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Hardboard is one of the most versatile and affordable kinds of sheet material, and the hardboard products in our Building Supplies Online sheet materials range are ideal for those in the construction industry. As well as this they are great for people working in the new build and refurbishment trades for both domestic and commercial projects, who want to buy quality hardboard in bulk at great value prices when undertaking a project.

What is Hardboard?

Hardboard is a composite, engineered wood product, made using moistened residual wood fibres such as wood chips and wood shavings that are then heated and pressed under high pressure to form the hardboard sheets. Because the manufacture process for hardboard makes use of residual wood products it helps to avoid waste and so can be an environmentally responsible product to use in your building and refurbishment projects.

The hardboard products in our sheet material range are certified by the Forest Sustainability Council (FSC). This use of residual wood products in the manufacture of hardboard also helps to make hardboard one of the most affordable types of sheet material for the applications it is suitable for. This manufacturing process of hardboard creates a product that has some especially desirable properties.

Why use Hardboard?

  • Hardboard sheets are thin, which makes them easy to work with, and easy to cut to the exact shape and size that you need without the need for special cutting equipment. The Finnish general hardboard sheeting in our range is only 3mm in thickness, which is ideal for the applications where you will want to use hardboard. 
  • Hardboard sheets are also uniform and even across their surface, with consistent thickness across the panels, no joints or knots that you can find in other types of wood sheet material. They are also without any grain, giving the hardboard sheets a uniform surface appearance.
  • The high pressure involved in the manufacture of hardboard also helps to create a sheet material that is resistant to scuffing or scratching. It also helps to create a material that withstands fluctuations in temperature and humidity well in comparison with some other kinds of wood sheet material.
  • This toughness and consistency across the surface of hardboard panel means that you can drill or hammer into it without risk of splitting. You can therefore use screws, nails, or staples to fix hardboard securely in place.
  • Hardboard sheets can also be secured into place using glues and adhesives. 
  • Hardboard panels have a smooth surface so are suitable for painting, papering, or laminated with paper or plastic overlays, laminates, and veneers. So although the hardboard sheets in our range are supplied in a uniform brown colour it is easy to decorate the hardboard using various means. These properties of hardboard help to make it versatile, and it has a number of applications in new build and refurbishment projects.

Our hardboard sheets also have a smooth surface that should be laid face up when the hardboard is used as underlayment. This smooth face makes it easy to lay the floor covering on top of the hardboard underlayment and move it into place to fit your room.

Where to Use Hardboard?

Among the most common uses of hardboard is to provide a floor covering in its own right, or to act as an underlay onto which to lay floor coverings of different types. The thinness of hardboard panels, as well as their consistent evenness across the surface makes them ideal for laying over floorboards. Hardboard underlayment provides an excellent base for various kinds of floor coverings including vinyl, or liner felt.

The hardboard panels in our sheet materials range are manufactured to have a rough side that should be laid as the underside of the hardboard panel when using it as a floor covering, to help the hardboard old securely in place and avoid slipping.

Hardboard is also suitable for use in domestic and commercial furniture, for instance to provide drawer bases, cupboard and cabinet backs, as well as decorative purposes. This is due to its rigidity, and thinness.It is therefores commonly used in signs, and skins for;

  • Doors
  • Bars
  • Walls

Hardboard sheets are a man-made composite board that is also known as a high-density fibreboard. They are manufactured from wood fibres and chippings that are formed together under heat and pressure. Hardboard sheets are a versatile product that is firm, robust and an economical choice for most projects.

Hardboard sheets are used for floorboards, furniture making, wall panelling and many other DIY jobs.

Do check the instructions that the flooring manufacturer has given as some vinyl flooring types suggest using the hardboard sheets rough side uppermost. The hardboard sheets are a regular thickness all over, which means they are easy to work with. As mentioned before Hardboard sheets are resistant to humidity and temperature fluctuations which means they can be used to build a subfloor and be used with things like underfloor heating.

It is possible to use waterproofing primers on hardboard sheets to give them some moisture resistance, as without protection hardboard sheets will absorb liquids. If you are planning to paint the hardboard sheets you will need to start with a primer base to then paint onto, and build up the layers.

To make hardboard sheets really firm and less likely to buckle if they do come into contact with moisture, you will need to condition them by airing them in the same temperature they will be used in for around 48 hours before use. If you can separate the boards during this time, then this will help them air properly.

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