Granab Subfloor System for Renovation

GRANAB manufactures subfloor systems for homes, offices, schools and public buildings.
Granab subfloor systems is installed in more than 4,500,000 m2 of floor space in both renovation and new construction projects. The subfloor system is made of steel with different types of damping elements.

The system is patented and meets the requirements of EKS, the European construction standards. It is type-approved by SP Technical Research Institute of Sweden and has a Norwegian technical-approval from SINTEF regarding sound-absorbing properties, dynamic loads, and strength.

GRANAB also designs and delivers mechanically ventilated floors that are in demand in the event of problems with moisture, mold, and radon. Our system eliminates the risk of creaking or unwanted failure that can be caused by drying out or the influence of moisture on floor joists made of organic material, such as wooden joists.

Read more about:

Ventilated subfloors

Checklists / Pre-design

Our systems

Granab subfloor system 3000N

For adjustable height 30 – 140 mm, excl. Floor covering.

Granab subfloor system 7000N

For adjustable height 70 – 140 mm, excl. Floor covering.

Granab subfloor system 9000N

For adjustable height 70 – 140 mm, excl. Floor covering.