45 Sauna Dimensions, Sizes & Layouts for Better Design

A sauna is a specially installed heated room for relaxing, particularly after physical exercise. Enjoying in the hot room will help your body steams away excess water and gets rid of toxins. You can find numerous sauna types, but they are lined with wood planks or glass in most cases. There are options to place it inside your home, or you can pick out an outdoor model housed in a separated building.

In any case, you should calculate the best sauna sizes you need. The precise dimensions will primarily depend on available space and the number of people who will use it simultaneously. Besides picking out standard sizes, you can also opt for a unique model that fits your style and home capacity.

Sauna Dimensions, Sizes & Layouts for Better Design

How to Pick Out the Right Sauna Size?

Sauna size

Once you have decided to install a sauna, you should find the right place for it first. Most residential saunas are 7 feet (2.1 m) high and measure 6 by 6 feet (1.8 x 1.8 m). That size allows you to install both top and bottom benches with enough space for the heater.

You can ask for some adjustments if you need only one but longer bench for comfortable lying down. In most cases, variations less than 20 inches (0.5 m) won’t significantly affect the final price. However, you should count on a larger heater size than standard.

The best option is to pick out sauna size based on the number of people who will use it simultaneously. Remember that a larger sauna is more comfortable, but it will be more expensive since it requires more fuel. You have a few models at your disposal, including:

  • Single tier
  • Double tier
  • Double tier 5-sided
  • Double tier with return
  • Double tier 5-sided with return
  • Double tier L shaped
  • Double tier U shaped

Number of people

The number of people who will use your new sauna at once is a critical factor you should take care of. Firstly, it is necessary to determine space according to the number of people and add about 50 inches (1.3 m) distance from the heater.

Secondly, you should be precise whether you need space for lying down or sitting. Finally, you should think about leaving room for an outward opening of the door without blocking anything.

Sauna height

The height of each particular model will directly affect the result you want to get in your sauna. As you know, hot air always rises toward the ceiling. So, a too high sauna will require a bigger heater, or the existing one needs to work harder. As a result, you will get a higher electricity bill to keep desired temperature levels.

Another problem is ​underpowered models, especially those working on gas. They may activate an emergency switch, so you will need to reset your sauna in the middle of relaxing time. Therefore, you should always look for a sauna model with an ideal 7 feet (2.1 m) high ceiling for maximum pleasure at an affordable price.

Sauna area

You should be aware that you need to think of two dimensions when calculating sauna size:

  • Inner dimension

The rule of thumb is to choose a model with at least one side long, an ideal 81 3/4 inches (2 m). That length will allow you to comfortably lay down and spend a relaxing time without bending the legs or awkward body positions.

On the other hand, you can plan a smaller model if you want to use it in a sitting position. When you need a spacy model for a family or gathering with friends, you should choose models for five to ten people.

  • External dimension

It may seem to you that there is no significant difference between inner and external sauna dimensions. However, miscalculation will potentially complicate your life. Unlike inner sizes adjusted to your comfort, external sizes should fit where you want to install a sauna.

In other words, you should know that a standard sauna wall thickness is 3 inches (8 cm). Plus, it is necessary to add wall spacing of 6 cm when you want to connect a sauna to a room wall.

Keep in mind that all given dimensions are for inner sauna size. So, you need to do some math to get the required external measures.

Indoor Traditional Saunas Dimensions

The hook and pin panel saunas

The hook and pin panel is the most popular saunas’ design nowadays. You will need only an hour to assembly this 80 inches (2 m) high construction type available in five sizes.

  • 4 by 4 feet (1.2 x 1.2 m)
  • 4 by 6 feet (1.2 x 1.8 m)
  • 5 by 5 feet (1.5 x 1.5 m) corner
  • 5 by 7 feet (1.5 x 2.1 m)
  • 6 by 6 feet (1.8 x 1.8 m) corner

Glassdoor saunas

Saunas with frameless glass doors, two side panels made of glass, and the top panel is a luxury option for four people. You can find two 84 inches (2.1 m) high options available:

  • 72 by 84 inches (1.8 x 2.1 m)
  • 77 by 84 inches (1.9 x 2.1 m) with ceiling overhang

Glass saunas

The glass-to-glass corner saunas high 84 inches (2.1 m) with LED lights and luxurious backrests are ideal for five people. The standard dimensions are:

