Round Steel Tube Supplier

Hollow cylindrical tubing in carbon steel, available in both DOM and ERW variants, with outer diameters from 1/8″ up to 12″ and standard 20-ft lengths — and cut-to-size upon request. Whether you're building frames, structural supports, railing, machinery components, or fabricating custom parts, these round tubes provide strong, reliable tube stock suited for wide-ranging industrial, or fabrications. Flexible ordering and local availability from Janesville, WI facility, you get both convenience and versatility — from small-scale jobs to larger structural builds.