Shelves are formed from 12 gauge steel with structural angle corners and shelf reinforcements on shelves longer than 36 ". Shelves are available with 1-1/2 " lips, or with flush edges. Raised offset handle includes cross brace hand guard for added safety. These welded units are shopped set up and ready for immediate use, with 2 swivel and 2 rigid casters. Shelf clearance 18 " with lipped shelves, 19-1/2 " with flush shelves.