About us
While we’re proud to have millions of square metres of installed subfloor systems under our belt, that’s far from what defines our success. Our focus is to constantly drive the development of smart subfloor systems. We make things easier and simpler for our customers by contributing our knowledge to find the best and most flexible solution for each unique need.


Consultative partner in the cooperation
Since our foundation in 1995, we have focused on problem solving, documentation and quality assurance.
Over the years, we have accumulated knowledge, experience and documentation that sets us apart in the market. Through valuable insights from our data, we continue to develop technical solutions that create greater value for our customers. We carry the knowledge we have acquired into each new project, making us a valuable consultative partner in our cooperation.
Cost-effective and easy installation
Our goal is to make the preparation and installation process easier and more efficient for our customers. We actively work to make it easier by supplying customised girders, with support blocks and dampening elements pre-assembled. Each girder is labelled with the room name and length that corresponds to the installation drawings for each apartment or other agreed area.
The Granab system is a dry installation method, which is installed on the concrete or CLT without wet surface levelling. This makes it flexible with wiring between the concrete/CLT and the floorboards. An easy installation reduces the total cost of the project and allows you to eliminate unexpected costs by streamlining site logistics.


Technical developments in environment and acoustics
The Granab system has been developed in close co-operation with sound consultants in the construction industry to meet high environmental and sound requirements. The subfloor system is environmentally declared and has up to 50% less CO2 impact than concrete. The system fulfils the requirements of EN (Eurocodes), is type-approved by RISE in terms of sound-absorbing properties, dynamic load and strength. Environmental Product Declaration (EPD) is available on all our systems.

Our history
Since 1995, Granab has strived to deliver a sustainable product, and over the years we have evolved and developed new products that simplify and streamline the building process.
BYGG- OCH MILJÖTEKNIK
GRANAB AB
Vårgårda, Sweden
Our office
For 30 years we have been in the heart of Västra Götaland, Sweden, providing supfloor systems to all kinds of building projects.

Granab’s
sustainability work
All our subfloor systems are environmental product declared (EPD), type approved and have up to 50% less CO2 impact than concrete.
About us Presentation of Granab
Environmental certification
Granab works actively to reduce environmental impact and has certifications that confirm our commitment to sustainability. All our subfloor systems have Environmentally Product Declarations (EPD).

