Steel Beam Sizes / AISC / HSS Rectangular / HSS 24x18x5/8

HSS 24x18x5/8 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 24x18x5/8 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 169.91 lb/ft 253.00 kg/m
Height 24.00 in 610.00 mm
Width 18.00 in 457.00 mm
Nominal tw 0.625 in 15.900 mm
Design tw 0.581 in 14.800 mm
Area 46.60 in² 30,100.00 mm²
Ix 3,900.00 in⁴ 1,620,000,000 mm⁴
Iy 2,510.00 in⁴ 1,040,000,000 mm⁴
Sx 325.00 in³ 5,330,000 mm³
Sy 279.00 in³ 4,570,000 mm³
Zx 386.00 in³ 6,330,000 mm³
Zy 318.00 in³ 5,210,000 mm³
rx 9.15 in 232.00 mm
ry 7.34 in 186.00 mm
J 4,810.00 in⁴ 2,000,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 24x18x5/8.

Lighter in Rectangular HSS

HSS 16x12x1

Weight
168.2 lb/ft (-1.0%)
Depth
16.00 in (-33%)
Ix
1,570.0 in⁴ (-60%)

Heavier in Rectangular HSS

HSS 20x16x3/4

Weight
171.2 lb/ft (+0.7%)
Depth
20.00 in (-17%)
Ix
2,710.0 in⁴ (-31%)

Closest Iₓ in Rectangular HSS

HSS 24x12x7/8

Weight
197.2 lb/ft (+16%)
Depth
24.00 in (0.0%)
Ix
3,910.0 in⁴ (+0.3%)
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Source: AISC Shapes Database v16.0 · Methodology