2L4×4×3/8×3/8 double 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.
2L4×4×3/8×3/8 has equal 4 in. legs, 3/8 in. thick, spaced 3/8 in. back to back.
At 19.6 lb per foot it is one of the 21 2L4×4 sizes, which run from 13.2 to 37 lb/ft.
For strong-axis bending its section modulus is Sx = 3 in³ and its moment of inertia Ix = 8.64 in⁴, with a plastic modulus Zx = 5.38 in³.
Detailing dimensions
| Long leg | 4" |
|---|---|
| Short leg | 4" |
| Thickness (t) | 3/8" |
Section properties
| Weight | 19.6 lb/ft |
|---|---|
| Area (A) | 5.72 in² |
| Ix | 8.64 in⁴ |
| Sx | 3 in³ |
| Zx | 5.38 in³ |
| rx | 1.23 in |
| Iy | 18.5 in⁴ |
| Sy | 4.42 in³ |
| Zy | 7.54 in³ |
| ry | 1.8 in |
Other 2L4×4 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All 2L4×4 sizes and dimensions →
Similar weight double angles
Comparable 19.6 lb/ft sections in other double 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 2L4×4×3/8×3/8 cut, formed, or fabricated? Huntington Steel & Supply Co.
Browse more: Double angles · Steel Beam Size Chart