Pocket Door — Sliding Wall-Cavity Door Types and Use

A pocket door is an interior door that slides on a concealed track and disappears into a wall cavity instead of swinging into the room on hinges.

Pocket Door diagram — labeled parts, dimensions, and installation context

What It Is

A pocket door solves the floor-space problem of a swinging door. When open, the slab rolls fully into the wall pocket, clearing the entire doorway. This makes pocket doors popular for bathrooms, closets, and tight hallways where a hinged door would block furniture or traffic.

The door rides on a track and roller system mounted inside the wall above the opening. The wall framing around the pocket must be built around a steel frame kit that creates the cavity and supports the track. Because so much of the hardware is hidden inside the wall, quality of the original installation matters more than it does for a standard hinged door.

Pocket doors require more wall thickness than a standard partition. A typical residential pocket requires a wall wide enough to accept the full slab when open, usually meaning the rough opening is roughly twice the door width. This is straightforward in new construction but more involved in a retrofit.

Types

Single-slab pocket doors are the most common residential type — one panel slides into one wall pocket. Double pocket doors, sometimes called barn-style center-opening pocket doors, use two panels that slide into pockets on each side of the opening. Bypass or pass-through pocket doors are used on larger openings like closets or room dividers.

Where It Is Used

Pocket doors are used in bathrooms, bedrooms, closets, pantries, offices, laundry rooms, and between rooms where saving floor space is important. They are especially common in compact floor plans and accessible design where a swing-clear opening is required.

How to Identify One

A pocket door has no hinges, a recessed edge pull instead of a standard door knob, and a wall cavity beside the opening that the door slides into when open. The door frame on the pocket side has no casing on the wall surface — just a finished edge where the door disappears.

Replacement

Full slab replacement requires removing the trim and accessing the hardware inside the wall. The new slab must match the original height, width, and thickness to fit the existing pocket frame and track. Hardware replacement is often possible without removing the slab if only the rollers, pulls, or guides have failed. See pocket door hardware for the components that wear out most often.

Pocket Door — FAQ

What is a pocket door and how does it work?

A pocket door slides on a concealed overhead track into a cavity inside the wall, instead of swinging on hinges. When fully open the slab is hidden inside the wall pocket and the full doorway is clear. The track and rollers are mounted inside the wall above the opening as part of a steel frame kit installed during framing.

Can a pocket door be added to an existing wall?

Yes, but it is more involved than new construction. The wall must be opened, the framing modified to create the cavity and install the pocket frame kit, and the wall finished and trimmed again. Load-bearing walls require additional planning. The work is manageable but not a simple hardware swap.

Why does my pocket door not slide smoothly?

Common causes are worn or broken rollers, a bent or dirty track, loose mounting hardware inside the wall, or a door slab that has warped. Many roller and guide issues can be addressed by removing trim and accessing the head of the opening without opening the full wall.

What hardware does a pocket door need?

The door needs a track and roller hanger system, a floor guide, edge pulls for opening and closing, and a [privacy lock](/wiki/privacy-lock/) or passage latch if the room requires one. See [pocket door hardware](/wiki/pocket-door-hardware/) for a full breakdown of components.

Are pocket doors as soundproof as hinged doors?

Generally no. The wall cavity around a pocket door is harder to insulate for sound, and the door sits in a track rather than sealing against a stop. Standard pocket doors allow more sound transfer than a solid-core hinged door in a properly gasketed frame.

How thick does a wall need to be for a pocket door?

Most residential pocket door frame kits are designed for 2x4 framing with standard drywall on each side, resulting in a finished wall thickness of about 4.5 inches. Deeper walls can accommodate thicker slabs or specialty kits.