A few essentials are nonnegotiable in any bathroom: a toilet, a sink, and, in a full bath, a bathtub or shower. Because of these must-haves, many homeowners assume their design options are limited.

Showers should be a place for relaxation, self-care, and, of course, getting clean. For a long time, walk-in showers were considered one of the best options. However, walk-in showers come with ...