Split your purchase of £9.65 into 3 with no sign-up fees or late fees.
£3.22
today
£3.22
1 month
£3.22
2 months
How it works
Choose PayPal at checkout to pay later with Pay in 3.
Complete your purchase with the first payment today.
Remaining payments are taken automatically.
Pay in 3 is a form of credit, so carefully consider whether the purchase is affordable and how you will make the repayments. Be aware of the possible impact of using Pay in 3 and of missing payments, including making other borrowing more difficult or more expensive. Pay in 3 eligibility is subject to status and approval. 18+ UK residents only. Available for purchases of £30 to £2,000. Terms and conditions apply. PayPal Pay in 3 is a trading name of PayPal (Europe) S.à r.l. et Cie, S.C.A. 22-24 Boulevard Royal L-2449, Luxembourg.
Get what you need for your next project, choose how you pay.
Pay in 30 days
£9.65
Pay in full
Klarna's Pay in 30 days is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
Pay over time
£3.22 Every 30 days
Pay in 3
£3.22
today
£3.22
in 30 days
£3.22
in 60 days
Klarna's Pay in 3 is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.
How it works
At checkout select Klarna.
Choose your payment plan.
Different payment plans may be shown depending on the purchase amount and credit score.
Complete your checkout.
The amount will be charged based on the payment plan you chose.
Split your purchase of £9.65 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
£2.41
today
£2.41
second payment
£2.41
third payment
£2.41
fourth payment
How it works
Choose Clearpay at checkout to pay later with Pay in 4.
Complete your purchase with the first payment today.
Remaining payments are taken automatically.
Clearpay is unregulated credit. Use responsibly. 18+, T&Cs and late fees apply at clearpay.co.uk/en-GB
Clearpay lends you a fixed amount of credit so you can pay for your purchase over 4 instalments, due every 2 weeks. Ensure you can make repayments on time. You must be 18+ and a permanent UK resident (excl Channel Islands). Clearpay charges a £6 late fee for each late instalment and a further £6 if it’s still unpaid 7 days later. Late fees are capped at £6 for orders under £24 and the lower of £24 or 25% of the order value for orders over £24. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay’s behalf. Clearpay is credit that is not regulated by the Financial Conduct Authority. T&Cs and other eligibility criteria apply at clearpay.co.uk/terms
Delivery charges vary by product category and order value. Items may ship from different suppliers and arrive separately, so delivery charges can be shown per part of your order at checkout.
Standard (Nationwide) Delivery
Core Products
Core
ORDER VALUE
DELIVERY CHARGE
Under £300
ex. VAT
£30
ex. VAT
Over £300
ex. VAT
FREE
Core Delivery charges apply only when all products in an order that have equivalents are accepted as such. If even one product cannot be substituted with an equivalent, the entire order will not qualify for Core Delivery charges.
Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE
DELIVERY CHARGE
Under
£300
£25
ex. VAT
Over
£300
ex. VAT
FREE
Express Delivery
Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
We work with a nationwide network of trusted suppliers. Items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you will see delivery charges shown at checkout for each part of your order. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery areas
Delivery charges apply to mainland UK, excluding: AB, CA, CF, DD, DG, EH, EX, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, PL, SA, SY, TR, TQ and TD.
If your address is in one of these areas, we will contact you before processing your order to confirm any additional costs. We do not currently offer delivery outside the UK mainland.
What to expect on delivery day
Deliveries are typically kerbside.
Please ensure someone is on-site to accept delivery. For heavier items, help with offloading may be required.
Many building materials arrive on large vehicles. If access is restricted, a specialist vehicle such as a HIAB may be required and could incur an additional charge.
Why delivery can cost more than typical parcel delivery
Building materials often travel on larger vehicles and usually carry fewer drops per run than parcel networks. That is why delivery charges can be higher than standard e-commerce shipping.
Returns
Returns depend on what you have bought and whether there is anything wrong with it. For full details on eligibility, timeframes, and exclusions, please see our full policy.
{{fitness_center}} Purposed for use in structural flooring applications
{{extension}} Tongue and groove edge slots into adjoining boards with ease
{{format_color_reset}} Moisture resistant
{{menu}} Reliable, sturdy surface for subsequent floor laying
Technical Specification
Technical Specification
URN:
4005001
Application:
Floors & lofts
Indoor/Outdoor Usage:
Indoor
Thickness:
18mm
Width:
600mm
Length:
2400mm
Weight:
18kg
Sales Unit:
Sheet
Sales Unit Coverage:
1.44m2
Moisture Resistant:
Yes
Grade:
P5
Wood Species:
Spruce
Edge:
Tongue & Groove
Bond Class:
BS EN312
Finish:
Sanded
Formaldehyde Level:
E1 (low)
Country of Origin:
UK
Product Overview
18mm P5 Moisture Resistant Chipboard Flooring measuring 2400mm x 600mm. This high-density particleboard is engineered specifically for structural flooring applications where increased humidity or incidental moisture may occur. The panels feature precision-machined tongue-and-groove profiles on all four edges, enabling an interlocking "floating" or fixed deck that significantly reduces the risk of independent board movement and surface squeaking.
