L12×12×1-3/8 angle
Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.
L12×12×1-3/8 has equal 12 in. legs, 1 3/8 in. thick.
At 105 lb per foot it is the heaviest of the 4 L12×12 sizes, which run from 77.8 to 105 lb/ft.
For strong-axis bending its section modulus is Sx = 48.6 in³ and its moment of inertia Ix = 413 in⁴, with a plastic modulus Zx = 88.1 in³.
Detailing dimensions
| Long leg | 12" |
|---|---|
| Short leg | 12" |
| Thickness (t) | 1 3/8" |
| k (detailing) | 2 1/16" |
Section properties
| Weight | 105 lb/ft |
|---|---|
| Area (A) | 31.1 in² |
| Ix | 413 in⁴ |
| Sx | 48.6 in³ |
| Zx | 88.1 in³ |
| rx | 3.64 in |
| Iy | 413 in⁴ |
| Sy | 48.6 in³ |
| Zy | 88.1 in³ |
| ry | 3.64 in |
| J | 19.9 in⁴ |
Other L12×12 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All L12×12 sizes and dimensions →
Similar weight angles
Comparable 105 lb/ft sections in other angle sizes.
Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need L12×12×1-3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.
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