HellermannTyton offers two styles of solid and vented equipment shelves for mounting telecommunications devices in a 19" rack or cabinet. The cantilevered shelf mounts to the front or rear of the rack’s mounting rails. Both the center weight and the cantilevered shelf are manufactured from 16 gauge steel and they come with 10-32 and 12-24 mounting hardware. The cantilevered shelf is rated for 50 pound capacity and the center weight is rated for 75 pound capacity.