A bathtub adapted to be secured in an opening defined by a tiled horizontal surface. The tub includes a sump portion having a bottom wall and an upstanding wall having a lower edge joined to said bottom wall and an upper edge. An essentially flat horizontal planar surface extends outwardly from the upper edge of the sidewall. The horizontal planar surface has a finished appearance and a selected thickness so that the planar surface rests flush with the tiled horizontal surface.