Abstract: A convertible shower stall platform and ramp combination is shown for use with an invalid's shower chair. The shower stall platform has leveling screws and a vertical flange around at least three sides and drain holes formed near the rear flange. There is a ramp for connection to the front edge of the platform. A turning platform may also be used assembled to the front edge of the shower stall platform where the ramp is capable for connection to either the right or left side of the turning platform and quick-release pins are provided between the ramp and turning platform and between the turning platform and the shower stall platform. The sides of the ramp and of the turning platform have vertical, upturned flanges to guide and retain the wheels of the invalid's chair as the invalid is transported up the ramp and onto the shower stall platform by an attendant. There is a removable safety bar installed across the front edge of the shower stall platform to retain the invalid's chair within the shower stall.