Flat pack 457mm / 17.99" and 600mm / 23.62" deep rack enclosures with stylish, modern appearance. Overall width: 543mm / 21.38". Front and rear mounting rails. Well ventilated top, base, front sections. Ventilation on side panels for 600mm / 23.62" deep models. Pre punched for Contractor castor base kit. Optional lockable Contractor front doors. Optional RP Contractor Rear Panels. Flat pack and easy assembly.