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Sauna cabins
A sauna cabin is a garden sauna that also has living and sleeping space. Ehta's sauna cabins are 20–34 m² and cost €27,800–40,900.
Ehta sauna cabins can be adapted for many uses. Extra square metres create space for atmospheric cabin life or enable wonderful accommodation for your own garden. A fireplace, panoramic windows, a kitchen and a bathroom can, if you wish, add a touch of luxury to shared moments.
Which sauna cabin size suits you?
Most commonly our customers choose Sauna Cabin 30, because it's the largest size that can be built without a building permit.
- Sauna Cabin 20 (19.7 m², €27,800): a spacious living area and changing space.
- Sauna Cabin 25 (25.0 m², €32,000): a spacious living area and changing room.
- Sauna Cabin 30 (29.6 m², €36,000): a living area and changing room. Options include, for example, a shower room with a water boiler, or a changing room and WC.
- Sauna Cabin 34 (33.5 m², €40,900): our largest sauna cabin. Over 30 m², so it requires a building permit.
Sauna Cabin 20, 25 and 30 are also available with a covered breezeway: a covered deck separates the sauna room from the living spaces, and the sauna steam doesn't get into the lounge. All sauna cabins can be fitted with the Ehta Bathroom, which has a shower and a heated tiled floor.
The floor plans can always be adapted to your needs and wishes. Together with you we design the positions of the doors and windows, the partition walls and any additions or removals – the models are a starting point, not a limit.
Sauna Cabin 30 m² without a building permit
From the start of 2025, a building under 30 m² that is not intended for permanent living does not require a building permit. Sauna Cabin 20, 25 and 30 fit under the limit. However, the municipal plan and building regulations may set additional conditions or restrictions, so check them with your municipal building control.
Note the intended use: if the building has a fixed cooker, it's considered intended for residential use, and then a permit is required. Winter insulation or a fireplace don't affect the permit. Read more: Building permit for a garden sauna – does building a garden sauna require a permit?
Can a sauna cabin be used in winter?
Yes. The basic package has 90 mm laminated log, 100 mm PIR insulation in the floor and 100 mm of wool in the ceiling. That's perfectly enough for three-season use and occasional winter visits.
If you keep the cabin at a base temperature all winter, choose the winter package: 134 mm laminated log, 150 mm PIR insulation in the floor and 50 mm PIR board in the ceiling in addition to the wool. For Sauna Cabin 20 the winter package costs €4,646 (€27,800 → €32,446). It's usually 10–15% of the building's price, and it pays for itself in heating costs if the cabin is used actively.
What's included in the price of a sauna cabin?
The price includes a complete building with standard equipment. Transport, installation and foundations are not included in the price. With a turnkey delivery, installation is included in the transport price, which is determined by the delivery location. For the foundations you'll receive a dimensioned drawing from us, and you'll see the transport price in your offer.
There are three equipment levels:
- Ehta Valmis: standard equipment
- Ekstra: surface treatment of the exterior, a fully glazed external door, basic electrics, a larger sauna heater, a thermally modified floor and ceiling for the sauna room, a convection fireplace
- Unelma: in addition to the above, e.g. a winter package, a ready-fitted kitchen and a ready-fitted bathroom
The delivery time is about 8 weeks from order confirmation, and it varies according to the order queue. Our offer is itemised in detail: you'll see the price of each optional extra in the offer. You can also book a remote design session or view the financing options.
Sauna cabin with a covered breezeway
Ehta's prefabricated buildings are tailored to each customer's wishes. One example is a sauna cabin with a covered breezeway, where a covered deck separates the sauna and the living area into two units. With the sauna in its own section, heat and steam cannot reach the living area.
The covered breezeway is available for the following sauna cabins:
Nature photographer Hannu Huttu's sauna cabin project
Sauna, autumn and the Northern Lights! Photographer Hannu Huttu had his Ehta sauna cabin delivered to his plot and was admiring the Northern Lights from the deck that same evening. See the stunning photos starring the sauna cabin, the Northern Lights and the beautiful landscapes of Hossa!
Sauna cabin articles
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Questions and answers: sauna cabins
How much does a sauna cabin cost?
With standard equipment, Ehta's sauna cabins cost €27,800–40,900: Sauna Cabin 20 27 800 €, Sauna Cabin 25 32 000 €, Sauna Cabin 30 €36,000 and Sauna Cabin 34 40 900 €.
