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OneEighty Core Outdoor Sauna

A prefabricated cross-laminated timber outdoor sauna supplied unfinished, so the timber is yours to paint, stain or oil. The OneEighty Core pairs 60 mm spruce CLT walls, floor, roof and benches with a pine framed glass door and two window elements, giving a medium footprint cabin at the entry point of the range, assembled by two people in an afternoon.

5.0
★★★★★
Based on 5 verified buyers
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Key Features
  • Footprint 1408 x 2016 x 2150 mm external; 1270 x 1860 x 1920 mm internal
  • Assembly time Approximately 4 to 6 hours with two people, depending on site preparation and experience
  • Weight Net approx. 670 kg; approx. 820 kg with tare
  • Exterior finish Supplied unfinished in spruce CLT, ready for the paint, stain or oil of your choice
  • Structure 60 mm three-ply spruce CLT wall, floor, roof and bench elements
  • Glass and facade 8 mm tempered grey glass, pine framed door with two CLT framed window elements
  • Heater Compatible heater selected as an add-on; final heater sizing and installation requirements confirmed before installation.
  • Door Reversible, configured for left or right hand opening at assembly
3 options

Select a compatible Harvia heater, with final sizing and electrical requirements confirmed before installation.

No option is included as standard for this group.
1 option

Two 2.5m sauna LED strips with transformer and dimmer, installed in the prepared slot under the upper bench.

No option is included as standard for this group.

Original price was: $11,800.00.Current price is: $10,800.00.

AUD
Inc. GST · Free metro delivery · Regional by quote
Fast Delivery

Australia-wide shipping, carefully coordinated.

White-Glove Care

Coordinated support from order to handover.

Local Support

Australian after-sales care when you need it.

Model OneEighty Core Outdoor Sauna
Product type Prefabricated cross-laminated timber outdoor sauna kit
Manufacturer CLTEST OÜ
Use Outdoor installation: garden, terrace, pool area, etc.
External assembled dimensions D x W x H 1408 x 2016 x 2150 mm at the base. The roof overhangs slightly wider, to 2052 mm.
Internal dimensions D x W x H 1270 x 1860 x 1920 mm
Packed size H x W x L 1000 x 1000 x 2050 mm
Weight Net approx. 670 kg; approx. 820 kg with tare
Assembly DIY or professional, two people, approximately 4 to 6 hours
Standard exterior finish Supplied unfinished. Non-visual grade smooth spruce CLT, finished on site by the owner
CLT wall elements 60 x 695 x 1980 mm L-shape, 4 elements; 60 x 700 x 1980 mm T-shape, 3 elements
CLT floor elements 60 x 725 x 1980 mm, 2 elements
CLT roof elements 60 x 725 x 1980 mm, 2 elements
Upper bench 60 x 550 x 1855 mm, 1 element, fixed at 1070 mm
Lower bench 60 x 350 x 1300 mm, 1 element, movable
Bench supports 60 x 350 x 310 mm, 2 elements
Element weights Wall elements approx. 42 kg, floor and roof elements approx. 44 kg, window elements approx. 36 kg, door approx. 27 kg, benches 14 to 31 kg
Glass door Fingerjointed pine frame, 8 mm tempered grey glass, 70 x 590 x 1890 mm, Abloy hinges, wooden handle, EPDM seals, reversible
Window elements Spruce CLT frame, 8 mm tempered grey glass, 60 x 695 x 1980 mm, 2 elements
Glazing Single glazed throughout, 8 mm tempered grey glass. Double glazing is not offered on the Core.
Interior wall and ceiling Non-visual grade smooth spruce CLT, unfinished
Benches 60 mm spruce CLT, unfinished
Roof cover EPDM membrane, adhesives and sheet metal drip edge included
Roof verge Wooden slats included
Mouldings Spruce corner mouldings for the exterior, pine door moulding for the interior
Foundation 45 x 45 mm S4S bottom slats included
Drainage Three machined openings 30 x 200 mm in the floor
Ventilation Wall inlet with grill and adjustable wall outlet with grill
Heating Electric or wood burning stove approx. 7 kW, not included
Control unit Control requirements depend on the selected heater option; not included
Cabling Surface mounted and exposed. The heater control unit can be installed with concealed cables.
Fasteners Stainless steel screws included
Delivery Flat-pack on 1 pallet, installation manual included
Electrical note All electrical work must be completed by a certified electrician.
  • OneEighty Core outdoor sauna structure
  • Factory-machined spruce CLT wall elements
  • Factory-machined spruce CLT floor elements
  • Factory-machined spruce CLT roof elements
  • CLT upper bench element
  • Movable spruce lower bench element
  • Bench support elements
  • Pine framed glass door with 8 mm tempered grey glass
  • Two CLT framed window elements with 8 mm tempered grey glass
  • Abloy hinges and wooden handle
  • EPDM seals for the door
  • EPDM roof membrane
  • Roof adhesives
  • Sheet metal drip edge
  • Wooden roof verge slats
  • Spruce corner mouldings for the exterior
  • Pine door moulding for the interior
  • 45 x 45 mm S4S foundation slats
  • Two ventilation covers with grills
  • Stainless steel screws
  • Installation manual
  • Flat-pack delivery on 1 pallet
5.0
★★★★★
Based on 5 verified buyers
5★
5
4★
0
3★
0
2★
0
1★
0
Patrice Williams Verified buyer

