18mm P5 Moisture Resistant Chipboard Flooring T&G 2400mm x 600mm (8' x 2')

Colour and finish are representative only and may vary slightly as this is a natural product.

What Is 18mm Chipboard Flooring?

P5 18mm chipboard flooring is a flooring-grade chipboard manufactured for load-bearing structural applications where moisture fluctuation and high humidity pose a problem. The title's 'tongue and groove' design refers to the interlocking mechanism of the chipboard floorboards, which fit together seamlessly to create a secure, tight bond, ensuring durability and lasting strength.

Engineered to provide a sturdy foundation for further flooring work, these particleboard sheets are specifically designed to shield tile, slate, carpet, and linoleum from the effects of humidity. 18mm chipboard flooring is primarily designed to serve as a reliable sub-base, but it is also suitable for direct decoration with the appropriate tools and techniques.

Whether you're undertaking a loft conversion or a floor installation, P5 sheets offer an ideal, smooth surface to work on. Their refined finish makes them perfect for applying veneers or decorative treatments, ensuring a professional and polished appearance.

18mm Chipboard Flooring Sheets Uses

P5 chipboard flooring is typically installed underneath wood, stone, carpet, and ceramic tiles to serve as a base for a wide selection of floor coverings. For the best result, we suggest installing P5 chipboard sheets with a combination of other humidity-resistant materials in the following applications: 

• Kitchens and bathroom floors 
• Domestic and commercial flooring applications
• Renovations and refurbishment projects
• P5 sheets can also accommodate hallway lino and bedroom carpet
• Suitable for any room of the house that would benefit from added protection against moisture 
• Suitable for general-purpose joinery such as cabinet making and internal fittings

18mm Chipboard Flooring Benefits

• Ideal for commercial and domestic floor insulation projects 
• Each standard 2400mm x 600mm chipboard sheet is easy to cut and install
• The tongue and groove edge slots into adjoining boards with ease
• Moisture-resistant design 
• Perfect for use in applications where moisture and high humidity might otherwise pose a problem
• Provides a reliable, sturdy surface for subsequent floor laying 
• Banish the worry of rot and rodents posing a threat to the structure of your home
• Can be easily veneered or decorated
• Homeowners can also expect acoustic properties from these boards, which can reduce the transmission of sound from one floor to another
• Comprises wood chips and resin, 

For further details, please refer to the manufacturer datasheets of each chipboard product.

P5 Chipboard Tongue & Groove Design 

P5 chipboard's tongue and groove (T&G) design is engineered for ease of installation and enhanced structural performance. The tongue and groove edges allow panels to interlock seamlessly, creating a tight, stable fit that minimises movement and ensures a smooth, continuous surface. 

This design is particularly advantageous for flooring applications, as it helps to distribute loads evenly across the floor and reduces the risk of gaps forming over time.

18mm Chipboard Flooring Installation

Where other construction materials require expensive adhesives, tools, and equipment, installing P5 flooring is simple.

We recommend using either screws or nails to secure the boards; you can even use wood screws. Screw the boards into the joists according to the joist variation. This, along with the interlaced edge, will create a long-lasting, secure bond.

18mm Chipboard Flooring Joist Spacing

When installing 18mm chipboard flooring, joist spacing is a critical factor in ensuring structural integrity and preventing deflection under load. 

For standard residential applications, joists are typically spaced at 400mm centres (measured from the centre of one joist to the centre of the next). This spacing provides adequate support for 18mm chipboard, ensuring it remains firm and stable over time.

Always consult the manufacturer's guidelines and adhere to building codes for best practices.

18mm Chipboard Flooring Weight

An 18mm thick, P5 chipboard flooring panel weighs approximately 18kg per standard-sized sheet (often 2440mm x 1220mm). This manageable weight makes it a practical choice for flooring installations, offering a balance of strength and ease of handling.