Granab systems in attics and when adding extra floor levels

Granab subfloor systems have shown their advantages in projects that prioritise low weight in combination with effective impact and airborne sound reduction, for example when constructing an extra floor level. Granab systems have a low weight per square metre. Granab systems weigh only around 5 kg per square metre, compared with conventional topping, that can have a weight of 240 kg per square metre with a topping height of 10 cm.

Granab systems on wooden subfloors

Granab subfloor systems can also be installed on wooden subfloors. For fixing, wood screws are used instead of concrete anchors. Contact Granab for more information.

Our systems

Granab subfloor system 3000N

For adjustable heights from 30 to 140 mm, excluding floor covering.

Granab subfloor system 7000N

For adjustable heights from 50 to 420 mm, excluding floor covering.

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 subfloor system 9000N

For adjustable heights from 70 to 420 mm, excluding floor covering.