Steel Beam Sizes / AISC / HSS Square / HSS 12x12x3/8

HSS 12x12x3/8 Steel Beam Dimensions and Properties

AISC Square HSS · v16.0

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

Units

Section diagram

HSS 12x12x3/8 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 58.10 lb/ft 86.30 kg/m
Height 12.00 in 305.00 mm
Width 12.00 in 305.00 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.349 in 8.860 mm
Area 16.00 in² 10,300.00 mm²
Ix 357.00 in⁴ 149,000,000 mm⁴
Iy 357.00 in⁴ 149,000,000 mm⁴
Sx 59.50 in³ 975,000.00 mm³
Sy 59.50 in³ 975,000.00 mm³
Zx 69.20 in³ 1,130,000 mm³
Zy 69.20 in³ 1,130,000 mm³
rx 4.73 in 120.00 mm
ry 4.73 in 120.00 mm
J 561.00 in⁴ 234,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 12x12x3/8.

Lighter in Square HSS

HSS 14x14x5/16

Weight
57.4 lb/ft (-1.3%)
Depth
14.00 in (+17%)
Ix
490.0 in⁴ (+37%)

Heavier in Square HSS

HSS 8x8x5/8

Weight
59.3 lb/ft (+2.1%)
Depth
8.00 in (-33%)
Ix
146.0 in⁴ (-59%)

Closest Iₓ in Square HSS

HSS 10x10x3/4

Weight
89.5 lb/ft (+54%)
Depth
10.00 in (-17%)
Ix
347.0 in⁴ (-2.8%)
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Source: AISC Shapes Database v16.0 · Methodology