18mm Exterior Grade Class 3 Hardwood Plywood 2440mm x 1220mm (8' x 4')
| 18+ sheets | 22+ sheets | 30+ sheets |
| £44.62ex. VAT | £43.70ex. VAT | £41.40ex. VAT |
Coverage required
Nationwide Delivery
Mon 29 Jun
- 0days
- 11hrs
- 39mins
- 35secs
lock Secure checkout (powered by Stripe)
Learn more
Pay in 3 interest-free payments
Split your purchase of £46.00 into 3 with no sign-up fees or late fees.
£15.33
today
£15.33
1 month
£15.33
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.
Learn more
Buy now. Pay with Klarna at your own pace.
Get what you need for your next project, choose how you pay.
Pay in 30 days
£46.00
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
£15.33
Every 30 days
Pay in 3
£15.33
today
£15.33
in 30 days
£15.33
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.
Learn more
Pay in 4 interest-free payments
Split your purchase of £46.00 into 4 with no sign-up fees or late fees. Your purchase will be split into 4 payments, payable every 2 weeks
£11.50
today
£11.50
second payment
£11.50
third payment
£11.50
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
Key Features
- {{thunderstorm}} Exterior-grade hardwood plywood for outdoor use
- {{fitness_center}} Moisture, weathering, and fungal resistance
- {{checklist}} Wide application range
- {{texture}} Smooth surface
Technical Specification
| URN: | 4002064 |
|---|---|
| Product: | Exterior Grade |
| Application: | Floors, roofs, walls, hoardings, temporary protection |
| Indoor/Outdoor Usage: | Exterior |
| Material Type: | Hardwood |
| Thickness: | 18mm |
| Width: | 1220mm |
| Length: | 2440mm |
| Weight: | 33kg |
| Sales Unit: | Sheet |
| Sales Unit Coverage: | 2.98m2 |
| Moisture Resistant: | No |
| Edge: | Square |
| Bond Class: | BS EN636-3 (Class 3) |
| Finish: | Veneer |
| Formaldehyde Level: | E1 (low) |
Product Overview
Exterior Grade Class 3 Hardwood Plywood with an 18mm thickness. A premium, high-performance sheet material designed for outdoor and high-moisture environments.
Manufactured from selected hardwood veneers and bonded with a Class 3 weather- and boil-proof adhesive, it provides exceptional durability, dimensional stability, and resistance to fungal decay. This plywood maintains structural integrity under prolonged exposure to moisture and fluctuating weather conditions, making it ideal for demanding exterior and semi-exposed applications.
The smooth, even surface accepts paints, stains, and protective coatings, ensuring both functionality and aesthetic quality. The 18mm board thickness offers strength and rigidity suitable for a wide range of structural and general-purpose uses.
Features & Benefits
- Exterior-grade construction: Engineered with Class 3 adhesive for superior resistance to weather and humidity.
- High-strength hardwood core: Provides outstanding mechanical performance and dimensional stability.
- Weatherproof durability: Withstands continuous exposure to moisture without swelling, delaminating, or warping.
- Smooth surface finish: Ideal for paint, stain, or laminate applications where a clean, uniform appearance is required.
- Fungal and moisture resistance: Prevents decay and surface degradation in damp or outdoor conditions.
- Multi-purpose performance: Suitable for both load-bearing and non-structural installations in construction and joinery.
- Board thickness 18mm: Delivers a balance of rigidity and manageable weight for wide-ranging site and workshop applications.
Applications
- Flooring: Provides a robust and moisture-resistant base for both permanent and temporary floor structures.
- Roof decking: Suitable for exterior roof systems requiring strong and weatherproof sheeting.
- Wall sheathing: Ideal for external wall linings or cladding substrates exposed to intermittent weathering.
- Site hoardings: Reliable choice for durable, reusable site barriers and screening panels.
- Temporary protection: Effective for safeguarding floors and structures during construction or refurbishment.
Installation Guidance
- Panel conditioning: Allow sheets to acclimatise to site temperature and humidity before installation.
- Fixing method: Secure with corrosion-resistant screws or nails at recommended centres for exterior-grade boards.
- Joint spacing: Leave small expansion gaps between sheets to accommodate natural timber movement.
- Edge treatment: Seal cut edges and faces with a waterproof coating or paint for extended durability.
- