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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AISC Shapes Database v16.0 · 2,299 sections

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AISC 2L dimensions and section properties in imperial units
Designation Weight (lb/ft) Depth, d (in) Width (in) Area (in²) Ix (in⁴) Iy (in⁴) Sx (in³)
2L5x5x1/2 32.4 5 5 9.58 22.6 41.8 6.3
2L5x5x1/2x3/4 32.4 5 5 9.58 22.6 53.4 6.3
2L5x5x1/2x3/8 32.4 5 5 9.58 22.6 47.2 6.3
2L5x3-1/2x5/8LLBB 33.6 5 3.5 9.86 24 18.5 7.26
2L5x3-1/2x5/8x3/4LLBB 33.6 5 3.5 9.86 24 26.8 7.26
2L5x3-1/2x5/8x3/8LLBB 33.6 5 3.5 9.86 24 22.2 7.26
2L5x3-1/2x3/4LLBB 39.6 5 3.5 11.7 27.8 22.6 8.52
2L5x3-1/2x3/4x3/4LLBB 39.6 5 3.5 11.7 27.8 33 8.52
2L5x3-1/2x3/4x3/8LLBB 39.6 5 3.5 11.7 27.8 27.4 8.52
2L5x5x5/8 40 5 5 11.8 27.2 52.5 7.7
2L5x5x5/8x3/4 40 5 5 11.8 27.2 67.4 7.7
2L5x5x5/8x3/8 40 5 5 11.8 27.2 59.7 7.7
2L5x5x3/4 47.2 5 5 14 31.4 63.5 9.04
2L5x5x3/4x3/4 47.2 5 5 14 31.4 81.3 9.04
2L5x5x3/4x3/8 47.2 5 5 14 31.4 72.1 9.04
2L5x5x7/8 54.4 5 5 16 35.6 74.6 10.3
2L5x5x7/8x3/4 54.4 5 5 16 35.6 95.3 10.3
2L5x5x7/8x3/8 54.4 5 5 16 35.6 84.6 10.3
2L4x3x1/4LLBB 11.6 4 3 3.38 5.5 4.47 1.98
2L4x3x1/4x3/4LLBB 11.6 4 3 3.38 5.5 6.72 1.98
2L4x3x1/4x3/8LLBB 11.6 4 3 3.38 5.5 5.45 1.98
2L4x3-1/2x1/4LLBB 12.4 4 3.5 3.64 5.78 7.03 2.02
2L4x3-1/2x1/4x3/4LLBB 12.4 4 3.5 3.64 5.78 10 2.02
2L4x3-1/2x1/4x3/8LLBB 12.4 4 3.5 3.64 5.78 8.41 2.02
2L4x4x1/4 13.2 4 4 3.86 6 10.5 2.06
2L4x4x1/4x3/4 13.2 4 4 3.86 6 14.1 2.06
2L4x4x1/4x3/8 13.2 4 4 3.86 6 12.2 2.06
2L4x3x5/16LLBB 14.4 4 3 4.18 6.72 5.62 2.44
2L4x3x5/16x3/4LLBB 14.4 4 3 4.18 6.72 8.55 2.44
2L4x3x5/16x3/8LLBB 14.4 4 3 4.18 6.72 6.96 2.44
2L4x3-1/2x5/16LLBB 15.4 4 3.5 4.5 7.06 8.82 2.5
2L4x3-1/2x5/16x3/4LLBB 15.4 4 3.5 4.5 7.06 12.7 2.5
2L4x3-1/2x5/16x3/8LLBB 15.4 4 3.5 4.5 7.06 10.5 2.5
2L4x4x5/16 16.4 4 4 4.8 7.34 13.2 2.54
