An alcove tub is a type of bathtub that is installed into a recess in your bathroom, which means quite commonly they are installed with three joining walls or a tub/shower combination to save space. The term "alcove" refers to the three-sided enclosure built just for the tub. Alcove bathtubs are often the least expensive and easiest type of tub to install, typically costing from about $250 to $600 depending on the material and construction. The standard length for an alcove tub is 60 inches, but some can range from 53 to 72 inches. When the walls are tiled or fitted with panels, the enclosure can be used for a tub/shower combination. Alcove tubs can come as part of a package that includes the three-sided wall surround. In some cases, the wall surround is permanently attached to the bathtub, while others are detached.