AISC Double Angles & Section Properties
AISC 2L shapes are back-to-back double-angle assemblies used for built-up members, braces and truss chords.
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Showing AISC · Double Angles · Imperial
AISC Shapes Database v16.0 · 2,299 sections
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Showing the most relevant 75 sections.
| Designation | Weight (lb/ft) | Depth, d (in) | Width (in) | Area (in²) | Ix (in⁴) | Iy (in⁴) | Sx (in³) |
|---|---|---|---|---|---|---|---|
| 2L3x2x5/16LLBB | 10 | 3 | 2 | 2.96 | 2.64 | 1.71 | 1.32 |
| 2L3x2x5/16x3/4LLBB | 10 | 3 | 2 | 2.96 | 2.64 | 3.26 | 1.32 |
| 2L3x2x5/16x3/8LLBB | 10 | 3 | 2 | 2.96 | 2.64 | 2.38 | 1.32 |
| 2L3-1/2x3x1/4SLBB | 10.8 | 3 | 3.5 | 3.16 | 2.61 | 7.11 | 1.17 |
| 2L3-1/2x3x1/4x3/4SLBB | 10.8 | 3 | 3.5 | 3.16 | 2.61 | 10 | 1.17 |
| 2L3-1/2x3x1/4x3/8SLBB | 10.8 | 3 | 3.5 | 3.16 | 2.61 | 8.4 | 1.17 |
| 2L3x2-1/2x5/16LLBB | 11.2 | 3 | 2.5 | 3.26 | 2.82 | 3.26 | 1.36 |
| 2L3x2-1/2x5/16x3/4LLBB | 11.2 | 3 | 2.5 | 3.26 | 2.82 | 5.42 | 1.36 |
| 2L3x2-1/2x5/16x3/8LLBB | 11.2 | 3 | 2.5 | 3.26 | 2.82 | 4.24 | 1.36 |
| 2L4x3x1/4SLBB | 11.6 | 3 | 4 | 3.38 | 2.66 | 10.5 | 1.17 |
| 2L4x3x1/4x3/4SLBB | 11.6 | 3 | 4 | 3.38 | 2.66 | 14.1 | 1.17 |
| 2L4x3x1/4x3/8SLBB | 11.6 | 3 | 4 | 3.38 | 2.66 | 12.2 | 1.17 |
| 2L3x2x3/8LLBB | 11.8 | 3 | 2 | 3.5 | 3.08 | 2.08 | 1.56 |
| 2L3x2x3/8x3/4LLBB | 11.8 | 3 | 2 | 3.5 | 3.08 | 4.01 | 1.56 |
| 2L3x2x3/8x3/8LLBB | 11.8 | 3 | 2 | 3.5 | 3.08 | 2.9 | 1.56 |
| 2L3x3x5/16 | 12.2 | 3 | 3 | 3.56 | 3 | 5.65 | 1.4 |
| 2L3x3x5/16x3/4 | 12.2 | 3 | 3 | 3.56 | 3 | 8.44 | 1.4 |
| 2L3x3x5/16x3/8 | 12.2 | 3 | 3 | 3.56 | 3 | 6.88 | 1.4 |
| 2L3-1/2x3x5/16SLBB | 13.2 | 3 | 3.5 | 3.9 | 3.16 | 8.89 | 1.44 |
| 2L3-1/2x3x5/16x3/4SLBB | 13.2 | 3 | 3.5 | 3.9 | 3.16 | 12.5 | 1.44 |
