How to build outdoor saunas with outdoor sauna kits?

Home saunas and sauna kits have become increasingly popular in recent years as people have become more interested in the health benefits of saunas. If you are tired or have aching muscles, an outdoor sauna can offer you a great way to relax and relieve tension. But you might think how can I have a sauna as they are so expensive. This is where sauna kits come in as you can easily assemble them yourself and save a lot of money. Let's find out how to build outdoor saunas with outdoor sauna kits.

What is a sauna kit?

A sauna kit is a pre-packaged set of materials that you need to build backyard saunas.

They usually include the walls, ceiling, door, benches, sauna accessories, and heater. They also include an institution manual which will help you easily assemble the sauna by yourself.

For people who don’t have a lot of experience with carpentry or building, sauna kits are a great option as they take out all the guesswork and stress of having to figure out how to build a sauna from scratch.

How much does a sauna kit cost?

Depending on the size and features, the pricing may vary. For example, if you are looking for accessories like a tempered glass door or a stereo system, that will cost you more.

On the other hand, a more basic sauna kit with just the essentials will cost you less.

The average price of a sauna kit is between $2000 to $10,000.

You have to keep in mind that many outdoor saunas tend to be more expensive than indoor ones as they require more materials and labor.

Also, a custom sauna will cost more than pre-built saunas. So, you must research and find the best option which suits both your needs and budget.

Different types of saunas

There are mainly 4 types of saunas:

1. Electric saunas

Electric saunas are the most popular type as they are easy to install and use.

Electric saunas use an electric heater to produce dry heat and they are more energy-efficient than wood-burning saunas.

The best part is that electric saunas don’t need too much ventilation and maintenance so you can easily enjoy your sauna session without any hassle.

2. Infrared saunas

Infrared saunas are ideal as a home sauna because similar to electric saunas, they are easy to set up and don’t need too much ventilation.

An infrared sauna uses infrared light to produce heat and this type of heat is more beneficial for your health as it penetrates your skin deeply and helps in blood circulation.

However, infrared saunas can cost more than any other type of saunas.

3. Wood-burning saunas

Wood-fired saunas are traditional saunas that offer an authentic sauna experience.

They are powered by a wood-burning stove and the heat produced is more intense than any other type of sauna.

But as they require a lot of ventilation, they are not ideal for small spaces. Also, they need more maintenance than any other type of sauna.

4. Outdoor barrel sauna

And lastly, we have outdoor barrel saunas which are a popular choice for people who want to enjoy the outdoors.

Outdoor barrel saunas are usually made of cedar and have a round shape. They can accommodate 2-4 people at a time and offer a unique experience.

Thanks to the barreled shape, it regulates heat very well and makes the sauna experience more enjoyable.

How to build an outdoor sauna?

So now that we know one or two things about outdoor saunas, let’s find out how you can build one with a sauna kit.

1. Find a spot

Outdoor saunas need to be placed on a flat and level surface. If you don’t have a level spot in your backyard, you can create one by leveling the ground with sand or gravel.

The location of your sauna also needs to be considered as it should be close to an electrical outlet and away from any trees or bushes.

Because if bad weather hits, you don’t want your sauna to be hit by branches or leaves.

2. Start building the floor frame

After finding the perfect spot, it’s time to start building the floor frame of your sauna.

Make sure to build a strong and sturdy frame as it will support the weight of the sauna and people.

You can use 2×4 lumber for the frame and screw them together with 3-inch screws. Once the floor frame is ready, you can attach the plywood to it.

Make sure to use exterior-grade plywood so that it can withstand the weather conditions.

3. Assemble the walls

Now it’s time to assemble the walls of the sauna. For this, you will need sauna panels which are available in different sizes.

You can either use T and G boards or tongue-and-groove cedar for the walls. Make sure to use exterior screws to attach the panels.

Use your sauna kit to assemble the door of the sauna. And once the walls are up, you can attach them to the floor frame.

4. Install the ceiling

After the walls, it’s time to install the ceiling of your sauna. For this, you will again need sauna panels which should be cut to size and screwed into place.

Make sure to leave enough space for ventilation as it is important for the sauna.

5. Install the heater

Installing the heater is pretty simple. Just follow the instructions that come with your sauna kit.

Don’t forget to double-check the wiring and make sure that everything is connected correctly.

6. Add the benches and other accessories

Now it’s time to add the benches and other accessories to your sauna.

Sauna kits usually come with bench brackets which make it easy to install the benches. You can also add a shelf for towels and other things.

Now install the door and the windows to complete the sauna. And that’s it! You have now built your very own outdoor sauna.


Outdoor saunas are a great way to add value to the house as well as enjoy the sauna experience in the comfort of your own home. Building an outdoor sauna is not as difficult as it may seem and with a sauna kit, it can be done in no time. Just follow the steps mentioned above and you will have your very own outdoor sauna in no time.