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)
2L4x3x5/8SLBB 27.2 3 4 7.98 5.7 27 2.67
2L4x3x5/8x3/4SLBB 27.2 3 4 7.98 5.7 36.2 2.67
2L4x3x5/8x3/8SLBB 27.2 3 4 7.98 5.7 31.3 2.67
2L2-1/2x1-1/2x3/16LLBB 4.88 2.5 1.5 1.45 0.928 0.424 0.56
2L2-1/2x1-1/2x3/16x3/4LLBB 4.88 2.5 1.5 1.45 0.928 1.01 0.56
2L2-1/2x1-1/2x3/16x3/8LLBB 4.88 2.5 1.5 1.45 0.928 0.665 0.56
2L2-1/2x2x3/16LLBB 5.5 2.5 2 1.64 1.02 1.01 0.586
2L2-1/2x2x3/16x3/4LLBB 5.5 2.5 2 1.64 1.02 1.88 0.586
2L2-1/2x2x3/16x3/8LLBB 5.5 2.5 2 1.64 1.02 1.38 0.586
2L2-1/2x2-1/2x3/16 6.14 2.5 2.5 1.8 1.07 1.91 0.59
2L2-1/2x2-1/2x3/16x3/4 6.14 2.5 2.5 1.8 1.07 3.09 0.59
2L2-1/2x2-1/2x3/16x3/8 6.14 2.5 2.5 1.8 1.07 2.46 0.59
2L2-1/2x1-1/2x1/4LLBB 6.38 2.5 1.5 1.89 1.19 0.574 0.728
2L2-1/2x1-1/2x1/4x3/4LLBB 6.38 2.5 1.5 1.89 1.19 1.37 0.728
2L2-1/2x1-1/2x1/4x3/8LLBB 6.38 2.5 1.5 1.89 1.19 0.902 0.728
2L3x2-1/2x3/16SLBB 6.78 2.5 3 2 1.14 3.33 0.606
2L3x2-1/2x3/16x3/4SLBB 6.78 2.5 3 2 1.14 4.93 0.606
2L3x2-1/2x3/16x3/8SLBB 6.78 2.5 3 2 1.14 4.03 0.606
2L2-1/2x2x1/4LLBB 7.24 2.5 2 2.14 1.31 1.35 0.762
2L2-1/2x2x1/4x3/4LLBB 7.24 2.5 2 2.14 1.31 2.5 0.762
2L2-1/2x2x1/4x3/8LLBB 7.24 2.5 2 2.14 1.31 1.85 0.762
2L2-1/2x2-1/2x1/4 8.2 2.5 2.5 2.38 1.38 2.57 0.774
2L2-1/2x2-1/2x1/4x3/4 8.2 2.5 2.5 2.38 1.38 4.21 0.774
2L2-1/2x2-1/2x1/4x3/8 8.2 2.5 2.5 2.38 1.38 3.31 0.774
2L2-1/2x2x5/16LLBB 9 2.5 2 2.64 1.58 1.71 0.93
2L2-1/2x2x5/16x3/4LLBB 9 2.5 2 2.64 1.58 3.19 0.93
2L2-1/2x2x5/16x3/8LLBB 9 2.5 2 2.64 1.58 2.35 0.93
2L3x2-1/2x1/4SLBB 9 2.5 3 2.64 1.47 4.46 0.794
2L3x2-1/2x1/4x3/4SLBB 9 2.5 3 2.64 1.47 6.59 0.794
2L3x2-1/2x1/4x3/8SLBB 9 2.5 3 2.64 1.47 5.47 0.794
2L3-1/2x2-1/2x1/4SLBB 9.8 2.5 3.5 2.9 1.55 7.15 0.819
2L3-1/2x2-1/2x1/4x3/4SLBB 9.8 2.5 3.5 2.9 1.55 9.93 0.819
2L3-1/2x2-1/2x1/4x3/8SLBB 9.8 2.5 3.5 2.9 1.55 8.38 0.819
2L2-1/2x2-1/2x5/16 10 2.5 2.5 2.92 1.67 3.22 0.948
2L2-1/2x2-1/2x5/16x3/4 10 2.5 2.5 2.92 1.67 5.24 0.948
2L2-1/2x2-1/2x5/16x3/8 10 2.5 2.5 2.92 1.67 4.14 0.948
2L2-1/2x2x3/8LLBB 10.6 2.5 2 3.1 1.83 2.06 1.09
2L2-1/2x2x3/8x3/4LLBB 10.6 2.5 2 3.1 1.83 3.82 1.09
