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) |
|---|---|---|---|---|---|---|---|
| 2L3-1/2x3-1/2x5/16 | 14.4 | 3.5 | 3.5 | 4.2 | 4.88 | 8.95 | 1.94 |
| 2L3-1/2x3-1/2x5/16x3/4 | 14.4 | 3.5 | 3.5 | 4.2 | 4.88 | 12.6 | 1.94 |
| 2L3-1/2x3-1/2x5/16x3/8 | 14.4 | 3.5 | 3.5 | 4.2 | 4.88 | 10.6 | 1.94 |
| 2L4x3-1/2x5/16SLBB | 15.4 | 3.5 | 4 | 4.5 | 5.05 | 13.3 | 1.96 |
| 2L4x3-1/2x5/16x3/4SLBB | 15.4 | 3.5 | 4 | 4.5 | 5.05 | 17.8 | 1.96 |
| 2L4x3-1/2x5/16x3/8SLBB | 15.4 | 3.5 | 4 | 4.5 | 5.05 | 15.4 | 1.96 |
| 2L3-1/2x3x3/8LLBB | 15.8 | 3.5 | 3 | 4.64 | 5.46 | 6.79 | 2.24 |
| 2L3-1/2x3x3/8x3/4LLBB | 15.8 | 3.5 | 3 | 4.64 | 5.46 | 10.3 | 2.24 |
| 2L3-1/2x3x3/8x3/8LLBB | 15.8 | 3.5 | 3 | 4.64 | 5.46 | 8.46 | 2.24 |
| 2L3-1/2x3-1/2x3/8 | 17 | 3.5 | 3.5 | 5 | 5.72 | 10.8 | 2.3 |
| 2L3-1/2x3-1/2x3/8x3/4 | 17 | 3.5 | 3.5 | 5 | 5.72 | 15.1 | 2.3 |
| 2L3-1/2x3-1/2x3/8x3/8 | 17 | 3.5 | 3.5 | 5 | 5.72 | 12.8 | 2.3 |
| 2L5x3-1/2x5/16SLBB | 17.4 | 3.5 | 5 | 5.12 | 5.38 | 25.9 | 2.01 |
| 2L5x3-1/2x5/16x3/4SLBB | 17.4 | 3.5 | 5 | 5.12 | 5.38 | 32.5 | 2.01 |
| 2L5x3-1/2x5/16x3/8SLBB | 17.4 | 3.5 | 5 | 5.12 | 5.38 | 29 | 2.01 |
| 2L3-1/2x3x7/16LLBB | 18.2 | 3.5 | 3 | 5.34 | 6.2 | 7.95 | 2.58 |
| 2L3-1/2x3x7/16x3/4LLBB | 18.2 | 3.5 | 3 | 5.34 | 6.2 | 12.2 | 2.58 |
| 2L3-1/2x3x7/16x3/8LLBB | 18.2 | 3.5 | 3 | 5.34 | 6.2 | 9.88 | 2.58 |
| 2L4x3-1/2x3/8SLBB | 18.2 | 3.5 | 4 | 5.36 | 5.92 | 16 | 2.32 |
| 2L4x3-1/2x3/8x3/4SLBB | 18.2 | 3.5 | 4 | 5.36 | 5.92 | 21.4 | 2.32 |
| 2L4x3-1/2x3/8x3/8SLBB | 18.2 | 3.5 | 4 | 5.36 | 5.92 | 18.5 | 2.32 |
| 2L3-1/2x2-1/2x1/2LLBB | 18.8 | 3.5 | 2.5 | 5.54 | 6.48 | 5.45 | 2.82 |
| 2L3-1/2x2-1/2x1/2x3/4LLBB | 18.8 | 3.5 | 2.5 | 5.54 | 6.48 | 9.08 | 2.82 |
| 2L3-1/2x2-1/2x1/2x3/8LLBB | 18.8 | 3.5 | 2.5 | 5.54 | 6.48 | 7.07 | 2.82 |
