Pine - preferably selected raw material for production of windows. Pine has a bright fresh colour, durability, excellent resistance to weather conditions and excellent thermal and acoustic insulation. Accessible, easy to handle and cost-effective. It is recommended for customers who value traditional solutions and economical use.

Meranti - this exotic species of hardwood timber from Indonesia has extremely high resistance to weather conditions. The windows made of this material are not only durable but also very warm and quiet. Meranti wood density strongly depends on the species and can range from 300 kg/m3 to 1050 kg/m3. It is recommend for places exposed to moisture. In windows and doors production most commonly used meranti is the one with a density above 450 kg / m3, which ensures consistent quality of the final product.

Oak - is the best building material out of native broadleaved trees, better than pine or even larch. Oak wood is hard, very durable and resistant to abrasion. It is characterised by high durability and resistance to changing moisture conditions. It has been widely appreciated all around the world for centuries.