Modular furniture creates endless solutions for office organization. 3/4" thick compressed wood cabinetry with a durable laminated finish. Shelves adjust in 2 1/2" increments; shelf counts include bottom of bookcase. Hinged doors feature a translucent plastic insert for a modern appearance. Open cabinets have a fully finished back; cabinets with doors have a black back. Contemporary black elliptical door/drawer pulls. 30" high units may be stacked two high to create a custom storage arrangement. Apres™ File Drawer Cabinet with Shelf can only be used on bottom.