2L2-1/2x2x3/8x3/8LLBB 10.6 2.5 2 3.1 1.83 2.84 1.09
2L3x2-1/2x5/16SLBB 11.2 2.5 3 3.26 1.78 5.59 0.974
2L3x2-1/2x5/16x3/4SLBB 11.2 2.5 3 3.26 1.78 8.35 0.974
2L3x2-1/2x5/16x3/8SLBB 11.2 2.5 3 3.26 1.78 6.85 0.974
2L2-1/2x2-1/2x3/8 11.8 2.5 2.5 3.46 1.94 3.96 1.12
2L2-1/2x2-1/2x3/8x3/4 11.8 2.5 2.5 3.46 1.94 6.4 1.12
2L2-1/2x2-1/2x3/8x3/8 11.8 2.5 2.5 3.46 1.94 5.07 1.12
2L3-1/2x2-1/2x5/16SLBB 12.2 2.5 3.5 3.58 1.87 8.94 1
2L3-1/2x2-1/2x5/16x3/4SLBB 12.2 2.5 3.5 3.58 1.87 12.5 1
2L3-1/2x2-1/2x5/16x3/8SLBB 12.2 2.5 3.5 3.58 1.87 10.6 1
2L3x2-1/2x3/8SLBB 13.2 2.5 3 3.86 2.06 6.73 1.15
2L3x2-1/2x3/8x3/4SLBB 13.2 2.5 3 3.86 2.06 10 1.15
2L3x2-1/2x3/8x3/8SLBB 13.2 2.5 3 3.86 2.06 8.23 1.15
2L3-1/2x2-1/2x3/8SLBB 14.4 2.5 3.5 4.24 2.17 10.7 1.18
2L3-1/2x2-1/2x3/8x3/4SLBB 14.4 2.5 3.5 4.24 2.17 15 1.18
2L3-1/2x2-1/2x3/8x3/8SLBB 14.4 2.5 3.5 4.24 2.17 12.7 1.18
2L3x2-1/2x7/16SLBB 15.2 2.5 3 4.44 2.33 7.97 1.31
2L3x2-1/2x7/16x3/4SLBB 15.2 2.5 3 4.44 2.33 11.8 1.31
2L3x2-1/2x7/16x3/8SLBB 15.2 2.5 3 4.44 2.33 9.73 1.31
2L2-1/2x2-1/2x1/2 15.4 2.5 2.5 4.52 2.44 5.37 1.43
2L2-1/2x2-1/2x1/2x3/4 15.4 2.5 2.5 4.52 2.44 8.73 1.43
2L2-1/2x2-1/2x1/2x3/8 15.4 2.5 2.5 4.52 2.44 6.84 1.43
2L3x2-1/2x1/2SLBB 17 2.5 3 5 2.58 9.11 1.47
2L3x2-1/2x1/2x3/4SLBB 17 2.5 3 5 2.58 13.4 1.47
2L3x2-1/2x1/2x3/8SLBB 17 2.5 3 5 2.58 11.1 1.47
2L3-1/2x2-1/2x1/2SLBB 18.8 2.5 3.5 5.54 2.72 14.5 1.51
2L3-1/2x2-1/2x1/2x3/4SLBB 18.8 2.5 3.5 5.54 2.72 20.2 1.51
2L3-1/2x2-1/2x1/2x3/8SLBB 18.8 2.5 3.5 5.54 2.72 17.2 1.51
2L2x2x1/8 3.3 2 2 0.982 0.378 0.657 0.258
2L2x2x1/8x3/4 3.3 2 2 0.982 0.378 1.19 0.258
2L2x2x1/8x3/8 3.3 2 2 0.982 0.378 0.888 0.258
2L2x2x3/16 4.88 2 2 1.44 0.542 0.994 0.376
2L2x2x3/16x3/4 4.88 2 2 1.44 0.542 1.81 0.376
2L2x2x3/16x3/8 4.88 2 2 1.44 0.542 1.35 0.376
2L2-1/2x2x3/16SLBB 5.5 2 2.5 1.64 0.583 1.95 0.391
2L2-1/2x2x3/16x3/4SLBB 5.5 2 2.5 1.64 0.583 3.12 0.391
2L2-1/2x2x3/16x3/8SLBB 5.5 2 2.5 1.64 0.583 2.48 0.391
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Source: AISC Shapes Database v16.0 · Methodology