A wet room bathroom is a type of bathroom that is specifically designed to get wet. These bathrooms tend to have waterproof decor, open showers, floor-to-ceiling tile, and more. They often tend to be larger and take on a spa-like feel with multiple showerheads.
Wet rooms also sometimes include a bathtub. The shower and bathtub are either left completely open or are enclosed together behind a single pane of glass. Instead of the water draining into a shower tray, it drains via the main drain in the bathroom, which is usually in the open, tiled area of the bathroom.