Panel Doors
Panel doors are quite common interior doors in contemporary homes, as they can be made in a variety of panel configurations to best suit your style. Usually built using wood or medium-density fiberboard (MDF), panel door patterns can range from a single large panel all the way to eight smaller panels, with the added option of including rounded or square tops or even glass panels.
Flush Doors
Flush interior doors are simple and smooth on both sides, and are generally made with basic wood or MDF. Hollow or solid core flush doors are usually available primed for painting or pre-finished in an elegant wood veneer. Typically, flush doors are homeowner's least expensive option for interior doors, and they are well suited for all areas of the home because of their simple design.
Bifold (Folding) Doors
Made in hinged-together pairs, bifold or folding interior doors slide on an overhead track and fold in on either side. With their ease of access, bifold doors are best for small spaces where a conventional door’s swing would be restricted, such as closets, laundry rooms, or pantries.
Sliding Doors
Sliding interior doors are usually made of wood or glass and are hung from rollers that run along an overhead track. Sliding doors are mounted in pairs or threes and slide past one another to allow easy access to a space. Because they take up minimal space, they are commonly used for closet doors. Many closet sliding doors can also be bought with built-in mirror panels, providing a mirror and ensuring that the door still slides smoothly.
Blind Doors
Blind interior doors have no visible trim, handles or hinges, and are designed to completely blend in with the surrounding wall. To help conceal its presence, the blind door usually is made with the same finish as the wall behind it. The blind door design can help a doorway appear less obtrusive, and keep the door from detracting too much from the room's design or décor. These interior doors are sometimes used for symmetry purposes as well. If a single operating door is installed on one side of the room, a disguised blind door may be used at the other side to keep the room looking symmetrical.
Pocket Doors
Pocket interior doors can be used all over the house, as their innovative design allows the door to slide into a “pocket” that is built into the adjoining wall. An increasingly popular door style in modern homes, pocket doors have an easy-to-hide design, similar to blind doors. Homeowners often prefer pocket doors over sliding doors, because pocket doors actually slide into the wall itself and don't require any space to swing open.
Barn Doors
Traditionally used in barns, these interior doors have been adopted as interior doors in homes and can give your home a rustic look. Barn doors are most commonly used in homes to offer an elegant entrance to a large living room, or to provide separation between the master bathroom and bedroom.