Sauna Next to the Pool: Planning and Placement Guide

Sauna Next to the Pool: Planning and Placement Guide

A sauna next to the pool is one of those upgrades that makes you wonder why every pool owner does not do it. The hot-cold contrast is incredible - heat up in the sauna, walk ten steps, and jump in the pool. It is a wellness routine that people pay serious money for at spas, and you can have it in your backyard.

Here is how to plan the placement so everything works together.

How Far Should the Sauna Be from the Pool?

Close enough to make the transition easy, but not so close that it creates problems. Most people find that 8 to 15 feet from the pool edge is the sweet spot.

Going closer than 6 feet creates a few issues:

• Pool splash water hitting the sauna exterior accelerates wood deterioration, especially from chlorinated or salt water
• Humidity from the pool surface can linger around the sauna, affecting its wood over time
• Building codes in many areas require a minimum setback from pools for heated structures

Going further than 20 feet is fine structurally, but it takes the fun out of the hot-cold transition. You want a quick walk, not a hike.

Placement and Orientation

Think about the traffic flow: sauna door, path to pool, pool entry point. Ideally, the sauna door faces the pool so you step out and walk straight to the water. A clear, non-slip path between the two is important since you will be barefoot and wet.

Good path materials include:

• Textured concrete or stamped concrete
• Natural stone pavers with a rough surface
• Composite decking
• Rubber deck tiles (especially around the pool edge)

Avoid smooth tile, polished stone, or anything else that gets dangerously slippery when wet.

Drainage Between Sauna and Pool

Water from the sauna (condensation, people dripping as they walk out) should drain away from both the sauna base and the pool. You do not want sauna runoff flowing into the pool because it can affect water chemistry. A slight grade in the path that directs water to the lawn or a landscape drain works perfectly.

Similarly, pool overflow or backwash should not drain toward the sauna. Chlorinated water sitting against the base of a wooden sauna will cause premature rot.

Shared Electrical Planning

If you already have a pool, you have a sub-panel or dedicated electrical run nearby. This is a big advantage for sauna installation. Your electrician may be able to add the sauna circuit to the existing pool sub-panel, saving money on the electrical run.

Key requirements:

• The sauna heater needs its own dedicated circuit - it cannot share with the pool pump or heater
• All outdoor electrical must be GFCI protected
• The disconnect switch for the sauna should be visible from the sauna location
• Bury conduit runs at the proper depth per local code, keeping clear of pool plumbing

Pool Chemistry Considerations

Here is something most people do not think about: sauna users getting into the pool. After a sauna session, your body has shed sweat, dead skin cells, and any lotions or products on your skin. All of this goes into the pool water.

A quick rinse shower between the sauna and pool solves this. An outdoor sauna paired with a simple outdoor shower creates a clean transition path. You will use less pool chemicals and keep the water cleaner.

Wind and Weather Protection

Position the sauna where it has some wind protection if possible. A fence, hedge, or the house itself on the windward side keeps the sauna entrance comfortable and reduces heat loss every time you open the door.

A barrel sauna handles weather exposure particularly well because the curved shape sheds rain and snow naturally. Traditional cabin-style saunas work great too but benefit from a small overhang above the door.

What About Hot Tubs?

If you have a hot tub by the pool already, adding a sauna creates a complete contrast therapy circuit: sauna, cold pool, warm hot tub. The three together give you the full Nordic-style experience without leaving your backyard.

Bottom Line

A sauna 8 to 15 feet from the pool is the ideal distance for most setups. Keep the path clear and non-slip, plan drainage so water flows away from both structures, take advantage of existing pool electrical infrastructure, and consider adding a rinse shower in between. The sauna-to-pool routine is genuinely one of the best upgrades a pool owner can make.

Explore our outdoor sauna collection and barrel saunas to find the right poolside companion.