How to Make a DIY Sauna in the UK

When it comes to a sauna you do not always have to get an expert in to make you one from scratch nor do you need to buy a premade plug and play option either. For those who like a project or have some time on their hands there is another option, making a DIY Sauna.

There are a number of ways to make a DIY Sauna, we will run through the options, including, making an inside DIY Sauna, converting an existing room into a Sauna, creating an outside sauna and converting an outhouse such as a shed into a useable outdoor Sauna.

How Much Does a DIY Sauna Cost to Make?

The final cost of a DIY sauna varies a lot depending on where the Sauna will be places. But converting a shed or an existing room into a infrared Sauna will cost around £300 for the Infrared heater, air vents and cabling needed.

DIY Sauna Project

Introduction to DIY Saunas

Building your own DIY sauna can be a rewarding and fulfilling project, providing a relaxing and therapeutic experience in the comfort of your own home. Here are some key points to consider when getting started:

Health benefits: Saunas have been associated with a range of health benefits, including stress relief, improved circulation, and muscle relaxation.
Cost savings: Building a DIY sauna can be more cost-effective than purchasing a pre-made unit.
Customization: Building your own sauna allows for greater customization in terms of size, materials, and features.
Personal satisfaction: Building your own DIY sauna can be a rewarding and enjoyable project, providing a sense of personal satisfaction.
Fun project: Building a DIY sauna can be a fun project to do with friends or family members.

Health Benefits of Saunas

Saunas are well-known for their health benefits, which include both physical and mental benefits. Here are some key health benefits of saunas:

Stress relief: Saunas can help to reduce stress levels and promote relaxation.
Improved circulation: The heat from the sauna can help to improve blood flow and circulation.
Detoxification: Saunas can help to eliminate toxins from the body through sweat.
Pain relief: Saunas have been shown to help alleviate muscle and joint pain.
Improved immune function: Saunas can help to strengthen the immune system, improving overall health.
Skin health: Saunas can help to improve skin health by opening pores and increasing blood flow.
Mental health: Saunas can promote feelings of well-being and may help to alleviate symptoms of depression and anxiety.

Tools and Materials Needed

When planning to build a DIY sauna, it is important to have the right tools and materials on hand. Here are some of the essential items you will need:

Tools:

Saw
Drill
Screwdriver
Hammer
Measuring tape
Level
Safety goggles
Gloves
Sandpaper
Paintbrushes

Materials:

Lumber
Insulation
Vapour barrier
Sauna heater
Sauna rocks
Sauna door
Lighting
Seating
Benches
Thermometer

Considerations for upcycling and using recycled or new wood:

Check local salvage yards or online marketplaces for recycled materials.
Consider using pallets or other reclaimed wood for the sauna frame.
Look for sustainably sourced or FSC certified new lumber.
Use eco-friendly stains and finishes.

By using recycled or reclaimed materials, you can create a unique and eco-friendly DIY sauna while also reducing waste and saving money. Just be sure to choose materials that are safe and appropriate for use in a sauna.

Choosing the Right Location

When building a DIY sauna, choosing the right location is crucial for both safety and comfort. Here are some factors to consider when selecting the location for your DIY sauna:

Space: Choose a location that has enough space for your sauna and any necessary equipment or accessories.
Ventilation: Make sure the location has adequate ventilation to allow for fresh air flow and to prevent mold or mildew.
Electricity: Choose a location near an electrical outlet to power your sauna heater and any other electrical components.
Flooring: Consider the flooring in the location, as it should be able to withstand high temperatures and moisture.
Privacy: Choose a location that provides privacy, as saunas are often used in a state of undress.
Accessibility: Choose a location that is easy to access and does not require navigating stairs or other obstacles.

By carefully selecting the right location, you can create a safe and comfortable space to enjoy your DIY sauna for years to come.

Planning and Designing Your Sauna

When planning and designing your DIY sauna, there are a few key factors to consider. Here are some tips to get you started:

Size: Determine how many people you want your sauna to accommodate and plan the size accordingly.
Layout: Consider the placement of the benches, the heater, and the door for optimal use.
Materials: Choose materials that can withstand high temperatures and moisture, such as cedar, hemlock, or spruce.
Lighting: Consider lighting options that are safe for use in a high-temperature and high-moisture environment.
Ventilation: Make sure your design includes proper ventilation to prevent mold and mildew growth.

You can find sauna designs online or in books on DIY sauna building. Alternatively, you can design your sauna from scratch, taking into account your specific needs and preferences.

Consider consulting with a professional if you are unsure about the design or building process. They can offer valuable advice and ensure that your sauna is safe and functional.

Building the Sauna Frame

Building the sauna frame is a critical step in creating a sturdy and functional DIY sauna. Here is a step-by-step guide to help you build your sauna frame:

Measure and mark out the dimensions of your sauna on the floor.
Build the frame using 2×4 or 2×6 lumber. Make sure to secure the frame to the floor with screws or nails.
Add cross bracing to the frame for extra stability.
Install the door frame, making sure it is level and plumb.
Install any necessary wiring or electrical components for the sauna heater.
Install the insulation, making sure to cover all walls, ceiling, and floor.
Install the vapor barrier over the insulation to prevent moisture buildup.
Install the interior wall paneling or boards.
Install the benches, making sure to secure them to the walls and framing.

By following these steps, you can create a solid and functional DIY sauna frame that will be ready for the next stage of construction.

