The S/E Cabinet comes fully assembled, just add shelves at the spacings desired.3 shelves included (standard on DSP models) and adjust on 1" increments. Optional single shelf kit available to add additional shelves to cabinet. Perforated locking doors with 4 hinges each.30"D cabinet with steel back panel and two 3" dia. pop-outs. All-welded steel construction. Features adjustable leveling guides. Available in Black, Graphite and Desert Sage. Tamper-proof hinges inside cabinet, not accessible from outside. Hinge will hold doors open or keep closed without engaging the lock. Great for storing electrical equipment due to the ventilated design and pop-outs at rear of cabinet for power purposes