Craft Design Construction Ltd is an independent supplier of Viroc Cement Bonded Particle Board.

Working with our partners in Portugal, we have set up a robust supply chain to source standard and bespoke board dimensions. Boards can also be profiled, CNC (Computer Numerical Controlled), and drilled with screw holes. This means the boards can be prepared and delivered direct to site without requiring further work except for sealant which should be applied in situ. A process that allows for lower procurement costs and delivery efficiency.  Procurement efficiency is subject to factory output and shipping. 

We can fulfil large and small orders. Projects include residential extensions and fit-outs to and commercial contracts, such as Selfridges Oxford Street, London, Starbucks various locations (Thompsons Contracts, and WSG Interior Systems), Nike showroom Soho (Method Ltd Design & Build practice), and Nike King’s Cross (Loughton Contracts PLC). A limited stock is maintained in the UK, subject to availability. 

Director of Craft Design Construction, Richard is a UK-registered architect who has supplied Viroc Cement Bonded Particle to the UK market since 2013. His professional experience, of working with clients, designers, contractors and consultants means he can bring to the table a product knowledge and professional interest. This means Richard is uniquely placed to add value to your project, adding value when it comes to specifying the material and its application.

To further information including technical specification and competitive prices please email 

VIROC CEMENT BONDED PARTICLE BOARD is a composite material of compressed and dry pine wood particles and cement. Combining the flexibility and durability of wood with the strength of cement, Viroc is suitable for a large range of applications, both internally and externally. Suitable for facades, walls, ceilings, flooring, joinery. Please note, Sanded not suitable for all applications. 

  • THICKNESSES: 8, 10, 12, 16, 19, 22, 25, 28, 32mm. Not all finishes/ Sanded/ Unsanded available in all thicknesses.
  • STANDARD BOARD DIMENSIONS: 1260 x 3000mm and 1260 x 2600mm.
  • BESPOKE SERVICES & CUTTING: Available on request. 
  • SOUND INSULATION: Good sound insulation properties due to its high weight. The sound insulation index varies according to board thickness. Airborne sound resistance is 31 or 37 dB depending on whether board thickness is 8mm or 22mm, respectively.
  • NON-TOXIC: Does not contain dangerous volatile compounds and is free of silica, asbestos and formaldehyde.
  • MOISTURE RESISTANT: Under the action of water it does not disaggregate. Impermeable to water and resistant to water vapour.
  • THERMAL INSULATION: Good thermal resistance properties, meaning that it can function as insulation in both cold and hot temperatures.
  • WEIGHT RESISTANT:  The board has a bending strength that enables it to be used as a resistant structural element. It is therefore used in flooring and as roof support. The characteristic breaking strength on bending is 10.5 N/mm2 with an elasticity modulus of 6000 N/mm2.
  • FIRE RETARDANT: Prevents the spread of fire. According to the ignitability test conducted, it is classified as B-s1, d0 in accordance with EN 13501.
  • INSECT RESISTANT:  Will not degrade with the action of living organisms such as fungi, termites, or any kind of insects.
  • EASY INSTALLATION: Cut, drilled and sanded. The tools and fastening systems used for Viroc boards are identical to those used with wood. A Tungsten blade is recommended for in-situ sawing.
  • SEALANT: Viroc should be sealed in situ to protect against water, dirt and stain. Hempacryl Solfix 26P02 by sealant manufacturer Hempel is suitably recommended. A full specification is available on request.

NB: Viroc is manufactured as a non-homogeneous material, with a standard ‘rough’ finish that may present some shades due to the composition of cement porosity and salts. Usually these shades run in lengthways and sometimes appear as ‘lines’, the directions as a result of the production line up. A natural occurrence on the panel’s surface that may be more pronounced in some productions than others due to properties of the raw materials.

In most cases this natural look or manufactured condition is what makes the material attractive in the first place. If required, the ‘lines’ or shades can be smoothed by “polishing” the panel surface but it will never disappear 100%. To polish the panel surface it’s recommended to use a polishing disk (“scotch brite”) or sanding disk of 180gr minimum. This procedure will remove the superficial cement salts and will homogenise the panel surface, smoothing out the natural shades. Where required, a process undertaken at the factory. Click here to review the Viroc polishing technique