The Black Box Sauna is our wellness statement for the garden: on the outside, a deep, dark, tranquil cube; on the inside, a warm retreat with a view of the greenery. This sauna garden pavilion with panoramic glazing demonstrates just how striking the contrast is – the dark exterior makes the surroundings glow, whilst the large pane brings the garden into the sauna room. Designer wellness that gets you excited even from the terrace.
The centrepiece inside is the bio sauna heater. It offers flexibility in choosing your sauna session: classic Finnish-style with dry heat – or a gentler steam sauna session with a lower temperature and higher humidity. This way, the sauna adapts to how you feel on the day, not the other way round – and even guests who find 90 degrees too much will find it to their liking.
A special feature of the interior design is the integrated RGB LED lighting in the backrests, as well as the indirect downward lighting, which creates an atmospheric ambience in the relaxation area. The lighting can be adjusted to suit the mood – from a warm candlelit tone to a cool blue – and turns an evening sauna session into an experience without causing any glare.
The outer cladding, made from Trespa HPL composite panels, is specifically designed for long-term outdoor use and withstands moisture and temperature fluctuations with ease – no small matter for a sauna where temperatures can reach 90 degrees inside whilst it’s freezing outside. The sauna garden house retains its shape and colour for years without any maintenance required for the façade: no painting, no oiling, no further treatment. It is estimated to have a lifespan of around 50 years.
The generous glazing is what sets this apart from a standard sweat cabin and makes it a true wellness room: instead of looking at wooden walls, you gaze out into your own garden – at lush greenery in summer and snow-covered branches in winter. Our reference project, a black outdoor sauna made from HPL, demonstrates how the design looks in pure black with a panoramic pane.
Our garden sauna is developed in-house and manufactured in Germany – the structure, glazing and sauna technology are all coordinated from a single source. For the exterior cladding, you can choose from over 250 HPL colours and finishes; we’ll send free colour samples to your home. We deliver throughout Europe, and our team takes care of the installation. Over 2,000 completed projects and a 5-star rating from more than 220 Google reviews speak to the care we take.
Do you dream of having your own Black Box sauna? Get in touch via the enquiry form or visit our showroom in Augsburg – we’ll be in touch with specific proposals regarding size, heater and price.
Order conveniently online now and have it delivered to your home
No impregnating, sanding or painting - never again thanks to HPL!
Exceptionally high-quality construction and materials
We believe in love at first sight – that's why we understand your palpitations. Feel free to send us a message using the form opposite and we will get back to you as soon as possible with more detailed information on the dimensions and prices of the finish in this project.