At a 18mm thickness, these boards provide a robust load-bearing sub-base suitable for domestic renovations, loft conversions, and overlaying existing uneven timber floors. The P5 classification ensures superior dimensional stability and structural integrity compared to standard P2 grades, resisting the swelling and degradation typically caused by moisture ingress during the construction phase. The 600mm width is specifically designed for ease of handling in confined spaces, such as attics or narrow corridors, while ensuring the structural integrity of the floor at a thickness of 18mm.
For projects requiring a different material composition with similar structural capabilities, 18mm OSB 3 Tongue & Groove Flooring is a suitable alternative.
Features & Benefits
P5 moisture-resistant grade: Certified to EN 312 for load-bearing use in humid internal conditions, including kitchens and bathrooms.
High-density particleboard: Engineered construction provides high compressive strength and resistance to structural weakening from moisture.
Tongue-and-groove profiles: Precision-fit edges on all four sides ensure a secure, interlocking joint that minimises vertical movement between panels.
Sanded surface finish: Provides a smooth, level face that is ready for the direct application of underlays, carpets, or laminate flooring.
Enhanced workability: The board composition allows for clean cuts and secure fastener retention when using standard woodworking tools.
2400mm x 600mm dimensions: Optimised for rapid coverage and easy manual handling through standard doorways and up staircases.
Structural 18mm thickness: Designed for installation over joists at 400mm centres or as a high-strength overlay for existing floor structures.
Applications
Domestic structural flooring: 18mm profile serves as the primary load-bearing sub-floor for bedrooms and living areas with joist centres up to 400mm.
Kitchen and bathroom sub-floors: P5 moisture-resistant classification prevents dimensional instability in humid environments when joints are correctly glued.
Loft conversions: Lightweight 18mm boards provide a durable structural surface for transforming attic spaces into habitable rooms.
Floor overlays and levelling: Used to provide a flat, stable foundation over existing floorboards in refurbishment projects before laying final floor coverings.
Temporary site walkways: Provides a robust, slip-resistant surface for protected pedestrian access during internal construction phases.
Installation Guidance
Acclimatise the boards: Store panels flat in the room of installation for 48 hours to equalise moisture content with the surrounding environment.
Check joist spacing: Ensure joists are level and spaced at maximum 400mm centres for 18mm boards to prevent excessive deflection under load.
Apply joint adhesive: Run a continuous bead of D3 or D4 grade moisture-resistant PVA glue along both the tongue and the groove to create a silent, waterproof bond.
Stagger the joints: Lay boards in a staggered "broken bond" pattern, ensuring that short-end joints always fall directly over a supporting joist.
Maintain expansion gaps: Leave a minimum 10mm to 12mm expansion gap around the entire perimeter of the room and at all rigid obstructions like radiator pipes.
Fixing intervals: Secure boards using ring-shank nails or carcass screws at 200mm intervals along supported edges and 300mm on intermediate joists.
Countersink fasteners: Ensure all screw or nail heads are driven 2mm below the surface to prevent "grinning" through the final floor covering.
Seal perimeter edges: Treat all field-cut edges with a suitable wood sealant if they are likely to be exposed to moisture near plumbing or external doorways.
Compliance & Performance
Standard classification: EN 312 P5 moisture-resistant, structural grade particleboard for internal use.
Service class: Rated for Service Class 1 (dry) and Service Class 2 (humid) environments.
Fire rating: Standard Euroclass D performance; can be enhanced with appropriate fire-retardant treatments or underlays.
Environmental status: E1 formaldehyde emission compliant for safe use in domestic and commercial interior living spaces.
Important note: While P5 grade is moisture-resistant, it is not waterproof; all standing water must be removed immediately to prevent long-term thickness swelling.
Yes. It is treated to withstand high humidity and occasional dampness. However, it is not waterproof.
What is the difference between P5 and standard chipboard?
- P5 Chipboard: This is moisture-resistant and specifically designed for structural use in humid areas like kitchens and bathrooms.
- Standard Chipboard (P2): This is for general purpose use in dry, indoor conditions only (like furniture or shelving). It will swell, weaken, and eventually crumble if it gets wet or is used in a damp environment.
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