Steel Beam Sizes / AISC / HSS Square / HSS 12x12x5/16

HSS 12x12x5/16 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 12x12x5/16 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 48.86 lb/ft 72.60 kg/m
Height 12.00 in 305.00 mm
Width 12.00 in 305.00 mm
Nominal tw 0.313 in 7.940 mm
Design tw 0.291 in 7.390 mm
Area 13.40 in² 8,650.00 mm²
Ix 304.00 in⁴ 127,000,000 mm⁴
Iy 304.00 in⁴ 127,000,000 mm⁴
Sx 50.70 in³ 831,000.00 mm³
Sy 50.70 in³ 831,000.00 mm³
Zx 58.60 in³ 960,000.00 mm³
Zy 58.60 in³ 960,000.00 mm³
rx 4.76 in 121.00 mm
ry 4.76 in 121.00 mm
J 474.00 in⁴ 197,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 12x12x5/16.

Lighter in Square HSS

HSS 8x8x1/2

Weight
48.9 lb/ft (0.0%)
Depth
8.00 in (-33%)
Ix
125.0 in⁴ (-59%)

Heavier in Square HSS

HSS 7x7x5/8

Weight
50.8 lb/ft (+4.0%)
Depth
7.00 in (-42%)
Ix
93.4 in⁴ (-69%)

Closest Iₓ in Square HSS

HSS 10x10x5/8

Weight
76.3 lb/ft (+56%)
Depth
10.00 in (-17%)
Ix
304.0 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology