Solid fully welded steel construction for structural integrity. Front steel rail channels are 10-32 threaded for equipment mounting. Rear channel holes for convenient cable lacing top to bottom. Heavy duty 14-gauge gusseted steel base. Hole pattern on sides of rail allows for cable lacing and easy ganging to existing racks. Hole pattern on top allows for installation of 12 and 18 inch wide cable ladders. Grounding stud installed in base. Durable black powder coat finish. Ships assembled and ready to install.