2L4x4x5/16x3/4 16.4 4 4 4.8 7.34 17.9 2.54
2L4x4x5/16x3/8 16.4 4 4 4.8 7.34 15.4 2.54
2L4x3x3/8LLBB 17 4 3 4.98 7.88 6.82 2.88
2L4x3x3/8x3/4LLBB 17 4 3 4.98 7.88 10.3 2.88
2L4x3x3/8x3/8LLBB 17 4 3 4.98 7.88 8.42 2.88
2L4x3-1/2x3/8LLBB 18.2 4 3.5 5.36 8.3 10.8 2.96
2L4x3-1/2x3/8x3/4LLBB 18.2 4 3.5 5.36 8.3 15.3 2.96
2L4x3-1/2x3/8x3/8LLBB 18.2 4 3.5 5.36 8.3 12.9 2.96
2L4x4x3/8 19.6 4 4 5.72 8.64 16 3
2L4x4x3/8x3/4 19.6 4 4 5.72 8.64 21.5 3
2L4x4x3/8x3/8 19.6 4 4 5.72 8.64 18.5 3
2L6x4x5/16SLBB 20.6 4 6 6.06 8.26 44.8 2.67
2L6x4x5/16x3/4SLBB 20.6 4 6 6.06 8.26 54.2 2.67
2L6x4x5/16x3/8SLBB 20.6 4 6 6.06 8.26 49.2 2.67
2L4x3x1/2LLBB 22.2 4 3 6.5 10 9.2 3.74
2L4x3x1/2x3/4LLBB 22.2 4 3 6.5 10 14 3.74
2L4x3x1/2x3/8LLBB 22.2 4 3 6.5 10 11.3 3.74
2L4x4x7/16 22.6 4 4 6.6 9.86 18.6 3.46
2L4x4x7/16x3/4 22.6 4 4 6.6 9.86 25.4 3.46
2L4x4x7/16x3/8 22.6 4 4 6.6 9.86 21.6 3.46
2L4x3-1/2x1/2LLBB 23.8 4 3.5 7 10.6 14.5 3.84
2L4x3-1/2x1/2x3/4LLBB 23.8 4 3.5 7 10.6 20.7 3.84
2L4x3-1/2x1/2x3/8LLBB 23.8 4 3.5 7 10.6 17.3 3.84
2L6x4x3/8SLBB 24.6 4 6 7.22 9.72 53.8 3.17
2L6x4x3/8x3/4SLBB 24.6 4 6 7.22 9.72 65 3.17
2L6x4x3/8x3/8SLBB 24.6 4 6 7.22 9.72 59.1 3.17
2L4x4x1/2 25.6 4 4 7.5 11 21.4 3.92
2L4x4x1/2x3/4 25.6 4 4 7.5 11 29.1 3.92
2L4x4x1/2x3/8 25.6 4 4 7.5 11 25.1 3.92
2L4x3x5/8LLBB 27.2 4 3 7.98 12 11.7 4.56
2L4x3x5/8x3/4LLBB 27.2 4 3 7.98 12 18 4.56
2L4x3x5/8x3/8LLBB 27.2 4 3 7.98 12 14.5 4.56
2L7x4x3/8SLBB 27.2 4 7 8 10.1 85 3.22
2L7x4x3/8x3/4SLBB 27.2 4 7 8 10.1 100 3.22
2L7x4x3/8x3/8SLBB 27.2 4 7 8 10.1 92.5 3.22
2L6x4x7/16SLBB 28.6 4 6 8.36 11.1 62.8 3.65
2L6x4x7/16x3/4SLBB 28.6 4 6 8.36 11.1 76.2 3.65
2L6x4x7/16x3/8SLBB 28.6 4 6 8.36 11.1 69.3 3.65
2L4x4x5/8 31.4 4 4 9.22 13.2 27 4.76
2L4x4x5/8x3/4 31.4 4 4 9.22 13.2 36.9 4.76
2L4x4x5/8x3/8 31.4 4 4 9.22 13.2 31.6 4.76
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Source: AISC Shapes Database v16.0 · Methodology