24 CFR Part 100—Fair Housing Accessibility Guidelines

(vii) Stall showers in the bathroom may be of any size or configuration. A minimum clear floor space 2'6" wide by 4'0" should be available outside the stall. (See Figure 7(d).) If the shower stall is the only bathing facility provided in the covered dwelling unit, or on the accessible level of a covered multistory unit, and measures a nominal 36 x 36, the shower stall must have reinforcing to allow for installation of an optional wall hung bench seat.

(d) Clear Floor Space at Shower

Fig. 7 Clear Floor Space for Adaptable Bathrooms