Steel Beam Sizes / AISC / HSS Rectangular / HSS 24x18x3/8

HSS 24x18x3/8 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 24x18x3/8 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 104.04 lb/ft 155.00 kg/m
Height 24.00 in 610.00 mm
Width 18.00 in 457.00 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.349 in 8.860 mm
Area 28.50 in² 18,400.00 mm²
Ix 2,450.00 in⁴ 1,020,000,000 mm⁴
Iy 1,580.00 in⁴ 658,000,000 mm⁴
Sx 204.00 in³ 3,340,000 mm³
Sy 176.00 in³ 2,880,000 mm³
Zx 240.00 in³ 3,930,000 mm³
Zy 197.00 in³ 3,230,000 mm³
rx 9.27 in 235.00 mm
ry 7.45 in 189.00 mm
J 2,970.00 in⁴ 1,240,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 24x18x3/8.

Lighter in Rectangular HSS

HSS 20x12x1/2

Weight
103.3 lb/ft (-0.7%)
Depth
20.00 in (-17%)
Ix
1,550.0 in⁴ (-37%)

Heavier in Rectangular HSS

HSS 24x20x3/8

Weight
109.2 lb/ft (+4.9%)
Depth
24.00 in (0.0%)
Ix
2,640.0 in⁴ (+7.8%)

Closest Iₓ in Rectangular HSS

HSS 20x12x7/8

Weight
173.4 lb/ft (+67%)
Depth
20.00 in (-17%)
Ix
2,480.0 in⁴ (+1.2%)
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Source: AISC Shapes Database v16.0 · Methodology