Benefits of the Granab Subfloor System


  • Long-term building durability – lifecycle measured in centuries
  • Minimal site waste and zero waste achievable with offsite prefabrication
  • 50% less CO2 impact than concrete and fully recyclable
  • Light and easy to handle with extra long installation tools for installers comfort


Dry & Lightweight

  • A dry, moisture free product, no drying , no humidity problems
  • Lightweight at 5 kg/m2. By contrast, conventional topping screed solutions have a weight of 100–200 kg/m2
  • Can be assembled directly on untreated subfloors without wet surface levelling
  • Can accommodate wires and pipes underneath without producing structure borne sound


Fast & Durable

  • The durable nature of Granab® means that it can ably facilitate future modifications
  • Kit and supply & Install options are factory cut to detailed plans, labelled and packed by room
  • Installation rate of 4m2 per person per hour
  • Rooms are ready to use immediately after installation
    • no drying time
    • no condensation
    • no dehumidifying
    • no splashing


Design flexibility

  • Ability to locate or move drains and services to meet requirements
  • Ideal for various underfloor heating systems
  • Sloping to drains for the perfect wet room
  • Easy to level and match floor heights of modular components
  • Suitable for use in any type of room and covered with a variety of finishes, including tiles, timber and carpet
  • Partition walls can be easily fitted on top of the flooring system to allow continuous running of services throughout a unit


In a good living and working environment, it is important that floors are not hard or entirely rigid, which can cause pain in the back and legs. The Granab® system with their integrated impact-dampening effect, provide comfortable floors with documented deflection properties for point loads.

  • Creak-free, comfortable floors that are environmentally friendly