Steel Beam Sizes / AISC / HSS Rectangular / HSS 8x3x1/8

HSS 8x3x1/8 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 8x3x1/8 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 9.01 lb/ft 13.40 kg/m
Height 8.00 in 203.00 mm
Width 3.00 in 76.20 mm
Nominal tw 0.125 in 3.180 mm
Design tw 0.116 in 2.950 mm
Area 2.46 in² 1,590.00 mm²
Ix 19.30 in⁴ 8,030,000 mm⁴
Iy 4.20 in⁴ 1,750,000 mm⁴
Sx 4.83 in³ 79,100.00 mm³
Sy 2.80 in³ 45,900.00 mm³
Zx 6.11 in³ 100,000.00 mm³
Zy 3.07 in³ 50,300.00 mm³
rx 2.80 in 71.10 mm
ry 1.31 in 33.30 mm
J 11.30 in⁴ 4,700,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 8x3x1/8.

Lighter in Rectangular HSS

HSS 3-1/2x2-1/2x1/4

Weight
8.8 lb/ft (-2.2%)
Depth
3.50 in (-56%)
Ix
3.8 in⁴ (-80%)

Heavier in Rectangular HSS

HSS 5x3x3/16

Weight
9.4 lb/ft (+4.6%)
Depth
5.00 in (-38%)
Ix
8.5 in⁴ (-56%)

Closest Iₓ in Rectangular HSS

HSS 6x5x3/16

Weight
13.3 lb/ft (+47%)
Depth
6.00 in (-25%)
Ix
19.3 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology