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.

Standard features

Ehta Valmis

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

27 800 €

The price includes

  • 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
A notch better

Ehta Ekstra

The Ekstra specification offers more. Enjoy hassle-free use. Our most popular choice!

36 500 €

In addition to standard equipment:

Fully equipped

Ehta Unelma

Distinctive design meets a luxury user experience.

62 200 €

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
25 experiences
(13 public)
Sauna Cabin 20
The building got finished enough to make it through the winter. We'll finish building it next summer. Everything has gone pretty well. The building instructions with pictures could be more detailed for an amateur builder and up to date with how the details look today.
Mats o Karin Byggmästar
Overall rating
Customer service
Sauna Cabin 20
Friendly service, reliable delivery, everything went smoothly
Sointu and Arsi Meiseri, Saarijärvi
Overall rating
Sauna Cabin 20
Everything worked as agreed. The sauna even arrived earlier than the original delivery schedule.
Arto Salmikangas, Ylöjärvi
Overall rating
Sauna Cabin 20
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.
Jari Puustinen, Hämeenlinna
Overall rating
Sauna Cabin 20
A smooth and pleasant process. A minor warranty issue was also handled effortlessly.
AaVee, Lapua
Overall rating
Customer service
Sauna Cabin 20
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.
Ari Nyman, Helsinki
Overall rating
Customer service
Sauna Cabin 20
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!
Toni, Polvijärvi
Overall rating
Customer service
Sauna Cabin 20
Everything worked brilliantly from sales to delivery, highly recommended!
Riku, Juva
Overall rating
Customer service
Sauna Cabin 20
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.
Marketta Tiira, Helsinki
Overall rating
Customer service
Sauna Cabin 20
The sauna has been a great purchase! The rooms and materials are high quality and the building looks stunning.

As modifications, we ordered deeper plank sauna benches and larger windows, and these were a good decision too.

The löyly is excellent and the living areas are just what we hoped for. The delivery went smoothly and overall it's 5/5.
Matti, Lappeenranta, Lappeenranta
Overall rating
Customer service
Sauna Cabin 20
We got a wonderful, functional package effortlessly! Modern design, the option to make changes and a delivery-ready package were our decision criteria, and Ehta met them brilliantly.

Regards, Hanna
Hanna Laavainen, Kauniainen
Overall rating
Customer service
Sauna Cabin 20
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.
Minna Javanainen, Lempäälä
Overall rating
Customer service
Sauna Cabin 20
The sauna-and-lounge building is 2.6 m deep and 7.6 m wide, with one extra course of logs. The sauna type is Vihta XXL, which has a 1.2 m wide porch and a WC between the sauna and the lounge.
- the layout fitted a 1-metre-wide mini kitchen with wall cabinets into the lounge, and there's plenty of room for a sofa bed and a table for two as well. The layout is excellent for the size of the cabin.
- The sauna benches could have been placed so that you'd sit closer to the sauna heater when bathing. From the benches you have to throw the water an awfully long way to reach the heater.
- The delivery of the sauna cabin with the agreed modifications didn't go quite perfectly (8 on a scale of 1-10): some agreed parts were missing from the delivery, but 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 happy with the delivery.
Matti Kaurila, Kirkkonummi
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.

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Ehta
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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
Ehta

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