| 2L3-1/2x3-1/2x7/16 | 19.6 | 3.5 | 3.5 | 5.78 | 6.5 | 12.7 | 2.64 |
| 2L3-1/2x3-1/2x7/16x3/4 | 19.6 | 3.5 | 3.5 | 5.78 | 6.5 | 17.9 | 2.64 |
| 2L3-1/2x3-1/2x7/16x3/8 | 19.6 | 3.5 | 3.5 | 5.78 | 6.5 | 15 | 2.64 |
| 2L6x3-1/2x5/16SLBB | 19.6 | 3.5 | 6 | 5.78 | 5.68 | 44.7 | 2.07 |
| 2L6x3-1/2x5/16x3/4SLBB | 19.6 | 3.5 | 6 | 5.78 | 5.68 | 54.1 | 2.07 |
| 2L6x3-1/2x5/16x3/8SLBB | 19.6 | 3.5 | 6 | 5.78 | 5.68 | 49.3 | 2.07 |
| 2L3-1/2x3x1/2LLBB | 20.4 | 3.5 | 3 | 6.04 | 6.9 | 9.14 | 2.9 |
| 2L3-1/2x3x1/2x3/4LLBB | 20.4 | 3.5 | 3 | 6.04 | 6.9 | 14 | 2.9 |
| 2L3-1/2x3x1/2x3/8LLBB | 20.4 | 3.5 | 3 | 6.04 | 6.9 | 11.3 | 2.9 |
| 2L5x3-1/2x3/8SLBB | 20.8 | 3.5 | 5 | 6.1 | 6.31 | 31.2 | 2.38 |
| 2L5x3-1/2x3/8x3/4SLBB | 20.8 | 3.5 | 5 | 6.1 | 6.31 | 39.4 | 2.38 |
| 2L5x3-1/2x3/8x3/8SLBB | 20.8 | 3.5 | 5 | 6.1 | 6.31 | 34.8 | 2.38 |
| 2L3-1/2x3-1/2x1/2 | 22.2 | 3.5 | 3.5 | 6.5 | 7.26 | 14.4 | 2.96 |
| 2L3-1/2x3-1/2x1/2x3/4 | 22.2 | 3.5 | 3.5 | 6.5 | 7.26 | 20.4 | 2.96 |
| 2L3-1/2x3-1/2x1/2x3/8 | 22.2 | 3.5 | 3.5 | 6.5 | 7.26 | 17.3 | 2.96 |
| 2L6x3-1/2x3/8SLBB | 23.4 | 3.5 | 6 | 6.88 | 6.65 | 53.9 | 2.45 |
| 2L6x3-1/2x3/8x3/4SLBB | 23.4 | 3.5 | 6 | 6.88 | 6.65 | 65.3 | 2.45 |
| 2L6x3-1/2x3/8x3/8SLBB | 23.4 | 3.5 | 6 | 6.88 | 6.65 | 59.5 | 2.45 |
| 2L4x3-1/2x1/2SLBB | 23.8 | 3.5 | 4 | 7 | 7.53 | 21.4 | 3 |
| 2L4x3-1/2x1/2x3/4SLBB | 23.8 | 3.5 | 4 | 7 | 7.53 | 28.8 | 3 |
| 2L4x3-1/2x1/2x3/8SLBB | 23.8 | 3.5 | 4 | 7 | 7.53 | 25 | 3 |
| 2L5x3-1/2x1/2SLBB | 27.2 | 3.5 | 5 | 8 | 8.04 | 41.6 | 3.09 |
| 2L5x3-1/2x1/2x3/4SLBB | 27.2 | 3.5 | 5 | 8 | 8.04 | 52.8 | 3.09 |
| 2L5x3-1/2x1/2x3/8SLBB | 27.2 | 3.5 | 5 | 8 | 8.04 | 46.9 | 3.09 |
| 2L6x3-1/2x1/2SLBB | 30.6 | 3.5 | 6 | 9 | 8.47 | 71.6 | 3.17 |
