The minimum depth for a closet is 24 inches, according to construction expert Tracy DeCarlo. This allows room for clothes hangers to fit in the space without extending past the door frame. A depth of at least 30 inches is recommended for hanging larger items, such as heavy winter coats.
Home plans reflect measurements and dimensions before drywall is added. An extra inch should be allotted for the drywall to achieve the correct measurements for the closet. Closet depth, door and window location, door swing, ceiling height and general configuration of a closet can all have an effect on efficiency. Deep return walls can hide objects placed behind them and should be avoided.