The Steel Rolltop cabinet comes in two standard desktop heights – 30” to the desktop or 23.75”. The Base Cabinets shown above provide storage for rack components. The Base Cabinet for the 30″ desktop provides 14 rack units and the 23″ provides 10 rack units. The depth of the base cabinet is 23″. The cabinet racks are recessed 1.5″ to provide room for equipment knobs and buttons. The hinged doors are removable from the inside and can be ordered hinged left or right.