Alcove Tub — Standard Sizes, Types, and Replacement

An alcove tub is a bathtub designed to fit into a three-walled recess, finished on one long side with an apron panel and surrounded by walls on the remaining three sides.

Alcove Tub diagram — labeled parts, dimensions, and installation context

What It Is

The alcove configuration is the most common residential bathtub layout in North America. The tub drops into a framed opening between two end walls and a back wall, with the apron facing the bathroom. Because three sides are enclosed, only the apron face receives a finished surface from the tub itself — the surrounding walls are typically covered with tile or a tub surround.

Alcove tubs are usually made from acrylic, fiberglass, or enameled steel. Standard length is 60 inches, though 54-inch and 66-inch versions exist. The drain end can be configured left or right depending on which end the plumbing rough-in is located.

Types

Basic alcove tubs are soaking-only. Whirlpool and air-jet versions add motorized jets for hydrotherapy. Some models include an integral showerhead connection and diverter, making them combination tub-shower units — the most common arrangement in American bathrooms.

Where It Is Used

Alcove tubs are used in full bathrooms where space is limited and the three-wall installation maximizes usable floor area. They are standard in most production homes and apartment builds.

How to Identify One

An alcove tub sits flush against three walls with a finished apron panel facing the room. The apron usually has a small gap at the floor where it meets the tile or vinyl, and the tub deck is level with or slightly above the surrounding wall surface.

Replacement

Replacement requires removing the wall surround or tile on at least two sides to free the tub flange. Standard 60-inch tubs are generally interchangeable if the drain location matches. Verify left-hand or right-hand drain orientation before ordering.

Alcove Tub — FAQ

What is the standard size of an alcove tub?

The most common size is 60 inches long by 30 inches wide by 14–16 inches deep. This fits the standard 5-foot alcove found in most production homes. Shorter 54-inch models exist for tight spaces, and longer 66-inch or 72-inch models are available for custom builds.

What is the difference between a left-hand and right-hand drain alcove tub?

The designation refers to which end of the tub has the drain when you are standing at the open (apron) side facing in. A left-hand drain tub has the drain on the left end; right-hand on the right. This must match your plumbing rough-in location before you purchase a replacement.

Do I need a special surround for an alcove tub?

Any waterproof wall system works — tile, a prefabricated [tub surround](/wiki/tub-surround/), or solid-surface panels. The walls above the tub deck must be fully waterproofed up to the showerhead height if the tub is used with a shower. Pre-tiled surrounds and snap-together panels are popular for straightforward replacements.

Can an alcove tub be replaced without gutting the bathroom?

Sometimes. If the existing tile or surround is already damaged, removal is expected. If the surround is intact, a skilled installer may cut the drywall behind the tub flange, slide the old tub out, and slide the new one in with minimal wall damage. This depends on doorway clearance and the specific tub model.

How long does an acrylic alcove tub last?

Acrylic tubs typically last 15–30 years with normal use. Surface crazing, cracking at the drain, or a soft flexing floor are signs the tub is nearing end of life. Enameled cast-iron tubs can last 50 years or more if the enamel is maintained.