A custom sauna cut to the room you already have

The room decides, not the catalogue

A catalogue sauna is a box that you then try to fit into a room. A made-to-measure sauna starts from the room: the width of the alcove, the height under the beam, the wall where the wiring arrives, the window you would like to keep. The cabin is cut to that, and so is the bench arrangement, the glass front and the heater position.

This is the product for anyone who wants a “custom made sauna”: not a luxury, just the only way to put a proper 90 °C cabin into a flat or a converted cellar without wasting half the floor.

Six places that work, and one that does not

• A bathroom alcove or a dressing room. Two seats fit in 1.6 × 1.4 m. A glass front makes it feel like a window.
• A basement or cellar room. Thick walls help; damp does not. We line the room with a vapour barrier and keep timber off the cold wall.
• Under a stair or in a loft. Possible, with the heater placed where the headroom is, and clearances kept.
• A spare bedroom. The most generous option: four to six seats, a glass front facing a window, a shower next door.
• The corner of a spa room in a hotel or club. Eight to twelve seats, a three-phase heater, a door that staff can see through.
• A garage bay. Fine, with insulation and a sealed floor, and a ventilation plan.
• Not a wet room that is also a shower. Water and a bare heater do not mix; separate them with a wall.

What we measure, and why

Ceiling height first. A cabin wants 2.1 m inside and the heater wants clearance above it, so a room that is 2.3 m tall is fine and one that is 2.0 m is a conversation. Then the floor: a sauna with six seats, a heater and a basket of stones is heavy, and old floors, balconies and timber joists need checking by whoever knows the building. Then the walls and the door. Then the supply: the heater wants its own circuit with its own protection, and a 6 kW heater draws about 26 A at 230 V, which is more than a socket and less than a kitchen hob.

From a phone photo to the first heat

Ventilation is the part nobody photographs

A sauna that is not ventilated gets stale and slow. The usual drawing has fresh air coming in low, near the heater, and leaving high on the far side or through the floor level opposite, so the air crosses the room once. In an apartment that means a duct to somewhere safe, or a vent to a bathroom with its own extraction. We draw it in the 3D layout, because it changes where the benches go.

Dry, not steam

We build Finnish-style dry saunas: 90–110 °C, low humidity, water thrown on the stones when you want a burst of steam. A steam room or hammam is a different room with different waterproofing, so it has a page of its own. If you want infrared as well, ask: some cabins take an extra panel on the back wall. Finnish or infrared for a villa explains when it makes sense.

A cabin cut to a room is priced from the same sizes as the others: see the price list, then run your room through the kit builder for a first range.

If the room has a view, read about glass-front saunas; for a flat on a high floor, Barcelona and Lisbon and Cascais cover the lifts and the consents.