Idun · Build your sauna
4XL Box Relax Sauna
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Full specification & details
The 4XL Box Relax Sauna pairs a sauna room with a dedicated relax / changing room in the modern box format — two-level thermowood benches let you choose intense upper heat or a gentler lower seat.
What’s included as standard
- Spruce-wood box cabin, fully assembled and ready to use
- 2 thermowood benches with backrest
- Tinted glass door
- Unpainted terrace-board floor
- Harvia light
- Adjustable ventilation grid
- Dark-grey steel roof
- Exterior finish: transparent teak, brown, grey or clear paint
Specifications
| Length (outside) | ~400 cm |
|---|---|
| Width (outside / inside) | 200 / 192 cm |
| Height (outside / inside) | 245 / 230 cm |
| Layout | Sauna room + relax / changing room |
| Benches | Two-level thermowood with backrest |
| Approx. capacity | 4–6 bathers |
| Heater | Wood-fired or electric (optional) |
| Warranty | 24 months |
Configure your wood, heater, glazing, finish and comfort options below — the price updates live. Photos may show optional extras (heater, windows, premium finishes) that are not part of the base price. Prices exclude VAT & delivery.
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Send us your build and we’ll confirm price, delivery to your country and lead time.



