SKU: 74209323545

P5 Tongue and Groove Chipboard Flooring 22mm x 600mm x 2400mm

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Description

P5 Tongue and Groove Chipboard Flooring 22mm x 600mm x 2400mmP5 tongue and groove chipboard flooring is a moisture resistant structural panel board manufactured to EN 312 P5 standards, designed for use as a walking deck over timber joists on upper floors, ground floors, and loft conversions. Available in 18mm and 22mm thicknesses in 600mm x 2400mm sheets. Specifications Material Chipboard (particle board) Grade P5 to EN 312 Treatment Moisture resistant binder throughout Profile Tongue and groove on long edges

P5 tongue and groove chipboard flooring is a moisture-resistant structural panel board manufactured to EN 312 P5 standards, designed for use as a walking deck over timber joists on upper floors, ground floors, and loft conversions. Available in 18mm and 22mm thicknesses in 600mm x 2400mm sheets.

Specifications

Material Chipboard (particle board)
Grade P5 to EN 312
Treatment Moisture-resistant binder throughout
Profile Tongue and groove on long edges
Nominal Size (18mm) 18mm x 600mm x 2400mm
Nominal Size (22mm) 22mm x 600mm x 2400mm
Finish Sanded face

What it's used for

  • Upper floor decking laid over timber joists in new-build and renovation projects
  • Loft conversions where a solid, load-bearing floor deck is required
  • Ground floor construction over joists where moisture during build is a concern
  • Mezzanine floors and timber frame construction requiring a structural walking surface

Fitting and handling

Store boards flat and off the ground, under cover, before installation to prevent moisture uptake from the slab or ground beneath. Apply PVA or flooring adhesive to the tongue and groove joint before tapping boards together, then fix through the face or secret-nail through the tongue at each joist, using ring-shank nails or screws at no more than 300mm centres. Leave a 10mm expansion gap around the perimeter of the room before laying any finished floor covering such as carpet, laminate, or vinyl.

FAQ

What is the difference between P5 and standard chipboard flooring?

P5 chipboard is manufactured with a moisture-resistant resin binder, making it significantly more tolerant of site moisture during construction than standard P4 or plain chipboard. It is less likely to swell at the edges if exposed to temporary dampness, though it is not waterproof and should not be left permanently wet.

Should I use 18mm or 22mm P5 chipboard for my floor?

For most domestic upper floors with joists at 450mm centres, 18mm is generally sufficient. Where joists are at 600mm centres, or where the floor will carry heavier loads such as in a loft conversion used as a habitable room, 22mm is the recommended choice for additional stiffness and load distribution.

Can P5 chipboard flooring be used in a loft conversion?

Yes. P5 tongue and groove chipboard is widely used in loft conversions across the UK as the structural floor deck. The interlocking T&G profile spreads loads across adjoining boards and reduces squeaking over time, making it well suited to habitable loft rooms. Always check that your joist sizing and spacing meet building regulations for the intended use.

Nottage Timber Merchants supply P5 tongue and groove chipboard flooring from stock in Bridgend, South Wales, with next-day delivery available across South Wales. For additional boarding products, browse our full range of subfloor and loft boards. Trade quantities and cut-to-order enquiries welcome, call us direct.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74209323545

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Tanner Pence
Fort Morgan, US
★★★★★ 5
Great quality
Color: Purple, Color: Purple
My dog loves to chew and this toy is indestructible! She loves it!
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Reviewed in the United States on June 10, 2026
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D. Rodriguez
Birmingham, US
★★★★★ 5
Finally, a ball that made it!
Color: Blue, Color: Blue
I don’t know what is it with this ball, but it’s special. My dogs can absolutely tear up anything and this one seems like it can be chewed up but my dog loves it too much. He carries it all day, nibbles it and loves the squeaky sound of course. Finally found a winner!
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Reviewed in the United States on May 20, 2026
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Renae
Massapequa, US
★★★★★ 5
Good size ball for my big boy
Color: Purple
My big boy loves this ball. He chews and chews and chews on it and it ain't made a dent in it. It's made a good quality rubber. It's got a squeaker in it. He hasn't managed to get it out which is not normal because normally he can get a squeaky out within 10 minutes. He goes through toys like I don't know what so it's being being a good. Really good ball. We've had it for about 2-3 months now and he hasn't been able to break into it and get squeaky out or even make a dent into it. That would tear up the the rubber
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Reviewed in the United States on June 1, 2026
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coach316dc
Port Orchard, US
★★★★★ 5
Sturdy ball, holding up well.
Color: Purple
I have a ball obsessed Shih Tzu. This has become his security blanket. He literally takes it everywhere and even sleeps with it next to him. Dexter loves any ball. All shapes and sizes. He will play fetch all day long if you let him. He doesn't know when to quit. It can be 100 degrees out with 80% humidity and he'll fetch all day long. This is a larger ball, I think just over 3 inches. It is entirely too big for a Shih Tzu, but it is perfect for Dexter. He came to us with a ball similar to this that he has since lost. He carries it in his mouth by placing his incisors in the indentations and lets it hang out the side of his mouth. Quite comical actually, but it works for him. We have bought him balls more for his size, but they're too small and he gets them lost under cabinets, furniture or any nook and cranny the ball will fit. And being obsessive, he will bark and carry on because he can't get to the ball until you come and rescue it. Difficult on our old knees. So he ends up getting the smaller balls taken away from him. The other night he was laying and chewing on this ball. It sounded like he was shredding this ball to pieces. I was afraid he would choke or swallow the rubber pieces, so I took it away from him. There wasn't anything wrong with the ball. It looked brand new. No chew or bite marks that I could see. I was impressed. It does have a squeaker, but I can barely get it to squeak and I have strong hands. A larger dog with a stronger bite force could probably easily make it squeak. It claims to have a beef scent to the toy, and maybe that is why he likes the ball so much. But I sniffed it and couldn't smell anything, which is fine by me, it won't have an obnoxious smell to where I don't want it around me.
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Reviewed in the United States on December 7, 2025
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T W
Grantham, US
★★★★★ 5
Dogs love balls
Color: Orange
Most dogs love to play with balls. This is a ball. It squeaks and can handle a lot of strong chewing. Quite durable and a good size for medium and up sized dogs. (Honestly even smaller dogs would have fun with this).
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Reviewed in the United States on April 23, 2026

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