Standard Bathtub Sizes: Guide to Common Tubs

The typical bathroom is already so starved for space that it can be like a jigsaw puzzle trying to comfortably fit everything in. Large pieces such as the toilet, shelving, and bathroom vanity crowd into this tiny area, and every square inch is at a premium. And the one element that takes up the most space is the bathtub or bathtub/shower combination.

A standard-sized bathtub displaces more than 13 square feet of floor space; a corner shower stall unit, while it occupies about 30 percent less room, still takes up about 9 square feet. Since small full bathrooms can be as small as 36 to 40 square feet, positioning the bathtub is no easy feat.

Standard Bathtub Sizes: Guide to Common Tubs

Because bathrooms tend to be small spaces with many elements, space planning is of utmost importance. Homeowners and designers working out bathroom plans often find themselves nudging items by inches rather than by feet in order to get things just right. Knowing standard bathtub sizes is the first step toward smart, effective bathroom planning.

As you plan the location for your tub, remember that designers recommend the free space in front of the tub should be a minimum of 60 inches long and 30 inches wide, to allow users to safely enter and exit the tub.

In practice, this may not be also possible, but even in small, cramped bathrooms, the toilet or vanity cabinet should be spaced at least 12 inches away from the edge of the tub, and the rest of the tub should have open floor space at least 24 inches wide.

Standard Size Bathtub

While bathtubs differ, if any tub can be called standard-size it would be the ever-popular 60 inch-long, 30 inch-wide alcove bathtub, with an apron at the front. Bounded by three walls, it's a versatile tub that fits in the alcoves of most small bathrooms.

Typical Bathtub Sizes

Averages and ranges for bathtub sizes for standard bathtubs, plus specialty tubs like oval, corner, and whirlpool bathtubs.