Steel Beam Sizes / AISC / Double Angles / 2L8x4x7/8x3/4SLBB
2L8x4x7/8x3/4SLBB Dimensions, Weight and Section Properties
AISC Double angles · v16.0
2L8x4x7/8x3/4SLBB: 4 in depth, 66.2 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
2L8x4x7/8x3/4SLBB 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 | 66.20 lb/ft | 98.60 kg/m |
| Width | 8.00 in | 203.00 mm |
| Height | 4.00 in | 102.00 mm |
| t | 0.875 in | 22.200 mm |
| Area | 19.60 in² | 12,600.00 mm² |
| Ix | 21.10 in⁴ | 8,780,000 mm⁴ |
| Iy | 347.00 in⁴ | 144,000,000 mm⁴ |
| Sx | 7.02 in³ | 115,000.00 mm³ |
| rx | 1.04 in | 26.40 mm |
| ry | 4.21 in | 107.00 mm |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus 2L8x4x7/8x3/4SLBB.
Lighter in Double angles
2L8x8x5/8
- Weight
- 65.4 lb/ft (-1.2%)
- Depth
- 8.00 in (+100%)
- Ix
- 119.0 in⁴ (+464%)
Heavier in Double angles
2L8x6x3/4LLBB
- Weight
- 67.6 lb/ft (+2.1%)
- Depth
- 8.00 in (+100%)
- Ix
- 127.0 in⁴ (+502%)
Another Iₓ option in Double angles
2L8x4x7/8SLBB
- Weight
- 66.2 lb/ft (0.0%)
- Depth
- 4.00 in (0.0%)
- Ix
- 21.1 in⁴ (0.0%)
Source: AISC Shapes Database v16.0 · Methodology