Steel Beam Sizes / AISC / HSS Rectangular / HSS 12x8x5/8

HSS 12x8x5/8 Steel Beam Dimensions and Properties

AISC Rectangular HSS · v16.0

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

Units

Section diagram

HSS 12x8x5/8 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 76.33 lb/ft 113.00 kg/m
Height 12.00 in 305.00 mm
Width 8.00 in 203.00 mm
Nominal tw 0.625 in 15.900 mm
Design tw 0.581 in 14.800 mm
Area 21.00 in² 13,500.00 mm²
Ix 397.00 in⁴ 165,000,000 mm⁴
Iy 210.00 in⁴ 87,400,000 mm⁴
Sx 66.10 in³ 1,080,000 mm³
Sy 52.50 in³ 860,000.00 mm³
Zx 82.10 in³ 1,350,000 mm³
Zy 61.90 in³ 1,010,000 mm³
rx 4.34 in 110.00 mm
ry 3.16 in 80.30 mm
J 454.00 in⁴ 189,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 12x8x5/8.

Lighter in Rectangular HSS

HSS 14x10x1/2

Weight
76.1 lb/ft (-0.3%)
Depth
14.00 in (+17%)
Ix
573.0 in⁴ (+44%)

Heavier in Rectangular HSS

HSS 20x12x3/8

Weight
78.5 lb/ft (+2.9%)
Depth
20.00 in (+67%)
Ix
1,200.0 in⁴ (+202%)

Closest Iₓ in Rectangular HSS

HSS 12x10x1/2

Weight
69.3 lb/ft (-9.2%)
Depth
12.00 in (0.0%)
Ix
395.0 in⁴ (-0.5%)
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Source: AISC Shapes Database v16.0 · Methodology