With a front to rear mounting adjustment range from 19-1/2” to 28” deep, the versatile AS3-22 shelf is vented and rackmounts most video decks and tower CPUs. Built expressly for heavy equipment, ships ready-to-assemble with included hardware and supports 300 lbs. NOTE: Fits in racks with a minimum 19-1/2” from front to rear rail. Heavy-duty 4-point mounting shelf has high 300 lb capacity Mounting range from 19-1/2” to 28” (rack minimum 25” deep overall) Shelf surface is 22-1/4” deep Ready-to-assemble design ships flat to save space