A medium-format indoor CLT sauna finished in Natural Spruce inside and out, with a clean 2×3 element layout, 8 mm tempered glass, concealed wiring provision, natural ventilation, and a refined architectural presence for private indoor heat rooms.
Select a compatible Harvia heater, with final sizing and electrical requirements confirmed before installation.
Add a two-strip sauna LED lighting set for concealed installation.
Original price was: $9,459.69.$8,432.37Current price is: $8,432.37.
Australia-wide shipping, carefully coordinated.
Coordinated support from order to handover.
Australian after-sales care when you need it.
CLT Structure · Cross-Laminated Timber
The Medium Indoor is built from prefabricated cross-laminated timber elements, CNC-machined for accurate joints, openings, and assembly. The structure uses layered timber construction for strength, dimensional stability, and a more substantial feel than a light sauna kit.
Finish · Natural Spruce Inside and Out
Our standard Medium Indoor configuration uses Natural Spruce for both the interior and exterior finish. The result is bright, calm, and architectural: a clean timber volume that feels soft in the room while keeping the sauna honest, tactile, and intentionally simple.
Glass Frontage · 8 mm Tempered Glass
The glass facade uses 8 mm tempered glass, with a 650 mm glass door and two window elements. It brings openness to the indoor sauna without losing the sense of enclosure, giving the timber room a clean architectural front.
Medium Format · 2x3 Element Layout
At 1300 x 1998 x 2060 mm externally, the Medium Indoor gives more room than the small format while staying compact enough for considered indoor planning. The internal dimensions are 1230 x 1878 x 2000 mm, giving the room a practical, composed heat-room proportion.
Ventilation & Wiring Provision · Built Into the Frame
Natural ventilation is integrated through wall openings, with an adjustable outlet covered by a grill. Cavities in the wall and floor joints provide provision for non-visible electrical wiring, helping the finished sauna stay clean once the selected heater, controller, lighting, and sensors are installed.
Bench & Interior Elements · Simple, Durable, Direct
The Medium Indoor includes CLT bench elements with an upper bench, lower bench, and bench support. The layout is straightforward and purposeful, giving the room the clean functional posture expected from a serious private sauna.
Each sauna includes its standard bench configuration, selected to suit the model, room size, and heat layout. Alternative bench styles may be available depending on the sauna range, model, and configuration, with final layout, lighting impact, and pricing confirmed before order.
Available options are confirmed during your private consultation. Some layouts may require additional timber, adjusted lighting, or model-specific changes.
Across wellness research and performance culture, sauna bathing continues to be studied for its role in recovery, circulation, and ritual.
You get used to everything. 88 degrees in the sauna used to feel way hotter. Now it almost feels normal. I’m trying to get in here 4 times a week. The benefits are tangible. One of the wildest feelings you can experience is when you do 20 minutes in a hot sauna and then 2 in a cold plunge, and then back to the sauna.
The latest data point to: i) 57 minutes of hot sauna per week ii) 11 minutes of cold exposure per week as reliable thresholds to derive major benefits on metabolism, insulin and growth hormone pathways. (Can be done same or separate days) (Ideal temp: uncomfortable but safe)
I have been hitting up my home sauna 5 days a week and every time I feel great afterward. Regular sauna use has been associated with up to a 40% reduced risk of pneumonia and increases white blood cell numbers and heat shock proteins. Thirty minutes at 73°C boosts hsp70 by 50% in healthy people.
Owners, athletes and architects on the rooms they actually use — in courtyards, on rooftops and beside training pools across Australia.
The OneEighty Medium Indoor Sauna is a prefabricated CLT indoor sauna kit designed for private indoor use. It combines Natural Spruce timber surfaces, tempered glass, natural ventilation, and a clean 2x3 element format.
The external dimensions are 1300 x 1998 x 2060 mm. The internal dimensions are 1230 x 1878 x 2000 mm.
Our standard build uses Natural Spruce inside and out, giving the sauna a bright, calm timber character suitable for indoor wellness spaces.
Yes. The Medium Indoor uses prefabricated cross-laminated timber elements, CNC-machined for precise joints, openings, and assembly.
The sauna includes a 650 mm glass door made from 8 mm tempered glass, plus two black aluminium framed window elements with 8 mm tempered glass.
No. The LED set is not included, but the sauna is designed with provision for hidden cable installation.
No. The technical sheet specifies an electrical stove of approximately 6 kW, not included. Final heater, power supply, and control unit requirements depend on the selected heater.
Yes. The sauna includes natural ventilation, with an inlet opening and an adjustable outlet opening covered with a grill.
The CLT system includes cavities in the wall and floor joints that allow provision for non-visible electrical wiring once the selected heater, controller, lighting, and sensors are installed.
The technical sheet lists assembly as DIY or professional, 2 persons, approximately 2-4 hours, assuming the site is prepared and all required services are ready.
Discuss sizing, materials, delivery, setup, and the sauna experience you want to create for your home.
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