Closet doors are doors used in closets.  It sounds simple, but some people are confused by what a closet door is, and the types of doors that you can use for closet doors.  First, closet doors can any type of door made.  A closet door unit can be raised panel doors, flat panel doors, glass french doors, bifold doors, multifold doors, v-groove doors, or just about any type of door that is made. Closet doors can be  configured as bifolds, multifolds, bypass, and even as pocket doors.  It is a closet door solely by the definition of closing off a closet from the rest of a room.  All these closet door types are available at InteriorDoors.com, as well as the correct hardware from one of our online stores at  ClosetDoorProducts.com and PocketDoorProducts.com