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Build your own sauna

Do you dream of your own sauna? With our sauna elements and building materials you can tailor a sauna that fits perfectly into your home. Choose from sauna wood, benches, doors, heat sources and ventilation to give you an authentic sauna experience. Create your own private wellness room with quality materials for DIY saunas.
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Only the best wood
Our sauna wood is aspen and red alder in class A. Only these types of wood meet our strict quality requirements for close-grained grain and a small number of knots, so they can withstand high temperatures and large temperature fluctuations in sauna environments.

Pine and spruce become unbearably hot and can exude resin. The wood does not have the same dirt-repellent surface as aspen – and risks splitting due to the wood's many knots and coarser structure.

Heat treating wood in special ovens is an environmentally friendly preservation method that leaves enough moisture in the wood to give it fewer internal stresses and no drying damage. It is also more stable under rapidly changing temperatures.

Aspen, untreated
Aspen has a beautiful light color and a fine knot-free structure. Aspen does not feel hot because it does not absorb heat very easily.

Aspen, heat-treated (thermoasp)
Treated aspen is both heat- and dirt-repellent, making it ideal for sauna benches and backrests. If you use it for the wall, it is also for its deep, beautiful and durable reddish-brown color.

Redwood
A cheaper and less durable alternative to aspen. This wood also has a nice texture and the color is yellowish or reddish – which changes to a more reddish brown over time. Brown spots occur naturally in the wood of the tree.

To help you get started, we have made this videoshowing how to build your own sauna. 

Sauna clothing

Heat-treated wood
For thousands of years, people have been heat-treating wood to make it more durable and stronger. The latest techniques allow heat treatment in large-scale production. In advanced ovens, the wood is heated to 180 °C under 9 bar pressure. This way, it takes less time and lower temperatures — less energy — to treat the wood, and the treatment is chemical-free.

Heat-treated aspen has an outdoor lifespan of more than 25 years, while heat-treated spruce or pine, for example, has a lifespan of between 15 and 25 years, according to studies conducted by the University of Freiburg (Germany).

Aspen trees are birch-like trees that grow in the Northern Hemisphere.

Sauna benches

Build your own sauna – tailor your own wellness experience

Building your own sauna is a dream for many who want a personal wellness space for relaxation and well-being. With the right materials and a well-thought-out plan, you can create a sauna that perfectly suits your needs – whether it is to be placed in your home, summer house or garden.

A build-your-own sauna gives you full control over the design, materials and features. You can choose the type of wood that best suits your style, tailor the size of the sauna and select exactly the sauna elements that ensure the ultimate comfort.

Benefits of building your own sauna

  • Flexibility in design – Choose size, materials and placement according to your wishes.
  • Quality materials – Ensures a durable and functional sauna for many years.
  • Personalisation – Create a sauna with the features you dream of, such as LED lighting, backrests and benches.
  • Economical – By building yourself you can achieve high quality at a lower price than pre-assembled models.

When you build your own sauna, you can also adapt it to the dimensions of the room and ensure that it fits your needs perfectly.

The most important elements of a sauna

To create a functional and durable sauna, you need to choose the right materials and elements.

  • Sauna wood – The most important component, as it affects both aesthetics and heating properties.
  • Sauna benches – Sauna benches ensure comfort during your stay.
  • Sauna doors – Choose a heat-resistant door made of glass or wood.
  • Sauna heat source – An electric stove or a traditional wood-fired sauna stove.
  • Sauna ventilation – Ensures fresh air and correct heat distribution.
  • Sauna insulation and foil – Ensures optimal heat efficiency.

By choosing high-quality materials, you can ensure that your sauna lasts for many years and provides the best experience.

Choice of materials – indoor cladding

Sauna wood is an essential factor as it affects both the durability, appearance and thermal properties of the sauna. The most popular types of wood include:

  • Aspen – Aspen has a beautiful light color and a fine, knot-free structure. Aspen does not feel hot because it does not absorb heat very easily.
  • Heat-treated aspen – Thermoaspen is both heat and dirt-repellent, and thus ideal for sauna benches and backrests. If you use it for the wall, it is also for its deep, beautiful and durable reddish-brown color.
  • Redwood – A classic and economical solution that provides a traditional sauna experience. The wood has a beautiful structure and the color is yellowish or reddish – which changes to a more reddish brown over time. Brown spots occur naturally in the wood.

The sauna's heat source – electric vs. wood-fired stove

The choice of sauna heat source depends on your preferences and options.

  • Electric sauna heater – Easy to install, quick heating and requires minimal maintenance.
  • Wood-fired sauna stove – Provides an authentic sauna experience with the scent of wood and even heat.

How to properly install and insulate your sauna

To achieve optimal thermal insulation and minimize energy consumption, the sauna must be built correctly.

  • Insulating walls and ceiling – Use specially designed sauna foil and mineral wool to retain heat.
  • Installing sauna cladding – The cladding wood is installed with spaces between the foil and the wood cladding. This allows moisture to be drained away.
  • Setting up benches and backrests – Make sure the benches are placed at different heights for maximum comfort.
  • Installing a heat source – Follow the manufacturer's instructions for proper placement and ventilation.

Correct installation ensures a safe and comfortable sauna experience.

Sauna accessories and extra details

To create the perfect sauna experience, you can add a number of functional and comfortable details:

  • Sauna backrest – Provides support and increased comfort during sauna visits.
  • Sauna lighting – LED lights or dimmed lighting create a relaxing atmosphere.
  • Sound – Built-in speaker system for music or nature sounds.
  • Sauna mats – Ensure a soft and comfortable surface to stand on.

These details can make a big difference and provide a more luxurious sauna experience.

Maintaining and cleaning your sauna

To extend the life of your sauna, it is important to maintain it correctly:

  • Air out the sauna after use – Avoid moisture buildup and mold.
  • Wipe surfaces – Use a damp cloth to remove sweat and moisture from benches and walls.
  • Clean the sauna door – Glass doors should be cleaned with a mild glass cleaner to avoid limescale deposits.
  • Use a special cleaner for saunas – Gentle products ensure that the wood remains in good condition.

With regular maintenance, your sauna can stay beautiful and functional for many years.

How to choose the right materials and order your sauna

Building a sauna requires the right materials and a clear plan. Follow these steps to ensure the best solution:

  • Choose size and location – Should the sauna be indoors or outdoors?
  • Choose the right type of wood – Consider durability and aesthetics.
  • Decide on a heat source – Electric or wood-fired sauna heater?
  • Add extra features – Do you want lighting, sound effects or other details?
  • Order quality materials – Ensures a long-lasting sauna with optimal heat distribution.

Do you need guidance? Our experts are ready to help you find the perfect materials for your DIY sauna.

On this page you will find everything worth knowing about building your own sauna.