Wooden beams - Doka
| Producer country | Austria |
| Wood spices | Spruce, accordance with En 13377 |
| Glue | Melanine resin based adhesive |
| Surface protection | water repellent colour glaze |
| Web | special flat-pressed particle - Board – 22 mm |
| Standart lenghts | 1,25/ 1,80/ 2,45/ 2,65/ 2,90/ 3,30/ 3,60/ 3,90/ 4,50/ 5,90/ 12 |
