Steel Beam Sizes / AISC / Double Angles / 2L8x4x1/2x3/8LLBB
2L8x4x1/2x3/8LLBB Dimensions, Weight and Section Properties
AISC Double angles · v16.0
2L8x4x1/2x3/8LLBB: 8 in depth, 39.2 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
2L8x4x1/2x3/8LLBB 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 | 39.20 lb/ft | 58.40 kg/m |
| Width | 4.00 in | 102.00 mm |
| Height | 8.00 in | 203.00 mm |
| t | 0.500 in | 12.700 mm |
| Area | 11.60 in² | 7,480.00 mm² |
| Ix | 77.20 in⁴ | 32,100,000 mm⁴ |
| Iy | 26.10 in⁴ | 10,900,000 mm⁴ |
| Sx | 15.00 in³ | 246,000.00 mm³ |
| rx | 2.58 in | 65.50 mm |
| ry | 1.50 in | 38.10 mm |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus 2L8x4x1/2x3/8LLBB.
Lighter in Double angles
2L4x4x3/4
- Weight
- 37.0 lb/ft (-5.6%)
- Depth
- 4.00 in (-50%)
- Ix
- 15.2 in⁴ (-80%)
Heavier in Double angles
2L5x3-1/2x3/4LLBB
- Weight
- 39.6 lb/ft (+1.0%)
- Depth
- 5.00 in (-38%)
- Ix
- 27.8 in⁴ (-64%)
Another Iₓ option in Double angles
2L8x4x1/2LLBB
- Weight
- 39.2 lb/ft (0.0%)
- Depth
- 8.00 in (0.0%)
- Ix
- 77.2 in⁴ (0.0%)
Source: AISC Shapes Database v16.0 · Methodology