- Middle Atlantic Products the new C-5 Credenza Rack Series is designed with a steel frame that ships quickly from stock, and a separate outer covering that can be tailored to the customer’s specifications. With this approach, the C5 Credenza Rack eliminates long waits, speeds up integration and reduces the effects of shipping damage by shipping the outer Credenza surfaces separately from the rack structure. Installers can choose from one, two or three bay rack sizes with a choice of styles and colors. The inner steel structure for the Credenza rack ships directly from one of Middle Atlantic’s five North American warehouses, allowing integrators to begin the integration of the system immediately.