A full-size indoor CLT sauna finished in Natural Spruce inside and out, with a generous three-element layout, 8 mm tempered glass, concealed service paths, natural ventilation, and a clean architectural form designed for a refined private heat room.
Choose your interior timber finish.
Select a compatible Harvia heater, with final sizing and electrical requirements confirmed before installation.
Two 2.5m sauna LED strips with transformer and dimmer, installed in the prepared backrest or top-bench slot.
Original price was: $18,640.00.$17,792.00Current price is: $17,792.00.
Australia-wide shipping, carefully coordinated.
Coordinated support from order to handover.
Australian after-sales care when you need it.
Cross-Laminated Timber Construction
A solid 60 mm timber structure, not standard cladding.
Swift Fit saunas begins with Cross-Laminated Timber, or CLT: timber layers bonded in alternating directions so the panel becomes stronger and more stable than a single-direction board.
It gives the room a modern honesty: the timber is not just a surface treatment, but part of how the sauna is built, finished, and experienced.
Because the panels arrive prefabricated and precision-machined, the structure comes together efficiently on site while keeping the room solid, stable, and refined.
60 mm structural timber panel
Three 20 mm cross-laminated layers
Stable, rigid, and precision-machined
Sustainable, renewable timber construction
Designed for fast assembly with fewer parts
CLT Construction
The Large Indoor is built from prefabricated cross-laminated timber panels, not a light framed shell with decorative cladding. The CLT wall, roof, and bench elements form the sauna structure itself, giving the room a solid architectural feel while still allowing fast installation. The visible timber surfaces are part of this engineered panel system, with final finish details confirmed at order.
Finish · Natural Spruce Inside and Out
This standard build uses Natural Spruce for both the interior and exterior finish. The result is clean, warm and easy to integrate into a home, wellness room or indoor retreat: bright enough to feel open, natural enough to keep the sauna grounded.
Glass Frontage · 8 mm Tempered Glass
The Large Indoor includes a 650 mm glass door and two aluminium-framed glass window elements, all using 8 mm tempered glass. The frontage brings light into the sauna, opens the room visually, and gives the larger indoor format a sharper, more finished presence.
Bench Layout · Large 3x3 Format
With upper and lower bench elements sized for the larger cabin, the Large Indoor gives users more space to sit, stretch and move through the heat comfortably. It is the indoor model for those who want the OneEighty system at its most generous scale.
Ventilation · Integrated Air Path
Natural ventilation is built into the sauna through an inlet opening and an adjustable outlet covered with a grill. It keeps the room practical and serviceable while preserving the clean timber interior.
Service Provision · Wiring Paths Prepared
The structure includes cavities in the floor and wall joints for non-visible electrical wiring, with provision for lighting, temperature sensor, heater controller, door sensor and main module routing. Electrical components, heater, lighting and control unit are selected and installed separately by qualified professionals.
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 Large Indoor has external dimensions of 1920 x 1998 x 2060 mm and internal dimensions of 1850 x 1878 x 2000 mm.
This standard build uses Natural Spruce inside and out, giving the sauna a bright, clean timber finish suited to indoor spaces.
No. The TDS specifies an electrical stove of approximately 9 kW, but the heater is not included. Heater selection, power supply and control unit depend on the final specification.
No. The LED set is not included, but the sauna allows for lighting to be installed behind the backrest or under the bench with hidden cable provision.
The sauna uses 8 mm tempered glass, including a 650 mm glass door and two black aluminium framed glass window elements.
The TDS lists assembly as DIY or professional installation by 2 persons, approximately 4-6 hours.
This is the indoor Large model, designed for indoor installation.
Yes. It includes natural ventilation, with an inlet opening in the wall and an adjustable outlet opening covered with a grill.
The structure includes cavities in the floor and wall joints for non-visible electrical wiring. Electrical work should be completed by a qualified electrician.
The sauna is delivered flat-packed on one pallet, with the installation manual included.
CLT stands for cross-laminated timber. Instead of a standard framed sauna with decorative cladding, the OneEighty sauna body is made from engineered timber panels that form the wall, roof, and bench structure. The visible timber surfaces are part of that panel system, with final finish details confirmed at order.
Discuss sizing, materials, delivery, setup, and the sauna experience you want to create for your home.
Just your name and email, and your download begins. Your details stay with Sauna Ritual.
