Steel Beam Sizes / AISC / HSS Rectangular / HSS 3-1/2x2-1/2x3/8

HSS 3-1/2x2-1/2x3/8 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 3-1/2x2-1/2x3/8 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 12.17 lb/ft 18.00 kg/m
Height 3.50 in 88.90 mm
Width 2.50 in 63.50 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.349 in 8.860 mm
Area 3.39 in² 2,190.00 mm²
Ix 4.75 in⁴ 1,980,000 mm⁴
Iy 2.77 in⁴ 1,150,000 mm⁴
Sx 2.72 in³ 44,500.00 mm³
Sy 2.21 in³ 36,300.00 mm³
Zx 3.59 in³ 58,800.00 mm³
Zy 2.82 in³ 46,300.00 mm³
rx 1.18 in 30.10 mm
ry 0.90 in 23.00 mm
J 6.16 in⁴ 2,560,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 3-1/2x2-1/2x3/8.

Lighter in Rectangular HSS

HSS 6x4x3/16

Weight
12.0 lb/ft (-1.6%)
Depth
6.00 in (+71%)
Ix
16.4 in⁴ (+245%)

Heavier in Rectangular HSS

HSS 5x3x1/4

Weight
12.2 lb/ft (+0.3%)
Depth
5.00 in (+43%)
Ix
10.7 in⁴ (+125%)

Closest Iₓ in Rectangular HSS

HSS 5x2x1/8

Weight
5.6 lb/ft (-54%)
Depth
5.00 in (+43%)
Ix
4.7 in⁴ (-2.1%)
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Source: AISC Shapes Database v16.0 · Methodology