The Pro Series PRO-SKS1420C Shock Rack has an 18.38" rackable depth between the front and rear rack rails. The rack body depth is 19.75". With the front and back covers on, it measures 27" deep outside. The PRO-SKS1420C has 14 rack spaces (24.5"). There is a 1" layer of shock-absorbing foam surrounding the top and sides of the inner rack. The bottom is supported by four heavy-duty springs for extra shock absorbency. The inner rack comes trimmed out with aluminum extrusion for extra support. This rack comes standard with eight heavy-duty padlockable recessed catches, four heavy-duty recessed handles, metal corners, rear rack rail and large 4" casters with two brakes. Heavy-duty aluminum extrusion and 3/8" plywood with a laminate finish is also standard.