,210,000 mm³
Zx 87.26 in³ 1,430,000 mm³
Zy 87.26 in³ 1,430,000 mm³
rx 4.69 in 119.00 mm
ry 4.69 in 119.00 mm
J 706.34 in⁴ 294,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA305×305×13.

Lighter in Square HSS

HA356×356×9.5

Weight
102.0 kg/m (-10%)
Depth
355.6 mm (+17%)
Ix
233,000,000 mm⁴ (+26%)

Heavier in Square HSS

HA254×254×16

Weight
114.0 kg/m (+0.3%)
Depth
254.0 mm (-17%)
Ix
124,000,000 mm⁴ (-33%)

Closest Iₓ in Square HSS

HA356×356×7.9

Weight
85.4 kg/m (-24%)
Depth
355.6 mm (+17%)
Ix
198,000,000 mm⁴ (+7.0%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology