What is the Best Floor for an Outdoor Sauna?

When it comes to building an outdoor sauna, choosing the right flooring is crucial.

The floor must be able to withstand high temperatures and moisture, while also providing a safe and slip-resistant surface.

With so many options available, it can be difficult to determine which is the best for your outdoor sauna.

In this article, we’ll discuss the different types of flooring that are suitable for outdoor saunas and help you make an informed decision.

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Understanding the Importance of Sauna Flooring

Before we delve into the different types of flooring, it’s important to understand why the flooring is so crucial to the overall safety and functionality of an outdoor sauna.

The high temperatures and moisture levels in a sauna can cause certain materials to warp, rot, or even catch fire.

The flooring must also be slip-resistant to prevent injuries, particularly when exiting the sauna.

Types of Sauna Flooring

1. Concrete

Concrete is one of the most popular types of flooring for outdoor saunas. It is durable, heat-resistant, and can be customized with different colors and textures.

Concrete is also relatively inexpensive and easy to maintain. However, it can be slippery when wet, so it’s important to add a non-slip coating to the surface.

2. Natural Stone

Natural stone, such as granite or slate, is a beautiful and long-lasting option for outdoor sauna flooring.

It is slip-resistant and can withstand high temperatures and moisture levels.

However, it can be expensive to install and may require periodic sealing to prevent stains and moisture damage.

3. Ceramic Tile

Ceramic tile is a popular choice for indoor saunas and can also be used outdoors.

It is heat-resistant, slip-resistant, and easy to clean.

However, it can be prone to cracking under extreme temperature changes and may require regular re-grouting.

4. Wood

Wooden flooring is a traditional option for saunas and can add a natural, cozy feel to the space.

However, not all types of wood are suitable for sauna flooring. Softwoods, such as pine or spruce, are not recommended as they can absorb moisture and warp.

Hardwoods, such as cedar or redwood, are a better choice as they are naturally resistant to rot and moisture.

It’s important to regularly seal and maintain wooden flooring to prevent damage.

5. Rubber

Rubber flooring is slip-resistant, durable, and easy to clean. It can also be customized with different colors and patterns.

However, it may not be as heat-resistant as other options and can emit a strong odor when first installed.

Factors to Consider When Choosing Sauna Flooring

When choosing the flooring for your outdoor sauna, there are several factors to consider:

1. Budget

The cost of different flooring options can vary widely.

Concrete is typically the most affordable option, while natural stone and hardwoods can be more expensive.

2. Climate

The climate in your area can also impact the type of flooring you choose.

For example, if you live in a wet or humid area, you may want to opt for a flooring material that is more resistant to moisture.

3. Style

The flooring you choose should also complement the overall style and design of your outdoor sauna.

4. Maintenance

Different types of flooring require different levels of maintenance. Consider how much time and effort you’re willing to put into maintaining your sauna flooring.


Choosing the right flooring for your outdoor sauna is crucial for both safety and functionality.

Concrete, natural stone, ceramic tile, wood, and rubber are all suitable options, each with their own pros and cons.

Factors to consider when choosing sauna flooring include budget, climate, style, and maintenance requirements.

By carefully considering these factors, you can select the best flooring option that suits your needs and budget.


  1. Can I use regular wood flooring in my outdoor sauna?

No, regular wood flooring is not recommended for outdoor saunas as it can absorb moisture and warp. Hardwoods, such as cedar or redwood, are a better choice.

  1. Do I need to seal my sauna flooring?

Yes, most types of sauna flooring require periodic sealing to prevent moisture damage and staining.

  1. Is ceramic tile slippery when wet?

Ceramic tile can be slip-resistant when installed with a textured surface or non-slip coating.

  1. How much does it cost to install outdoor sauna flooring?

The cost of installing outdoor sauna flooring varies depending on the type of flooring you choose and the size of your sauna. Concrete is typically the most affordable option, while natural stone and hardwoods can be more expensive.

  1. Can I install the flooring myself?

While some types of sauna flooring can be installed as a DIY project, it’s often best to hire a professional to ensure proper installation and safety.

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