Product Description
Our 3" Square Steel Tubing with an 11-gauge wall thickness is engineered for high-load applications where structural integrity is paramount. This cold-rolled mechanical tubing offers a massive increase in rigidity and torsion resistance over smaller profiles. The 11-gauge wall (approx. 1/8") provides a robust welding surface for deep-penetration joints, making it the industry standard for main trailer rails, agricultural implements, and commercial building supports.
This tubing features a smooth, mill-finish surface that is easy to prep, ensuring a professional look for high-visibility projects like architectural framing or heavy-duty industrial furniture.
✅ Key Features & Benefits
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Heavy-Duty Structural Support: The 3-inch profile combined with a .120" wall provides immense strength for long spans and heavy load-bearing frames.
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Superior Weldability: Clean carbon steel chemistry allows for excellent arc stability and strong welds using MIG, TIG, or Stick processes.
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Uniform Wall Thickness: Precision manufacturing ensures consistent wall thickness and flat sides for easy alignment of brackets and mounting plates.
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Ready for Finish: The smooth, cold-rolled surface requires minimal sanding or cleaning before the application of paint, powder coating, or galvanizing.
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High Torsion Resistance: Square geometry offers superior resistance to twisting compared to round pipe of similar weight.