We recently purchased from them and couldn’t be happier. The team were an absolute pleasure to deal with friendly, professional, and incredibly patient while we took the time to make our decision. They answered every question thoroughly and made the whole process easy and stress-free. Highly recommend the team to anyone considering a sauna exceptional service from start to finish.

Nic Betts Verified buyer

The team was a great help when buying our sauna. Great communication and a Great product. Thanks

Jason Verified buyer

What a fantastic product! We have purchased this sauna to complement and maximise on the view we have at the back of the property! Loving every session and time we created with family!

Cameron McIntosh Verified buyer

Great product, with very helpful, knowledgeable and realistic support by the team and team. It was a significant investment so I wanted clear support and realistic timelines, which was provided throughout. From our experiences in Northern Europe where we really got into the sauna culture, the team has helped us bring that experience into our backyard for everyday use.

Bill Walles Verified buyer

Thank you the team for taking the time to answer my multiple questions And thank you for providing a Great product and Excellent service Cheers Bill

Shared DNA

CLT

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

Exploded view of the OneEighty CLT sauna wall panel layers
60 mm Total CLT panel
3 x 20 mm layers
Heat deeper. Recover better. Repeat daily.
ONEEIGHTY CORE
Evening Ritual
Bare Spruce. Yours to Finish.
The OneEighty Core is the entry point to the range. The same prefabricated cross-laminated timber system and the same afternoon assembly, supplied unfinished so the surface treatment, and a good part of the cost, stays in your hands.
CHOSEN FOR HIGH-PERFORMANCE RECOVERY

Recovery underpins longevity.

AIS
NRL
UFC
AFL
Olympics
NBA
Six details. Zero compromise.

Six Details That Define the Core

The Core is the entry point to the OneEighty range: the same 60 mm three-ply spruce CLT system, specified more simply and supplied unfinished. A pine framed glass door, two CLT framed windows, an EPDM flat roof, ventilation, drainage and foundation slats, ready for the finish you choose.
An engineered timber shell, not a panel kit.

Spruce CLT Construction

An engineered timber shell, not a panel kit.

The Core is built from 60 mm three-ply spruce cross-laminated timber. Seven wall elements, two floor and two roof, each machined in the factory and screwed together on site. Cross laminating sets the grain of every layer at right angles to the next, and that is what holds a solid timber panel flat through the heating and cooling a sauna puts it through. It is the same structural system as the rest of the OneEighty range.

The finish is the part you choose.

Unfinished by Design

The finish is the part you choose.

Every other OneEighty arrives factory finished. The Core arrives bare, in non-visual grade spruce, ready for the paint, stain or oil you choose. It is one of several places the Core is specified more simply than the rest of the range, and it is the one that puts the look in your hands. Treat the outside to suit the garden and leave the inside pale, or take the whole cabin dark.

A bright, quiet room in solid timber.

Interior · Spruce CLT

A bright, quiet room in solid timber.

Inside, the same 60 mm spruce forms the walls, ceiling and benches. The upper bench runs 1855 mm along the back wall at a height of 1070 mm, with a movable lower bench that lifts out when you want the floor back. A wall inlet and an adjustable wall outlet handle the air, both covered with grills.

A flat roof detailed to shed water.

Roof · EPDM Membrane

A flat roof detailed to shed water.

The roof carries an EPDM membrane and adhesive with a sheet metal drip edge along the back to throw rainwater clear of the wall, finished with wooden verge slats. The cabin sits on 45 x 45 mm foundation slats supplied with the kit, so the floor stays off the ground from the first day.

Glazing kept simple, and grey throughout.

