Steel Beam Sizes / AISC / Double Angles / 2L8x4x1x3/8SLBB
2L8x4x1x3/8SLBB Steel Beam Dimensions and Properties
AISC Double angles · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
2L8x4x1x3/8SLBB 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 | 74.80 lb/ft | 111.00 kg/m |
| Width | 8.00 in | 203.00 mm |
| Height | 4.00 in | 102.00 mm |
| t | 1.000 in | 25.400 mm |
| Area | 22.20 in² | 14,300.00 mm² |
| Ix | 23.30 in⁴ | 9,700,000 mm⁴ |
| Sx | 7.87 in³ | 129,000.00 mm³ |
| rx | 1.03 in | 26.20 mm |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 2L8x4x1x3/8SLBB.
Lighter in Double angles
2L8x6x3/4LLBB
- Weight
- 67.6 lb/ft (-9.6%)
- Depth
- 8.00 in (+100%)
- Ix
- 127.0 in⁴ (+445%)
Heavier in Double angles
2L8x8x3/4
- Weight
- 77.8 lb/ft (+4.0%)
- Depth
- 8.00 in (+100%)
- Ix
- 140.0 in⁴ (+501%)
Closest Iₓ in Double angles
2L8x4x1SLBB
- Weight
- 74.8 lb/ft (0.0%)
- Depth
- 4.00 in (0.0%)
- Ix
- 23.3 in⁴ (0.0%)
Source: AISC Shapes Database v16.0 · Methodology