Closet Layout Ideas, A closet (especially in North American usage) is an enclosed space, with a door, used for storage, particularly that of clothes. Fitted closets are built into the walls of the house so that they take up no apparent space in the room. Closets are often built under stairs, thereby using awkward space that would otherwise go unused.
A piece of furniture such as a cabinet or chest of drawers serves the same function of storage, but is not a closet, which is an architectural feature rather than a piece of furniture. A closet always has space for hanging, whereas a cupboard may consist only of shelves for folded garments.