Sauna and Shower Combo: Putting Them Together

Sauna and Shower Combo: Putting Them Together

Having a shower right next to or integrated with your sauna makes the whole routine smoother. You rinse off before entering, wash away sweat after each session, and do a cold rinse for contrast if you are into that. No dripping through the house, no sharing the family shower with your post-sauna mess.

There are several ways to make this work depending on your space and budget.

Layout Options

Shower in the Same Room, Adjacent to the Sauna

This is the most common approach for indoor installations. The sauna sits in a corner of a larger tiled room, and the shower is on the opposite wall or in a nearby alcove. You step out of the sauna, take two steps, and you are in the shower.

This works well in basements, master bathroom renovations, and dedicated wellness rooms. The entire room needs to be waterproofed and tiled since both the sauna and shower generate moisture.

Shared Anteroom With Shower

The sauna has its own enclosed hot room, and the area immediately outside the sauna door includes a shower. This keeps the shower separate from the hot room (important because running water cools the sauna air) while keeping everything within a few feet of each other.

This is the layout you see in most high-end home spas and gym locker rooms. The anteroom handles all the wet activity while the sauna stays hot and dry.

Outdoor Sauna With Outdoor Shower

For outdoor saunas, an outdoor shower mounted on the exterior wall of the sauna or on a nearby post is a simple and effective solution. You step out, rinse off under the outdoor shower, and you are done. No plumbing running through the sauna walls - the shower is completely separate.

Plumbing Considerations

Adding a shower near the sauna means running water supply and drain lines. A few practical points:

• Hot and cold supply - You want both. A cold-only shower is fine for contrast therapy, but you will appreciate warm water for pre-sauna rinses and hair washing.
• Floor drain - The shower area needs a properly sloped floor draining to a waste line. This is standard plumbing work but needs to be done before the floor is finished.
• Water heater capacity - If you are adding a shower where one did not exist before, make sure your water heater can handle the additional demand. A tankless water heater dedicated to the sauna area is an option if your main heater is maxed out.
• Outdoor plumbing - For outdoor showers in cold climates, the water supply line needs to be below the frost line or have a shutoff and drain-down option for winter. Burst pipes are not a fun surprise in January.

Waterproofing the Shared Space

This is where indoor sauna-shower combos get tricky. The shower area needs full waterproofing, but the sauna area needs vapor barriers and heat management. The two have different requirements, and the transition zone between them needs to handle both.

Key rules:

• The sauna floor and the shower floor should be on the same level or the shower should be slightly lower. Water should always flow toward the shower drain, never toward the sauna.
• Install a waterproof membrane (like Kerdi or RedGard) on the shower area walls and floor. This membrane stops at the sauna wall - the sauna has its own vapor barrier system.
• Use tile or stone on the floor of the shower area and the transition zone. Wood floors outside the sauna look nice but require more maintenance in wet areas.
• Ensure ventilation handles both sauna steam and shower steam. An exhaust fan rated for bathroom use (minimum 80 CFM) is essential for the shared space.

Keeping the Sauna Dry

The biggest mistake with sauna-shower combos is letting shower water get into the sauna. Water on the sauna floor is fine in small amounts (from pouring water on stones), but standing water from a nearby shower degrades the wood quickly.

Prevent this by:

• Maintaining a clear physical separation between the shower zone and the sauna entry
• Sloping all floors away from the sauna toward the shower drain
• Using a threshold at the sauna door to block water from flowing in
• Keeping the sauna door closed during showers

Design Tips for a Great Combo Space

• Bench outside the sauna - A teak bench in the shower or transition area gives you a place to sit while rinsing or cooling down.
• Towel hooks - Install them in the dry zone between the shower and sauna, not inside either one.
• Lighting - Waterproof recessed lighting works in both wet and hot environments. Dimmable fixtures let you set the mood.
• Glass sauna door - A glass door lets you see between the shower area and the sauna, making the space feel larger and more connected.

Bottom Line

A sauna-shower combo is one of the smartest home wellness upgrades you can make. The shower handles pre-rinse, post-sauna wash, and cold contrast all in one spot. Keep the sauna and shower separated by at least a few feet, waterproof the shower zone thoroughly, slope floors toward the shower drain, and ventilate the entire space well. The result is a compact wellness area that feels like a high-end spa.

Browse our indoor sauna collection for models that work great alongside a shower installation.