| 2L6x3-1/2x1/2x3/4SLBB | 30.6 | 3.5 | 6 | 9 | 8.47 | 87 | 3.17 |
| 2L6x3-1/2x1/2x3/8SLBB | 30.6 | 3.5 | 6 | 9 | 8.47 | 78.9 | 3.17 |
| 2L5x3-1/2x5/8SLBB | 33.6 | 3.5 | 5 | 9.86 | 9.6 | 52.2 | 3.76 |
| 2L5x3-1/2x5/8x3/4SLBB | 33.6 | 3.5 | 5 | 9.86 | 9.6 | 66.1 | 3.76 |
| 2L5x3-1/2x5/8x3/8SLBB | 33.6 | 3.5 | 5 | 9.86 | 9.6 | 59.2 | 3.76 |
| 2L5x3-1/2x3/4SLBB | 39.6 | 3.5 | 5 | 11.7 | 11 | 63.5 | 4.4 |
| 2L5x3-1/2x3/4x3/4SLBB | 39.6 | 3.5 | 5 | 11.7 | 11 | 80.3 | 4.4 |
| 2L5x3-1/2x3/4x3/8SLBB | 39.6 | 3.5 | 5 | 11.7 | 11 | 71.4 | 4.4 |
| 2L3x2x3/16LLBB | 6.14 | 3 | 2 | 1.83 | 1.69 | 0.999 | 0.828 |
| 2L3x2x3/16x3/4LLBB | 6.14 | 3 | 2 | 1.83 | 1.69 | 1.9 | 0.828 |
| 2L3x2x3/16x3/8LLBB | 6.14 | 3 | 2 | 1.83 | 1.69 | 1.38 | 0.828 |
| 2L3x2-1/2x3/16LLBB | 6.78 | 3 | 2.5 | 2 | 1.8 | 1.92 | 0.846 |
| 2L3x2-1/2x3/16x3/4LLBB | 6.78 | 3 | 2.5 | 2 | 1.8 | 3.13 | 0.846 |
| 2L3x2-1/2x3/16x3/8LLBB | 6.78 | 3 | 2.5 | 2 | 1.8 | 2.46 | 0.846 |
| 2L3x3x3/16 | 7.42 | 3 | 3 | 2.18 | 1.9 | 3.35 | 0.866 |
| 2L3x3x3/16x3/4 | 7.42 | 3 | 3 | 2.18 | 1.9 | 4.97 | 0.866 |
| 2L3x3x3/16x3/8 | 7.42 | 3 | 3 | 2.18 | 1.9 | 4.09 | 0.866 |
| 2L3x2x1/4LLBB | 8.2 | 3 | 2 | 2.4 | 2.18 | 1.35 | 1.08 |
| 2L3x2x1/4x3/4LLBB | 8.2 | 3 | 2 | 2.4 | 2.18 | 2.55 | 1.08 |
| 2L3x2x1/4x3/8LLBB | 8.2 | 3 | 2 | 2.4 | 2.18 | 1.87 | 1.08 |
| 2L3x2-1/2x1/4LLBB | 9 | 3 | 2.5 | 2.64 | 2.32 | 2.59 | 1.11 |
| 2L3x2-1/2x1/4x3/4LLBB | 9 | 3 | 2.5 | 2.64 | 2.32 | 4.26 | 1.11 |
| 2L3x2-1/2x1/4x3/8LLBB | 9 | 3 | 2.5 | 2.64 | 2.32 | 3.31 | 1.11 |
| 2L3x3x1/4 | 9.8 | 3 | 3 | 2.88 | 2.46 | 4.5 | 1.14 |
| 2L3x3x1/4x3/4 | 9.8 | 3 | 3 | 2.88 | 2.46 | 6.65 | 1.14 |
| 2L3x3x1/4x3/8 | 9.8 | 3 | 3 | 2.88 | 2.46 | 5.48 | 1.14 |
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Source: AISC Shapes Database v16.0 · Methodology