Steel Beam Sizes / AISC / HSS Rectangular / HSS 24x18x5/16

HSS 24x18x5/16 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 24x18x5/16 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 87.14 lb/ft 130.00 kg/m
Height 24.00 in 610.00 mm
Width 18.00 in 457.00 mm
Nominal tw 0.313 in 7.950 mm
Design tw 0.291 in 7.390 mm
Area 23.90 in² 15,400.00 mm²
Ix 2,060.00 in⁴ 857,000,000 mm⁴
Iy 1,330.00 in⁴ 554,000,000 mm⁴
Sx 172.00 in³ 2,820,000 mm³
Sy 148.00 in³ 2,430,000 mm³
Zx 201.00 in³ 3,290,000 mm³
Zy 166.00 in³ 2,720,000 mm³
rx 9.30 in 236.00 mm
ry 7.47 in 190.00 mm
J 2,500.00 in⁴ 1,040,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 24x18x5/16.

Lighter in Rectangular HSS

HSS 12x10x5/8

Weight
84.8 lb/ft (-2.6%)
Depth
12.00 in (-50%)
Ix
472.0 in⁴ (-77%)

Heavier in Rectangular HSS

HSS 20x16x3/8

Weight
88.7 lb/ft (+1.8%)
Depth
20.00 in (-17%)
Ix
1,470.0 in⁴ (-29%)

Closest Iₓ in Rectangular HSS

HSS 20x8x1

Weight
168.2 lb/ft (+93%)
Depth
20.00 in (-17%)
Ix
2,060.0 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology