Sauna Cabin 20

Total area: 19.7 m2
4.7/5

A small sauna cabin

The popular small sauna cabin fits a sauna with delightful löyly, a changing room or a separate washing area, and a sauna lounge. As well as being a place to cool off, the sauna lounge also serves as a peaceful space of its own for guests, young people or even families with children at a multi-generational summer place.
Sauna Cabin 20 is made from sturdy laminated log. Thanks to its compact size, it works as a sauna cabin and as extra space alongside the main cottage or in the garden of a detached house. The changing room between the hot sauna and the lounge separates the two, giving the small sauna cabin ideal possibilities for use.
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Price

Turnkey delivery: €27,800
On finance: €473/month
As a kit: €21,400
Prices with Ehta Valmis equipment. View other equipment levels ›

Sauna Cabin 20 can be built without a permit

The Building Act was reformed at the start of 2025, and outbuildings under 30 square metres no longer require a permit. Read more from our article.

If you need a building permit, we will provide the necessary drawings and help you with the permit application. You can also order a building permit service, in which case we will apply for the permit on your behalf.

Tailor the model to your needs

This model can be modified and equipped in many ways. We will help you design a package that suits your needs.

Floor plan

The model can be built with several different floor plans. In addition to the standard layout, a few examples are shown below. All floor plans are also available as mirror images.

Sauna Cabin 20 A

Spacious lounge and changing area. Separate entrances.

Sauna Cabin 20 A Breezeway

Spacious living area and covered breezeway.

Sauna Cabin 20 B

Spacious lounge and shower room. Separate entrances.

Sauna Cabin 20 C

Mirror-image floor plan. Spacious lounge area. Access to the sauna from the gable end.

We'll design a model just for you

The floor plan can be modified to suit your needs. Tell us what you have in mind, and together we will design a model that meets your needs.

Equipment level

The equipment level for the building can be chosen from three different options. It is also possible to customise and supplement the equipment with accessories.

Wood-panelled sauna lounge with a wood-burning sauna heater, a bench, a bucket and ladle, a firewood store and a small window.

Ehta Valmis

Everything ready as standard
Ehta Sauna Cabin 20 Valmis
27 800 €

Ehta Valmis standard equipment is the starting point, so you can enjoy your building as soon as it arrives.

  • Log frame: 90 mm warp-resistant laminated log from Finland
  • Double-glazed insulated windows with maintenance-free aluminium-clad timber frames
  • Lockable external doors
  • Flooring: 28 mm pine tongue-and-groove boards
  • Ceilings: 120 mm spruce panelling
  • Mono-pitch roof with felt roofing
  • Rodent mesh in the roof structure
  • Roof insulation: 100 mm mineral wool
  • Floor insulation: 100 mm FF-PIR
  • Architectural drawings of the model building (floor plan, elevation and section) and a foundation dimension drawing
  • Free online Oma Ehta service
Sauna
  • Modern, sturdy spruce plank benches, safety rail and step stool
  • Harvia 16 or 20 sauna heater with glass door, round Jeremias chimney water tank 25 l, heater stones
  • Sauna heater safety walls, heater base and hearth plate
  • Insulated Jeremias flue
  • Sauna room floor of oil-treated pine tongue-and-groove boards, water channel for draining wash water
  • Glass or wooden internal door
Interior of a wooden sauna with a stone-filled sauna heater, a window, wooden benches and striped rugs, and sunlight streaming in through the glass door.

Ehta Ekstra

A notch better
Ehta Sauna Cabin 20 Ekstra
36 500 €

Ekstra equipment offers more. Enjoy a carefree user experience from the start. The most popular choice!

In addition to standard equipment:

Modern wooden sauna interior with dark walls and bench seating, a stone-filled metal wood-burning sauna heater and a bucket and ladle placed on the bench.

Ehta Unelma

Fully equipped
Ehta Sauna Cabin 20 Unelma
62 200 €

Distinctive design meets a luxury user experience.

In addition to standard equipment:

Changes

Standard model not quite right? No problem – it can be modified.

Windows and doors

The size, location, and number of windows and doors can be changed.

Roof

The model is available with a mono-pitch roof or a gable roof.

Corners

As an alternative to the durable crossed log corner, there is the sleek City corner.

Height

The model already has a generous ceiling height, but it can be raised further by adding log courses.

Accessories

A comprehensive range of accessories is available for the model.

Ehta Bathroom

A bathroom with a heated tiled floor and a shower

Ehta Kitchen

A quality log cabin kitchen, installed ready, from a Finnish manufacturer.

Convection fireplace

Smidson Vigo convection fireplace

Heat-retaining fireplace

Witka Wood Piccolo – heat-retaining convection fireplace

Surface treatments

Interior and exterior surface treatments, partly or fully

Electrical package

Electrical installation and lighting for the building

Ready-made deck

Ready-made deck supplied with the building

Canopy

Front canopy or gable-end canopy, ready installed

Winter package

Thicker 134 mm log and extra insulation.

Toilet

A toilet for added comfort

Sauna equipment

No compromises on the löyly! Choose the sauna accessories you like.

Mestaripuuseppä benches

Designer sauna benches made by Mestaripuuseppä Tingander

Harvia 20 Pro sauna heater with front water tank

A more powerful heater than the standard model.

Harvia Legend sauna heater with a large stone capacity

Harvia Legend 240 GreenFlame heater with a huge stone capacity

Through-sawn aspen benches

Traditional aspen benches made from through-sawn aspen planks.

Cauldron water heater

Separate cauldron water heater for when you need more hot water

Effortless turnkey delivery

Ehta's ready-made log buildings are built in dry factory conditions, delivered in one piece and installed ready for use.

The building arrives on site on the back of a lorry and is lifted onto the foundations by crane. Installation on site typically takes less than 2 hours. You can enjoy the atmosphere of your new cabin or the löyly of your garden sauna the very same evening.

Also available as a kit

Is your site on an island, or would you like to build it yourself? Read more about our complete kit.

Request a quote for this model

You will receive an itemised quote from us, which will also include the cost of transport.

Sauna Cabin 20 experiences

Average
4.7/5
23 experiences
(12 public)
Friendly service, reliable delivery, everything went smoothly
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Sointu and Arsi Meiseri
Overall rating
Customer service
Everything worked as agreed. The sauna even arrived earlier than the original delivery schedule.
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Arto Salmikangas
Overall rating
Customer service
I've already recommended it to a friend who's planning to build a garden sauna. And the effortless design phase and value for money of a sauna delivered ready-built, with excellent steam.
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Jari Puustinen
Overall rating
Customer service
A smooth and pleasant process. A minor warranty issue was also handled effortlessly.
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AaVee
Overall rating
Customer service
Good steam. If you want it a bit milder, that works by keeping the temperature at 60-70. For something stronger, 80 is already plenty. The options were good. We're happy with the slightly wider benches and the large picture window. These changes went easily. Brilliant overall.

The reason I didn't give five stars overall is that there were a few little things.
Closer inspection showed that a few staples had been left here and there on the inside, and there was debris and insulation wool under and inside the sauna heater.
Otherwise, yes – thumbs up to you.
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Ari Nyman
Overall rating
Customer service
The whole process went as planned and on schedule. The customised solutions and the sauna glass that broke in transport were also sorted out remarkably quickly, despite the summer holiday season. Strongly recommend this supplier!
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Toni
Overall rating
Customer service
Everything worked brilliantly from sales to delivery, highly recommended!
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Riku
Overall rating
Customer service
The sauna cabin is just what we set out to buy. The whole process from ordering to delivery went well and as agreed. The service was friendly, knowledgeable and quick.
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Marketta Tiira
Overall rating
Customer service
The sauna has been a great purchase! The spaces and materials are of high quality and the exterior of the building is gorgeous.We ordered deeper plank benches and larger windows as customisations, and these were also a good decision.The steam is excellent and the lounge areas are just what we hoped for. The delivery went smoothly and overall it's a 5/5 experience.
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Matti, Lappeenranta
Overall rating
Customer service
We got a fantastic, practical package with no hassle at all! Modern design, the option to customise and a ready-to-deliver package were the criteria that guided our decision, and Ehta ticked all those boxes perfectly.Kind regards, Hanna
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Hanna Laavainen
Overall rating
Customer service
Despite the lovely sauna, we haven't had a chance to use it yet, so we cannot comment on the sauna's steam. We give full marks for everything else, but one thing worth noting for other sauna buyers is the building's electrical system. We had planned to have ceiling lights and had also shown the pictures to Ehta, but installing them on the ceiling turned out not to be possible after all.
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Minna Javanainen
Overall rating
Customer service
The lounge sauna is 2.6 m deep, 7.6 m wide and has one extra log course. The sauna type is Vihta XXL, which has, between the sauna and the lounge, a 1.2 m wide entrance porch and a WC. – the layout fitted a 1-metre-wide mini kitchen with wall cabinets in the lounge, and there is also plenty of room for a sofa bed and a table for two. The layout is excellent in relation to the size of the cabin. – In the sauna, the benches could have been arranged so that you'd sit closer to the heater when taking löyly. From the benches you have to throw the water a long way onto the heater. – The delivery of the sauna lounge with the agreed changes didn't go quite perfectly (8 on a scale of 1-10); some agreed parts were missing from the delivery, and they were duly delivered later. The felt on the deck canopy didn't stay on its base during transport, but I received appropriate compensation for this. – Overall, I'm satisfied with the delivery.
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Matti Kaurila
Overall rating
Customer service

We publish all experiences for which the customer has given permission to publish. The customer survey has been sent to all our customers since 2021. Feedback on models that are no longer sold has been combined with the most closely corresponding current models.

Also explore other buildings:

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Total area

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Price

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Total area

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Price

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Ehta's modern, dark, ready-made log sauna cabin with panoramic windows and a wooden terrace. There is outdoor furniture on the terrace and a large maple tree grows in front.
4.5/5

Total area

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Price

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FI | EN | SV

We’ll call you at a time that suits you

Sauna Cabin 20: 3D model

Ehta Valmis – standard specification

  • Log frame: 90 mm warp-resistant laminated log from Finland
  • Double-glazed insulated windows with maintenance-free aluminium-clad timber frames
  • Lockable external doors
  • Flooring: 28 mm pine tongue-and-groove boards
  • Ceilings: 120 mm spruce panelling
  • Mono-pitch roof with felt roofing
  • Rodent mesh in the roof structure
  • Roof insulation: 100 mm mineral wool
  • Floor insulation: 100 mm FF-PIR
  • Architectural drawings of the model building (floor plan, elevation and section) and a foundation dimension drawing

Sauna

  • Modern, sturdy spruce plank sauna benches
  • Harvia 16 or 20 sauna heater with glass door, round Jeremias chimney water tank 25 l, heater stones
  • Protective walls and base for the sauna heater
  • Insulated Jeremias flue
  • Sauna room floor oil-treated to be highly moisture-resistant, water channel for draining wash water
  • Glass or wooden internal door

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