Cantilever racks have arms that extend from their frame to create multiple storage levels. Also known as pipe storage racks and cantilever shelving, they hold long materials such as lumber, bars, tubing, and pipe in maintenance departments, tool rooms, machine shops, and storage areas. Cantilever rack kits come with all the necessary parts for assembling cantilever racks. Components such as uprights, braces, arms, and stop sockets can be purchased to repair, upgrade, or add onto existing cantilever racks.