one of twentyonehundred
seven modules. one sauna.
designed by groundwork studio. manufactured by koerner.
Then production closes. Seven modular components configured to site, climate, and use. One design language, one manufacturing standard. Indoor installations are bespoke.
Designed by Groundwork Studio, Copenhagen.
Manufactured by KOERNER Saunabau, Albstadt — est. 1949, third generation.
Modular architecture that adapts to any site. The system scales from a single sauna cabin to a full outdoor ritual or indoor sauna design experience.
same electricity — used twice. heat for the space. hard asset for your savings.
hidden within the m3 bench or bespoke integration. economics scale with two inputs: thermal demand and electricity price. we assess feasibility in the site review.
the indoor sauna features the same bench geometry, timber detailing, and material language as the outdoor unit. each installation is shaped to the space — typically behind panoramic glass, integrated into the architecture of the building.
interior design by Groundwork Studio. manufactured by KOERNER Saunabau.
| design | Groundwork Studio, Copenhagen |
| manufacture | KOERNER Saunabau, Albstadt (est. 1949) |
| outdoor units | 2,100 numbered, then production closes |
| indoor units | bespoke. upgrade current sauna installations. |
| base footprint | ~22 m² (full outdoor configuration) |
| electrical | 400V three-phase |
| lead time | ~8 weeks from confirmed order |
| materials | architectural timber, panoramic glass, stainless steel 316L, powder-coated black steel |
| roof | double side-pitched slate |
| heater | curated selection, specified during design phase |
Full specifications: product sheet
Bespoke. Agreed after design phase.