To provide a bathroom unit in which deformation caused by the weight of a wall panel or the like is surely suppressed and the value of design inside a bathroom can be prevented from being lowered by improving dimensional accuracy.

In the bathroom unit in which a floor is formed by linking a bathtub floor to install a bathtub and a washing space floor to provide a washing space and the wall panel is assembled on the floor, the floor is composed of a frame-shaped metal frame having an opening on its upper surface side and a water-proof pan installed in the opening of the metal frame, and the wall panel is assembled while positioning its lower end on the outer peripheral terminal of the metal frame via a wall supporting member without being supported by the water-proof pan.