1 1/2″ welded tube frame is shipped knocked-down and bolted together with cross members. Electropolished or brushed 300 series stainless steel. Available with or without domed cap that secures hangers to hanger rail, preventing hanger removal. Nylon dissipative feet standard. Hanger slots are standard on 3″ centers, with other spacing available. Hangers are not included. Available as single, double or cantilevered models.