Installing the Insulation

Installing insulation is a critical step in building a DIY sauna, as it helps maintain the high temperatures necessary for a successful sauna experience. Here are some tips for installing insulation in your DIY sauna:

Use mineral wool or fiberglass insulation, as these materials can withstand high temperatures.
Make sure to cover all walls, ceiling, and floor with insulation.
Use a staple gun to secure the insulation in place.
Wear protective gear, including gloves and a mask, when working with insulation.
Leave some space between the insulation and the interior wall paneling to allow for air circulation.
Install a vapor barrier over the insulation to prevent moisture buildup.

By following these tips, you can ensure that your DIY sauna is well-insulated and ready for use.

Installing the Vapour Barrier

Installing a vapor barrier is a crucial step in building a DIY sauna, as it helps prevent moisture from getting trapped in the insulation and walls. Here are some tips for installing a vapor barrier in your DIY sauna:

Use a high-quality, waterproof barrier material such as polyethylene sheeting.
Staple or glue the barrier to the studs and joists.
Overlap the seams by at least six inches and seal them with tape or adhesive.
Cut holes for any electrical outlets, vents, or light fixtures.
Install the interior wall paneling or boards over the vapor barrier.

By following these tips, you can ensure that your DIY sauna is well-protected from moisture and ready for use.

Choosing and Installing the Sauna Heater

Choosing and installing the sauna heater is a critical step in building a DIY sauna, as it directly impacts the sauna’s temperature and performance. Here are some tips for choosing and installing a sauna heater:

Choose a heater that is appropriately sized for your sauna’s dimensions.
Consider the type of heater – electric or wood-fired.
Follow the manufacturer’s instructions for installation, including proper ventilation and clearances.
Install the heater on a sturdy, heat-resistant base.
Connect the heater to the electrical supply or chimney, as appropriate.
Test the heater and adjust the temperature to the desired level.

By following these tips, you can ensure that your DIY sauna is equipped with a safe and effective heater.

Adding Seating and Benches

Adding seating and benches is an important aspect of creating a comfortable and functional DIY sauna. Here are some tips for adding seating and benches to your sauna:

Use materials that are heat-resistant and durable, such as cedar or teak.
Position the seating and benches in a way that maximizes space and allows for easy movement.
Consider the height of the seating and benches, ensuring they are at a comfortable level for users.
Add backrests or cushions for additional comfort.
Leave adequate space between the seating and the walls to ensure proper air circulation.
Install hooks or shelves for towels and other accessories.

By following these tips, you can create a sauna that is not only functional but also comfortable and inviting.

Choosing and Installing the Sauna Door

Choosing and installing the sauna door is a crucial step in building a DIY sauna. Here are some tips for selecting and installing the door:

Choose a door made of heat-resistant material, such as glass or wood.
Ensure the door fits snugly and creates an airtight seal.
Install the door with hinges that can support its weight and withstand high temperatures.
Use weather stripping to seal any gaps between the door and the frame.
Consider adding a window to the door for additional light and ventilation.

By following these tips, you can ensure that your sauna door is not only functional but also safe and durable.

Adding Lighting and Accessories

Adding lighting and accessories to your DIY sauna can enhance the overall experience and make it more enjoyable. Here are some tips for adding lighting and accessories:

Choose lighting that is specifically designed for use in saunas to ensure safety.
Install lighting in a way that creates a relaxing and calming atmosphere.
Consider adding a sound system for music or guided meditation.
Install a thermometer and hygrometer to monitor the temperature and humidity levels.
Add essential oils or aromatherapy products to enhance the sauna experience.
Install a timer to regulate the amount of time spent in the sauna.

By following these tips, you can create a sauna that is not only functional but also personalized and relaxing.

Safety Precautions

When building a DIY sauna, safety should always be a top priority. Here are some safety precautions to keep in mind:

Use heat-resistant and non-toxic materials to avoid any potential health hazards.
Install a carbon monoxide detector to monitor the air quality.
Never leave the sauna unattended when it is in use.
Limit sauna sessions to no more than 20 minutes at a time to avoid overheating.
Keep a bucket of water or a spray bottle on hand to cool down if necessary.
Make sure the sauna is properly ventilated to avoid suffocation or heat stroke.
Avoid drinking alcohol or taking medications that can impair your ability to regulate body temperature.

By following these safety precautions, you can ensure that your DIY sauna is not only enjoyable but also safe and healthy.

Maintenance and Cleaning Tips

Maintaining and cleaning your DIY sauna is important to ensure its longevity and performance. Here are some tips to keep in mind:

Regularly wipe down the benches and walls with a mild detergent and water.
Clean the sauna heater and stones with a soft brush to remove any buildup of debris.
Keep the sauna dry and well-ventilated to prevent mold and mildew growth.
Check the sauna heater and electrical components regularly for any signs of wear or damage.
Replace any worn or damaged parts as needed to ensure safety and optimal performance.

By following these maintenance and cleaning tips, you can ensure that your DIY sauna is always in top condition and ready for use.

Conclusion and Final Thoughts.

Congratulations, you have successfully completed building your DIY sauna! Now you can enjoy the many benefits of this wonderful addition to your home. Not only is it a great way to relax and unwind, but it also offers numerous health benefits.

Building a DIY sauna is a challenging but rewarding project that requires careful planning, hard work, and attention to detail. By following the steps outlined in this guide, you can build a high-quality sauna that will provide years of enjoyment.

Remember to always follow safety precautions when using your sauna, and to keep up with regular maintenance and cleaning to ensure its longevity and optimal performance.

We hope this guide has been helpful in your DIY sauna project. Building a sauna is a great way to improve your quality of life and add value to your home. So, take a deep breath, relax, and enjoy the many benefits of your newly-built sauna!