| 2L3-1/2x3x5/16x3/8SLBB | 13.2 | 3 | 3.5 | 3.9 | 3.16 | 10.6 | 1.44 |
| 2L3x2-1/2x3/8LLBB | 13.2 | 3 | 2.5 | 3.86 | 3.3 | 3.94 | 1.61 |
| 2L3x2-1/2x3/8x3/4LLBB | 13.2 | 3 | 2.5 | 3.86 | 3.3 | 6.52 | 1.61 |
| 2L3x2-1/2x3/8x3/8LLBB | 13.2 | 3 | 2.5 | 3.86 | 3.3 | 5.1 | 1.61 |
| 2L5x3x1/4SLBB | 13.2 | 3 | 5 | 3.88 | 2.82 | 20.5 | 1.2 |
| 2L5x3x1/4x3/4SLBB | 13.2 | 3 | 5 | 3.88 | 2.82 | 25.8 | 1.2 |
| 2L5x3x1/4x3/8SLBB | 13.2 | 3 | 5 | 3.88 | 2.82 | 23.1 | 1.2 |
| 2L3x3x3/8 | 14.4 | 3 | 3 | 4.22 | 3.5 | 6.81 | 1.65 |
| 2L3x3x3/8x3/4 | 14.4 | 3 | 3 | 4.22 | 3.5 | 10.1 | 1.65 |
| 2L3x3x3/8x3/8 | 14.4 | 3 | 3 | 4.22 | 3.5 | 8.39 | 1.65 |
| 2L4x3x5/16SLBB | 14.4 | 3 | 4 | 4.18 | 3.24 | 13.2 | 1.44 |
| 2L4x3x5/16x3/4SLBB | 14.4 | 3 | 4 | 4.18 | 3.24 | 17.7 | 1.44 |
| 2L4x3x5/16x3/8SLBB | 14.4 | 3 | 4 | 4.18 | 3.24 | 15.2 | 1.44 |
| 2L3x2-1/2x7/16LLBB | 15.2 | 3 | 2.5 | 4.44 | 3.74 | 4.62 | 1.84 |
| 2L3x2-1/2x7/16x3/4LLBB | 15.2 | 3 | 2.5 | 4.44 | 3.74 | 7.74 | 1.84 |
| 2L3x2-1/2x7/16x3/8LLBB | 15.2 | 3 | 2.5 | 4.44 | 3.74 | 5.97 | 1.84 |
| 2L3x2x1/2LLBB | 15.4 | 3 | 2 | 4.52 | 3.84 | 2.86 | 2 |
| 2L3x2x1/2x3/4LLBB | 15.4 | 3 | 2 | 4.52 | 3.84 | 5.47 | 2 |
| 2L3x2x1/2x3/8LLBB | 15.4 | 3 | 2 | 4.52 | 3.84 | 3.99 | 2 |
| 2L3-1/2x3x3/8SLBB | 15.8 | 3 | 3.5 | 4.64 | 3.69 | 10.7 | 1.69 |
| 2L3-1/2x3x3/8x3/4SLBB | 15.8 | 3 | 3.5 | 4.64 | 3.69 | 15.2 | 1.69 |
| 2L3-1/2x3x3/8x3/8SLBB | 15.8 | 3 | 3.5 | 4.64 | 3.69 | 12.8 | 1.69 |
| 2L5x3x5/16SLBB | 16.4 | 3 | 5 | 4.82 | 3.44 | 25.9 | 1.48 |
| 2L5x3x5/16x3/4SLBB | 16.4 | 3 | 5 | 4.82 | 3.44 | 32.6 | 1.48 |
| 2L5x3x5/16x3/8SLBB | 16.4 | 3 | 5 | 4.82 | 3.44 | 29.2 | 1.48 |
| 2L3x3x7/16 | 16.6 | 3 | 3 | 4.86 | 3.96 | 7.96 | 1.89 |
| 2L3x3x7/16x3/4 | 16.6 | 3 | 3 | 4.86 | 3.96 | 12 | 1.89 |
| 2L3x3x7/16x3/8 | 16.6 | 3 | 3 | 4.86 | 3.96 | 9.8 | 1.89 |
