Our tables meet virtually every strength requirement for heavy manufacturing, assembly and maintenance type work, The top is made from 7 gauge steel and the legs are heavy duty angle. There is a welded 12 gauge bottom shelf to store items on as well. Tables greater that 6 feet in width require 6 legs.//These tables include the.5 inch plate top for the extra heavy duty. These table have a capacity of up to 12,000 lbs. These tables have casters and a push handle so you can move these tables to the work area and be ready to work. The polyurethane casters are 8 inches x 3 inches and have brakes on the swivels.//All our tables can be customized by adding optional accessories or by adding a different table top. Some of our standard table tops include maple top, UHMW top, ABS top, Stainless Steel top or.5 inch plate top.