Durox Floor Blocks

Durox is a modern construction material, whose versatility, light weight, thermal and acoustic properties make it the ideal solution for a wide variety of applications in all types of building.

Durox can be used below ground in foundation walls, in suspended beam and block floors and in all types of internal and external walls. It provides many benefits for specifiers and contractors making it the natural choice where blockwork is specified.

Durox Floor blocks are used in ground floors to reduce the U-value and minimise wastage.

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  • Beam and Block Floors


  1. Low unit weight

    The light weight of Durox means more blocks per load, resulting in more environmentally-friendly transportation. 

  2. Fast building blocks

    Independently monitored trials have demonstrated that Durox Supabloc is over 20% faster to build with than conventional size aircrete blocks and over 30% faster than dense blocks.

  3. Easy to work

    Cutting, chasing and finishing are all straightforward and quick to achieve using standard tools.  

  4. Excellent acoustic and thermal performance

    Good U-values and Rw values, as well as Robust Details help specifiers more easily meet or exceed Code for Sustainable Homes and BREEAM requirements.

  5. Mortar Saving

    Due to fewer mortar joints, mortar savings of up to 22% can be made when compared to conventional size blocks. 

  6. Size

    At 620mm long, Durox is 40% longer than conventional size blocks, meaning they lay at 7 per m2 including mortar joints. 

Application Details

Floor blocks are suitable for use in suspended ground and internal floors in conjunction with precast concrete beams.

They are light and quick to install, and provide effective sound and thermal insulation for ground and internal floors meeting the requirements of the Building Regulations.

The use of Durox Floor Blocks can achieve economy in the overall design of the floor. Firstly by a reduced dead load, secondly, the size of the block allows much more flexibility in beam spacing allowing fewer beams to be used.

Transverse Load
The blocks have been tested spanning 530mm and 620mm to sustain a point load of a 3.5KN transferred via 100mm x 100mm steel plate.

Thermal Insulation
The use of Durox Floor blocks may reduce the amount of ground floor insulation needed compared to the use of denser floor blocks. This will be further improved when used in combination with Durox Foundation blocks.

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