Steel Beam Sizes / AISC / HSS Rectangular / HSS 20x8x1

HSS 20x8x1 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 20x8x1 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 168.18 lb/ft 250.00 kg/m
Height 20.00 in 508.00 mm
Width 8.00 in 203.00 mm
Nominal tw 1.000 in 25.400 mm
Design tw 0.930 in 23.600 mm
Area 46.40 in² 29,900.00 mm²
Ix 2,060.00 in⁴ 857,000,000 mm⁴
Iy 472.00 in⁴ 196,000,000 mm⁴
Sx 206.00 in³ 3,380,000 mm³
Sy 118.00 in³ 1,930,000 mm³
Zx 273.00 in³ 4,470,000 mm³
Zy 141.00 in³ 2,310,000 mm³
rx 6.67 in 169.00 mm
ry 3.19 in 81.00 mm
J 1,320.00 in⁴ 549,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 20x8x1.

Lighter in Rectangular HSS

HSS 22x18x5/8

Weight
161.4 lb/ft (-4.0%)
Depth
22.00 in (+10%)
Ix
3,170.0 in⁴ (+54%)

Heavier in Rectangular HSS

HSS 22x20x5/8

Weight
169.9 lb/ft (+1.0%)
Depth
22.00 in (+10%)
Ix
3,440.0 in⁴ (+67%)

Closest Iₓ in Rectangular HSS

HSS 24x14x3/8

Weight
93.8 lb/ft (-44%)
Depth
24.00 in (+20%)
Ix
2,060.0 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology