Truly versatile storage. Stack them in any combination. All units are the same size, so can be placed on top of each other in any configuration you choose. Combine the versatility of having either shallow or extra deep storage with open shelving - ideal for creating book shelving or a display area within your classroom and nursery.Size of each unit W136 x D450 x H610.All units are manufactured from beech veneer and are delivered fully assembled, and have trays included where specified. The Combination storage offer includes; a 4 Open Compartment Unit (FU00344) and 1 12 Shallow and 4 Extra Deep Tray Unit (FU00342).