Steel Beam Sizes / AISC / Double Angles / 2L8x4x7/16LLBB

2L8x4x7/16LLBB Steel Beam Dimensions and Properties

AISC Double angles · v16.0

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

2L8x4x7/16LLBB 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 34.40 lb/ft 51.20 kg/m
Width 4.00 in 102.00 mm
Height 8.00 in 203.00 mm
t 0.438 in 11.100 mm
Area 10.20 in² 6,580.00 mm²
Ix 68.40 in⁴ 28,500,000 mm⁴
Sx 13.20 in³ 216,000.00 mm³
rx 2.59 in 65.80 mm

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 2L8x4x7/16LLBB.

Lighter in Double angles

2L5x3-1/2x5/8LLBB

Weight
33.6 lb/ft (-2.3%)
Depth
5.00 in (-38%)
Ix
24.0 in⁴ (-65%)

Heavier in Double angles

2L7x4x1/2LLBB

Weight
35.8 lb/ft (+4.1%)
Depth
7.00 in (-13%)
Ix
53.2 in⁴ (-22%)

Closest Iₓ in Double angles

2L8x4x7/16x3/4LLBB

Weight
34.4 lb/ft (0.0%)
Depth
8.00 in (0.0%)
Ix
68.4 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology