The Steel Square Tubing, 4" × 4" × 1/4" is a heavy-wall structural tube used for strong, clean, weld-ready fabrication. With a square profile and thick 1/4" wall, it’s ideal for frames, posts, equipment builds, and structural reinforcement where stiffness and durability matter.
Country of Origin: USA
Key Features / Specifications
- Size: 4" × 4" square tube
- Wall thickness: 1/4" (0.250")
- Material: Typically mild/structural steel (commonly A500 Grade B unless otherwise specified)
- Strength & stiffness: Thick wall provides excellent resistance to bending and twisting
- Fabrication-friendly: Easy to cut, drill, weld, and cap/plate
- Finish: Usually mill finish (may have light surface scale from hot rolling)
Ideal For:
- Equipment frames, skids, and structural supports
- Posts, columns, gates, and heavy bracing
- Trailer fabrication and repairs
- Farm and shop projects needing strong, square structural members