| 2L3x2-1/2x1/2LLBB | 17 | 3 | 2.5 | 5 | 4.14 | 5.41 | 2.06 |
| 2L3x2-1/2x1/2x3/4LLBB | 17 | 3 | 2.5 | 5 | 4.14 | 8.84 | 2.06 |
| 2L3x2-1/2x1/2x3/8LLBB | 17 | 3 | 2.5 | 5 | 4.14 | 6.96 | 2.06 |
| 2L4x3x3/8SLBB | 17 | 3 | 4 | 4.98 | 3.79 | 16 | 1.7 |
| 2L4x3x3/8x3/4SLBB | 17 | 3 | 4 | 4.98 | 3.79 | 21.3 | 1.7 |
| 2L4x3x3/8x3/8SLBB | 17 | 3 | 4 | 4.98 | 3.79 | 18.6 | 1.7 |
| 2L3-1/2x3x7/16SLBB | 18.2 | 3 | 3.5 | 5.34 | 4.18 | 12.7 | 1.94 |
| 2L3-1/2x3x7/16x3/4SLBB | 18.2 | 3 | 3.5 | 5.34 | 4.18 | 17.7 | 1.94 |
| 2L3-1/2x3x7/16x3/8SLBB | 18.2 | 3 | 3.5 | 5.34 | 4.18 | 14.9 | 1.94 |
| 2L3x3x1/2 | 18.8 | 3 | 3 | 5.52 | 4.4 | 9.19 | 2.12 |
| 2L3x3x1/2x3/4 | 18.8 | 3 | 3 | 5.52 | 4.4 | 13.8 | 2.12 |
| 2L3x3x1/2x3/8 | 18.8 | 3 | 3 | 5.52 | 4.4 | 11.3 | 2.12 |
| 2L5x3x3/8SLBB | 19.6 | 3 | 5 | 5.72 | 4.02 | 31.1 | 1.75 |
| 2L5x3x3/8x3/4SLBB | 19.6 | 3 | 5 | 5.72 | 4.02 | 39.3 | 1.75 |
| 2L5x3x3/8x3/8SLBB | 19.6 | 3 | 5 | 5.72 | 4.02 | 34.9 | 1.75 |
| 2L3-1/2x3x1/2SLBB | 20.4 | 3 | 3.5 | 6.04 | 4.65 | 14.5 | 2.18 |
| 2L3-1/2x3x1/2x3/4SLBB | 20.4 | 3 | 3.5 | 6.04 | 4.65 | 20.4 | 2.18 |
| 2L3-1/2x3x1/2x3/8SLBB | 20.4 | 3 | 3.5 | 6.04 | 4.65 | 17.3 | 2.18 |
| 2L4x3x1/2SLBB | 22.2 | 3 | 4 | 6.5 | 4.79 | 21.3 | 2.2 |
| 2L4x3x1/2x3/4SLBB | 22.2 | 3 | 4 | 6.5 | 4.79 | 28.7 | 2.2 |
| 2L4x3x1/2x3/8SLBB | 22.2 | 3 | 4 | 6.5 | 4.79 | 24.7 | 2.2 |
| 2L5x3x7/16SLBB | 22.6 | 3 | 5 | 6.62 | 4.58 | 36.2 | 2.01 |
| 2L5x3x7/16x3/4SLBB | 22.6 | 3 | 5 | 6.62 | 4.58 | 45.8 | 2.01 |
| 2L5x3x7/16x3/8SLBB | 22.6 | 3 | 5 | 6.62 | 4.58 | 40.7 | 2.01 |
| 2L5x3x1/2SLBB | 25.6 | 3 | 5 | 7.5 | 5.1 | 41.4 | 2.26 |
| 2L5x3x1/2x3/4SLBB | 25.6 | 3 | 5 | 7.5 | 5.1 | 52.3 | 2.26 |
| 2L5x3x1/2x3/8SLBB | 25.6 | 3 | 5 | 7.5 | 5.1 | 46.9 | 2.26 |
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Source: AISC Shapes Database v16.0 · Methodology