Strong frame construction, vertical rafters ca. every 40 cm. 
Option : isolation between the rafters. 
Option: Anti-damp cloth.
- 22 mm + 58
Brushed thermo pine - 22 mm + 58
Brushed thermo pine - 22 mm + 58
Brushed oak - 22 mm + 58
Brushed oak
Woodtypes:
- Price range:
- Explanation woodtypes: