Heavy Duty Cantilever Accessories Coil Beams Specialist beams for the storage of metal coils or reels. Steel Grating Steel Grating can be placed on the arms of cantilever racking to prevent small items falling between the arms. Cantilever Mobile Bases Cantilever racking can be mounted on mobile bases saving space while still allowing access to individual items. Cantilever Roof A light weight roof can be added to protect the racking and goods from the elements. Removable Stop End - Heavy Duty Preventing items from rolling off the end of the arm the stop end can be removed for improved access to goods.