Rectangular Steel Tube

Hollow rectangular steel tubing in carbon steel, aluminum, or stainless — specifying both wall thickness (from 18 gauge up to 5/8") and outside dimensions (width and height from ½″ up to 12″) to match your project requirements. This makes it ideal for structural framing, fabrication, supports, enclosures or custom projects where strength combined with lightweight, hollow construction is needed. Whether you're building frames, racks, or equipment enclosures, you can order exactly the size and quantity you need. Conveniently based in Janesville, WI, enables custom sizing and local pickup/delivery — offering flexibility for contractors, fabricators, hobbyists and small shops alike.