Swinging Door: This is a hinged door that swings into or out of a room and is the most standard interior door application.

Bifold Door: A folding door that has several sections that fold in pairs. Bifolds are most commonly made for closets but may also be used between rooms.

Bypass Door: A bypass door consists of two or more sections that can slide in either direction along one axis on parallel overhead tracks so that they slide past each other. They are most commonly used as closet doors to access one side of the closet at a time. The doors in a bypass unit will overlap slightly when viewed from the front to eliminate any visible gap between them.

Barn Door: An on-trend interior door option that uses externally mounted hardware to allow the door to slide over an opening without taking the space needed for a swinging door.