Our high performance 3” thickness exterior doors in Mahogany veneer. This external door and SANDWICH Klima door panels save fossil resources and energy in production. Their excellent ecological balance is based on the use of almost 100% renewable raw materials. Even the insulation insert is made of light, pressure-resistant and heat-insulating solid wood. This binds CO2 and reduces the greenhouse effect. Thanks to its high, ecologically valuable thermal insulation and its special components, it creates the best conditions for a “feel-good climate”. The 2-part flat steel stabilizer is insulated with pressure-resistant light wood, prevents thermal bridges and thus also prevents condensation problems. The door has Passivhaus approval and achieves the best values in all performance classes according to EN 14351-1.