High height/Plastic film
High height
The level of the Granab subfloor system 7000 can be adjusted up to 420 mm as standard. If more height up to 1000 mm is required, a Masonite beam or steel Z-section is installed above the Granab system.
![highheight1](https://www.granab.se/wp-content/uploads/2021/05/hoghojd1.png)
7000N high with Masonite beam.
![highheight2](https://www.granab.se/wp-content/uploads/2021/05/hoghojd2.png)
7000N high with steel Z-section.
Plastic film
The plastic film is best installed above the subfloor system.
![Plastic film1](https://www.granab.se/wp-content/uploads/2021/05/plastfolie1.jpeg)
The chipboard is installed according to the manufacturers installation instructions.
![Plastic film2](https://www.granab.se/wp-content/uploads/2021/05/plastfolie2.jpeg)
Our systems
![Granab_System_3000N](https://www.granab.se/wp-content/uploads/2021/03/Granab_System_3000N.png)
Granab subfloor system 3000N
For adjustable heights from 30 to 140 mm, excluding floor covering.
![Granab_System_7000N](https://www.granab.se/wp-content/uploads/2021/03/Granab_System_7000N.png)
Granab subfloor system 7000N
For adjustable heights from 50 to 420 mm, excluding floor covering.
![8000N25 for audio side CLT](https://www.granab.se/wp-content/uploads/2022/02/8000N25-for-ljudsida-CLT-300x120.png)
Granab Subfloor system 8000W
For adjustable height 85 – 470 mm, excl. Floor covering. For new construction and renovations, primarily for wooden flooring e.g., Cross-laminated timber.
![Granab_System_9000N](https://www.granab.se/wp-content/uploads/2021/03/Granab_System_9000N.png)
Granab subfloor system 9000N
For adjustable heights from 70 to 420 mm, excluding floor covering.