Wet Rooms: The Open-Concept Bathroom Trend, Explained | Bath Miami

A wet room is a fully waterproofed bathroom where the shower is open to the rest of the space, with no curb, tray, or enclosure separating it from the floor. The result is a seamless, spa-like room that feels larger, cleans easily, and looks unmistakably modern. Here is how wet rooms work and what to consider before building one in your home.

What actually makes a room a wet room

The defining feature is the tanking, a continuous waterproof membrane applied across the floor and lower walls before tiling. The entire floor slopes gently toward a linear or central drain, so water flows away no matter where it lands. Because there is no glass box to step into, an open walk-in shower setup blends directly into the room, often with just a single glass splash panel for control.

The open-concept appeal

Wet rooms shine in two scenarios: very small bathrooms and very luxurious ones. In a compact space, removing the shower enclosure visually opens the entire footprint, making a tiny bathroom feel dramatically bigger. In a large primary suite, the open layout lets you pair a curbless shower with a sculptural tub for a true retreat. A freestanding bathtub placed within the waterproofed zone is the signature high-end wet room move.

Drainage and the floor slope

Proper drainage is non-negotiable. The floor needs a fall of roughly 1 to 2% toward the drain, which works out to about a quarter inch of slope per foot. Linear drains placed along one wall make this gradient nearly invisible and allow large-format tiles to run cleanly across the floor. Get the slope right and water never pools; get it wrong and you have standing puddles.

Choosing slip-resistant materials

Since the whole floor gets wet, traction matters everywhere, not just in the shower. Look for tiles with a higher slip rating, a matte or textured finish, and smaller formats near the drain where extra grout lines add grip. Porcelain is the go-to surface because it is waterproof, durable, and available in finishes engineered for wet underfoot conditions.

Is a wet room right for you?

Wet rooms require professional waterproofing and a reliable, powerful exhaust fan to clear humidity, which is especially important in a damp Miami climate. They are ideal for accessibility, since a curbless entry is easy to walk or roll into. The main trade-offs are the upfront waterproofing investment and keeping the whole space ventilated. For the right home, though, the payoff is a striking, low-maintenance bathroom that feels like a boutique hotel.

Thinking about an open-concept bathroom? Visit the Bath Miami showroom to explore curbless shower systems, glass panels, and tubs, and let our team help you plan a wet room that fits your space.