The timber cladding is made from Finnish spruce. It has larger capacity to absorb moisture, compared to e.g. pine, while still holding it's dimensions. Each board should to be cut from the tree's core for longer lifespan. The boards are 28mm thick and have a 'UTS'  cut profile which is suitable for vertical layout and gives a nordic classic villa look. The boards were pre-painted at the factory and then painted twice before assembly.