Door · Pine Frame and Grey Glass

Glazing kept simple, and grey throughout.

The door is a fingerjointed pine frame carrying 8 mm tempered grey glass, 590 x 1890 mm, hung on Abloy hinges with a wooden handle and EPDM seals. It is reversible, so left or right hand opening is settled at assembly rather than at order. Either side of it sit two window elements, each a spruce CLT frame around the same 8 mm grey glass. Glazing is single throughout and grey is the only glass offered, one of several places the Core is specified more simply than the rest of the range.

Two people, four to six hours.

Delivery · Flat Pack on One Pallet

Two people, four to six hours.

The Core ships flat on a single pallet, 1000 x 1000 x 2050 mm, approximately 820 kg with tare. The heaviest single element is a floor or roof panel at around 44 kg. Wall elements sit near 42 kg, the windows 36 kg and the door 27 kg, which is what makes the two person figure realistic. It goes together in four to six hours with the stainless steel screws supplied, standing on the 45 x 45 mm foundation slats included in the kit. Electrical work is the exception and must be completed by a certified electrician.

Bench options
Standard comfort, more styles available on request.

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.

Bench configurations vary by model.

Available options are confirmed during your private consultation. Some layouts may require additional timber, adjusted lighting, or model-specific changes.

On Heat

From the literature.

Across wellness research and performance culture, sauna bathing continues to be studied for its role in recovery, circulation, and ritual.

joe rogan

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.

Joe Rogan

Host · The Joe Rogan Experience

dr andrew huberman

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)

Dr Andrew Huberman

Neuroscientist · Stanford School of Medicine

Premium Home Saunas & Sauna Timbers Australia

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.

Dr Rhonda Patrick

Biomedical Researcher · FoundMyFitness

In the wild

The Ritual, lived in.

Owners, athletes and architects on the rooms they actually use — in courtyards, on rooftops and beside training pools across Australia.

Common questions

OneEighty Core Outdoor Sauna FAQs

Key details on the OneEighty Core, including what unfinished means, dimensions, CLT construction, seating, the heater and assembly.
What does unfinished mean on the OneEighty Core?

The Core is supplied in non-visual grade spruce CLT with no factory coating on either face. You choose the paint, stain or oil and apply it yourself, inside and out. Every other OneEighty model arrives factory finished, so this is the one deliberate difference that makes the Core the entry point to the range.

How long does the OneEighty Core take to assemble?

Approximately 4 to 6 hours with two people, depending on site preparation and experience. It arrives flat packed on a single pallet with an installation manual included.

What are the dimensions of the OneEighty Core?

Externally 1408 x 2016 x 2150 mm and internally 1270 x 1860 x 1920 mm, given as depth x width x height. Packed for delivery it measures 1000 x 1000 x 2050 mm on one pallet.

How many people does the Core seat?

Two to four. The upper bench runs 1855 mm along the back wall and the lower bench is movable, so the floor can be opened up when fewer people are using it.

What is CLT construction?

Cross-laminated timber is solid timber bonded in layers, with the grain of each layer set at right angles to the next. That makes a structural panel far more stable than a framed and clad shell. The Core uses 60 mm three-ply spruce CLT for the walls, floor, roof and benches.

Is the heater included?

No. The Core takes an electric or wood burning stove of approximately 7 kW, and compatible Harvia heaters can be added above. Control requirements depend on the heater chosen, and all electrical work must be completed by a certified electrician.

Can the door open from either side?

Yes. The door is reversible and is configured for left or right hand opening at assembly, so it suits the site rather than the other way round.

How does the Core differ from the other OneEighty outdoor saunas?

Size is not the main difference, the Core has a similar internal footprint to the Medium Outdoor. What changes is the specification: unfinished spruce rather than factory finished thermo timber, a pine framed door and two windows rather than a full glass aluminium front, wooden roof verge slats rather than aluminium, cabling run on the surface rather than concealed, single glazing with no double glazed upgrade, and a slightly lower internal height at 1920 mm.

What roof and ventilation does it have?

An EPDM membrane with adhesives and a sheet metal drip edge at the rear to carry rainwater away, finished with wooden verge slats. Ventilation is a wall inlet with a grill and an adjustable wall outlet with a grill.

Begin the ritual

Plan your sauna with a specialist.

Discuss sizing, materials, delivery, setup, and the sauna experience you want to create for your home.

01
Fast Delivery
Australia-wide shipping, carefully coordinated.
02
White-Glove Care
Coordinated support from order to handover.
03
Local Support
Australian after-sales care when you need it.
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