Crafted in Denmark from thermally modified German Timber ( TMT Ash, Pine, Beech lamination), Lacuna bifold doors offer outstanding durability, airtightness and thermal performance—ideal for low-energy and Passivhaus homes.
With an ultra-slim 56mm timber profile, the slimmest on the market, they maximise light and space while delivering a sleek, minimalist aesthetic. Every set is made to measure, with custom options including frame types, colours, handles and glazing bars - making them a favourite with architects.
Engineered for longevity, all fittings are made from acid-proof stainless steel and available in powder-coated finishes. Double or triple seals ensure excellent protection against air and water ingress, with certification to PAS 24 and RC2N standards.
Using class 1 durable timber and advanced automotive painting techniques, these doors require minimal maintenance - painted options can last up to 20 years.
Whether for a new build or retrofit, Lacuna doors are a sustainable, stylish way to bring the outside in—without compromising on comfort or performance.
