DOON SAUNAS
Outdoor saunas, designed in Scotland and built for life outside.
Engineered for private homes, retreats, and commercial settings.
ARDNA | SIOO:X LARCH
A quieter approach to design…
Modern sauna culture is often focused on optimisation. Hotter sessions, colder plunges, longer holds, more data. Somewhere along the way, the simple purpose of heat was lost.
At Doon, we design saunas to remove the noise. No gimmicks, no screens, no systems to manage. Just calm, solid structures that hold heat, shelter you from the weather, and create space to slow down.
Core Sauna Range
After extensive design and development, we’ve curated a small collection of exceptionally well-made saunas. Each is designed as a permanent structure, built for consistent heat performance, durability and daily use.
ARDNA | SIOO:X LARCH
Performance
The secrets to a good sauna
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A sauna is a demanding environment. High heat and humidity quickly expose weaknesses in materials, fixings, and construction methods.
For that reason, our outdoor saunas are designed using clean, stable materials chosen specifically for high-temperature spaces. We avoid glues, resins, and synthetic binders inside the sauna that could degrade or off-gas over time.
This approach supports long-term performance and helps ensure the air you’re breathing inside the sauna remains clean.
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Timber choice has a direct impact on comfort and durability inside a sauna.
We favour thermally modified timbers such as thermo aspen for internal linings and benches. These timbers contain minimal natural resin, remain stable in heat and humidity, and stay comfortable to touch at high temperatures. Their stability reduces movement, splitting, and long-term maintenance.
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Insulation plays a key role in heat performance and longevity, supporting faster heat-up times, more even temperatures, and reduced energy use.
We use 100% sheep’s wool without polymer binders. This provides effective thermal performance while avoiding synthetic binders that can degrade or emit odours under sustained heat.
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Sauna floors must be safe, durable, and easy to maintain.
Doon saunas use hard-wearing porcelain floor tiles with appropriate slip resistance, paired with stainless steel drainage. This combination provides good grip underfoot, straightforward cleaning, and long-term durability in wet, high-use environments.
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Discreet downlighting is concealed beneath the benches, casting a soft, indirect glow across the floor and lower walls. This approach avoids harsh overhead light, instead creating a quieter and more composed interior atmosphere.
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Large-format windows create a strong visual connection to the surrounding landscape, bringing in natural light and a sense of openness while maintaining a calm, enclosed interior. Carefully specified glazing ensures thermal performance and durability, allowing the sauna to retain heat efficiently while framing clear, uninterrupted views.
Material Selection
Saunas built exclusively from non-toxic materials, ensuring a clean, safe environment at high temperatures.
Commercial
Our commercial work applies the same design discipline found across our standalone saunas.
We collaborate with hotels, estates, retreats, and wellness operators to deliver saunas and cabins designed for long-term, high-frequency use. Each project is shaped around real operational requirements, including capacity, circulation, maintenance, and durability.
The result is infrastructure that performs reliably over time, supports your operation, and delivers a consistently high-quality guest experience.
Bespoke
Our bespoke service extends the same design language and construction standards found across our collection.
It is intended for projects that fall outside our standard formats, whether due to site conditions, scale, or brief. We work closely with clients to shape form, layout, and material choices to suit each setting.
Every element is carefully resolved, ensuring each structure feels calm, deliberate, and appropriate to its environment.
MARA | SIOO:X LARCH
Sauna Fit-Outs
We design and deliver fully bespoke sauna fit-outs for hotels, gyms, private clubs, spas, and residential developments.
From concept and technical detailing through to manufacture and installation, each project is built around your space, brand, and operational requirements. Every fit-out is designed for durability, compliance, and daily commercial use.
The same care, materials, and precision found in our standalone structures are applied throughout.
MARA | ALDER LINING
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![Close-up of a wooden house exterior with vertical wooden planks and a large window, showing rocks and construction equipment inside.]()
SIOO:X Scottish Larch
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![A white and brown horse leaning on a person in a gray jacket outside near a mountain.]()
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![Close-up of a black grill with the brand logo 'iKI' on a metal plate, showing the grate and some ashes inside.]()
Iki Wood Fired
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![A wooden wall with three metal hooks, one holding a beige towel and the other a pair of blue denim jeans with a striped belt.]()
Marine Stainless fixings
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![A modern wood-burning stove with visible flames, located indoors next to a window with a view of trees outside. The stove is made of metal and has a cylindrical shape, with a circular front door that is open, revealing the fire inside. The stove has a tall, chimney pipe extending upward.]()
Mara 6 Interior