  • 84 by 84 inches (2.1 x 2.1 m)
  • 72 by 84 inches (1.8 x 2.1 m) with inside and out accented wood features

Saunas with curved glass front

It is an excellent 84 inches (2.1 m) high model, which you can install at a mid-wall to get a panoramic view. You can use it for two to ten people thanks to its dimensions:

  • 72 by 84 inches (1.8 x 2.1 m)

Saunas with wave-like glass front

Comfortable saunas with a wave-like curved glass front design are a classy option for four people. This 84 inches (2.1 m) high model is available in one size:

  • 72×72 inches (1.8 x 1.8 m)

Saunas with a broad angled front wall

An elegant broad angled front wall provides a more expansive space and fits in the room corner. You can find an 84 inches (2.1 m) high model for five persons with standard dimensions of:

  • 84 by 84 inches (2.1 x 2.1 m)

Saunas made of wood and glass

This trendy model for four people combines wood and bronze-tinted glass. Doors are made of glass, and saunas have four sidelight windows, providing a panoramic view from inside. You can pick out two 84 inches (2.1 m) high models for four people in two sizes, including:

  • 72 by 81 3/4 inches (1.8 x 2 m)
  • 82 7/8 by 93 inches (2.1 x 2.3 m) with ceiling overhang

Saunas with Abachi white wood

Nowadays, you can enjoy luxurious, cozy, well-ventilated, light-colored saunas made of Abachi white wood. There are nine types available for two to ten people.

  • 4 by 4 feet (1.2 x 1.2 m)
  • 4 by 6 feet (1.2 x 1.8 m)
  • 5 by 6 feet (1.5 x 1.8 m)
  • 6 by 6 feet (1.8 x 1.8 m)
  • 6 by 6 feet (1.8 x 1.8 m) corner
  • 6 by 8 feet (1.8 x 2.4 m)
  • 7 by 7 feet (2.1 x 2.1 m) corner
  • 8 by 8 feet (2.4 x 2.4 m)
  • 8 by 12 feet (2.4 x 3.6 m)

Outdoor Traditional Saunas Dimensions

You can find the traditional outdoor sauna in any size and arrangement for absolute enjoyment. The chosen dimensions should depend on your needs and the number of people that will use space simultaneously. The best option for two to five people is:

  • 4 by 5 feet (1.2 x 1.5 m)
  • 4 by 6 feet (1.2 x 1.8 m)
  • 5 by 6 feet (1.5 x 1.8 m)
  • 5 by 7 feet (1.5 x 2.1 m)

If you are a picky and busy person looking for a unique design, you should choose one of the models you can install in half an hour. The perfect options for two to ten persons you can place in the backyard or your deck are available in the following sizes:

  • 4 by 4 feet (1.2 x 1.2 m)
  • 4 by 6 feet (1.2 x 1.8 m)
  • 5 by 6 feet (1.5 x 1.8 m)
  • 6 by 6 feet (1.8 x 1.8 m)
  • 6 by 6 feet (1.8 x 1.8 m) corner
  • 6 by 8 feet (1.8 x 2.4 m)
  • 7 by 7 feet (2.1 x 2.1 m) corner
  • 8 by 8 feet (2.4 x 2.4 m)
  • 8 by 12 feet (2.4 x 3.6 m)

Indoor-Only Infrared Saunas Dimensions

If you prefer infrared saunas, you can buy an indoor-only model that fits your home best. These saunas are always 76 3/8 inches (1.9 m) high and come in a few sizes, depending on the people number who will use them at the same time:

  • 36 X 36 inches (0.9 x 0.9 m) for one person
  • 40 x 48 inches (1 x 1.2 m) for two people
  • 44 x 64 inches (1.1 x 1.6 m) for three people
  • 44 x 72 inches (1.1 x 1.8 m) for three people
  • 52 x 52 inches (1.3 x 1.3 m) for three people
  • 56 x 72 inches (1.4 x 1.8 m) for four people
  • 60 x 60 inches (1.5 x 1.5 m) for four people


You should choose a sauna size, depending on your needs and family members who plan to enjoy it. Always pick out an 80 to 84 inches (2 – 2.1 m) high model sizable enough for an adequate number of people. The goal is to allow comfortable enjoyment without feeling overwhelmed.

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Sauna Dimensions, Sizes & Layouts