Styles & configurations

A door's configuration determines how it operates and how much space it needs to do so. The right choice depends on the opening size, available swing clearance, and how the space is used. This section covers the six most common configurations found in residential homes.

Panel doors

Panel doors are the default configuration for most residential interiors and many exteriors. They consist of a stile-and-rail frame — vertical stiles and horizontal rails — surrounding one or more recessed or raised panels. The panel count and arrangement is largely aesthetic: two-panel, four-panel, six-panel, and flat one-panel (flush) variations are all common.

Panel doors are hinged on one side and swing in a single direction. They require clearance equal to the door's width on the swing side, which is the main practical constraint.

Best for: Bedrooms, bathrooms, exterior entries — any standard hinged opening.

Flush doors

Flush doors have a completely flat face on both sides, with no panel detail. They're common in modern and contemporary interiors, utility spaces, and commercial construction. Most hollow-core and solid-core doors are technically flush doors with a wood veneer or smooth hardboard skin.

They're simpler to paint than panel doors (no edges to cut in around) and tend to be slightly less expensive for a comparable core.

Best for: Modern interiors, utility rooms, and spaces where a clean unadorned look is preferred.

French doors

French doors are glazed panel doors — full or partial glass panels set into the stile-and-rail frame. They typically come in pairs that meet at the center, though single French doors hinged to a fixed sidelight are also common.

The glass introduces some considerations worth noting. Exterior French doors need to be carefully weatherstripped and the glazing should be insulated (double or triple pane) to avoid becoming a significant source of heat loss. Interior French doors are primarily aesthetic — they borrow light between rooms at the cost of sound and visual privacy.

Hardware for paired French doors typically includes a primary active door with a standard latch and an inactive door held by surface bolts top and bottom.

Best for: Between living and dining rooms, as patio or garden doors, or anywhere borrowed light is the goal.

Sliding doors

Sliding doors hang from an overhead track and slide horizontally rather than swinging. Because they don't require swing clearance, they're useful where floor space is constrained. The tradeoff is that a sliding door always leaves half the opening blocked — one panel is always covering the other.

Patio sliding doors are the most common exterior application: a large glazed panel slides in front of a fixed panel. Interior sliding doors are sometimes used for closets or to separate larger rooms.

Weatherstripping on sliding doors is less effective than on hinged doors by nature of the design — the panels slide past seals rather than compressing into them. This makes sliding doors a weaker choice for exterior applications in harsh climates.

Best for: Patio access, wide closet openings, and spaces where swing clearance isn't available.

Pocket doors

Pocket doors slide into a cavity built into the wall rather than along the face of it. When open, they disappear entirely — the opening is unobstructed on both sides. This makes them the best choice for tight spaces where even a sliding barn door would intrude.

The cavity requires planning: pocket doors are much easier to install during new construction or a full renovation than as a retrofit. The wall section that contains the pocket also can't carry plumbing, electrical, or structural loads without significant complication.

Hardware access is limited once the door is installed. If the roller mechanism fails, repair typically means opening the wall.

Best for: Bathrooms, closets, and between-room openings where space is genuinely at a premium and the wall can be built around the pocket.

Bifold doors

Bifold doors consist of two panels hinged together that fold against themselves when opened, guided by a top track and a pivot point at the floor. They're most commonly used for closets, where they allow nearly full-width access to the opening without the swing clearance of a standard door.

The folded panels do intrude slightly into the room when open, and the pivot and track hardware requires occasional adjustment — bifold doors are among the more finicky configurations to keep aligned. The center seam between panels also means they don't seal as cleanly as a hinged door.

Best for: Reach-in closets, laundry alcoves, and utility openings where wide access matters.

Barn doors

Barn doors slide along a surface-mounted track on the wall above the opening. They're a popular aesthetic choice in contemporary and farmhouse interiors. Like sliding doors, they never fully clear the opening — the door panel slides to one side, covering the adjacent wall.

Because the track is surface-mounted, barn doors require a clear wall section at least as wide as the door on the slide side. They also don't seal against the frame, which makes them a poor choice anywhere privacy or sound control matters.

Best for: Pantries, laundry rooms, and decorative applications where the look is the primary driver and sealing isn't a concern.

Comparison at a glance

Configuration	Swing clearance needed	Seals well	Best application
Panel	Yes	Yes	Standard hinged openings
Flush	Yes	Yes	Modern or utility spaces
French	Yes	Yes (if well fitted)	Light-borrowing interior or patio
Sliding	No	Fair	Patios, wide closets
Pocket	No	Good	Tight spaces, retrofit-unfriendly
Bifold	Partial	Fair	Reach-in closets
Barn	No	Poor	Decorative, low-privacy spaces

Next: Hardware

Configuration determines how a door moves. Hardware covers what controls it — hinges, handles, locks, and everything in between.