The price includes a complete building with standard equipment. Transport and installation are priced according to the delivery location, and foundations are not included in the price. For example, a turnkey delivery of Sauna Cabin 20 to Tampere costs €900 including installation.
Does a sauna cabin need a building permit?
Sauna Cabin 20, 25 and 30 are under 30 m², so they do not need a building permit if they are not intended for permanent living. If a sauna cabin has a fixed stove, it is considered to be for residential use, and then a permit is required. Sauna Cabin 34 (33.5 m²) always requires a permit.
The municipality's local plan and building regulations may set additional conditions or restrictions, especially when building by the shore, so check them with the municipal building control.
Is a sauna cabin suitable for year-round use?
The basic package is suitable for use across three seasons and occasional winter visits: it has 90 mm laminated log, 100 mm PIR insulation in the floor and 100 mm wool in the ceiling.
If you keep your sauna cabin at a base temperature all winter, choose the winter package: 134 mm laminated log, 150 mm PIR insulation for the floor and an additional 50 mm PIR board for the ceiling. For Sauna Cabin 20 the winter package costs €4,646. Read whether you need a building suitable for year-round use.
Can you assemble the sauna cabin yourself?
Yes, you can. With a kit delivery you get all the parts numbered and assemble the sauna cabin yourself or with a local builder. As a kit delivery, you get the standard layouts with a mono-pitch roof.
What is the delivery time for the building?
As a rule, all our buildings are delivered in about eight weeks from the order confirmation, depending on the length of the order queue. Remember to allow for any building permit process in your schedule. Some of our models (stock models) are also available with a shorter delivery time.
How much does it cost to transport the building?
The cost of transport depends on the size of the building and the distance. For turnkey deliveries, the transport price always includes installation.
Example prices:
- Sauna Cabin 20, turnkey delivery to Tampere: €900
- Cabin 30 turnkey delivery to Lahti: €3,400
- Garden Sauna 13, kit delivery to Pudasjärvi: €870
What kind of foundations are needed?
We recommend pier foundations or ground screw foundations for all our buildings. The foundations should be built carefully on a frost-free base, so that they are stable and the building does not shift. We will provide a foundation dimension drawing, making the foundations easy to build.
Can the floor plans be modified?
A garden sauna adapts to your needs, and the floor plans can be modified in many ways. Our design starts by listening to the customer's thoughts, wishes and needs. Based on them, we design the best floor plan: the positions of doors, windows and partition walls, and any additions and removals.
Can the building have a window of a different size? What about an outside door to the sauna room? In other words, can changes be made to the standard models?
We have invested a great deal of time and expertise into the design of our saunas. Our models have been refined over the years to be excellent and functional. However, we understand that needs vary and individual modifications are sometimes necessary. Please get in touch and we can discuss what we can do.
Can the building be electrified?
Yes. When the electrical work is done at the factory, the cables are hidden and no surface wiring is needed. Once the building is in place, the consumer unit is connected to the grid. You can arrange this, for example, with a local electrical installation company.
How should the exterior and interior log surfaces be treated?
The minimum treatment for exterior surfaces is a colourless protective treatment that protects against moisture and mould spots. In damp seasons we recommend treating the surfaces soon after delivery. The protective treatment can also be chosen as an optional extra, in which case it is applied at the factory. Otherwise, the same guidance applies as for treating log surfaces in general.
What warranty do the buildings have?
We give a comprehensive 12-year warranty on the log frame. The floor, roof, sauna benches and electrical installations have a 2-year warranty. Other parts are covered by each manufacturer's own warranty.
Dream sauna cabins really do come true
What else does a Finn dream of but a small cabin and a wood-fired sauna?
And it's well worth dreaming about them, because this dream can also come true.
Ehta's sauna cabins combine a small, cosy cabin with famously moist, unbeatable löyly.
A sauna cabin that adapts to your needs. Sauna cabins are redefining the whole idea of the cabin experience.
They offer an authentic cabin experience in a cost-effective package – combining generous sauna facilities with spacious, cosy living and sleeping areas.
Sauna cabins can also be adapted to your needs, with versatile options for the changing room, sleeping areas and door placement, among other things.
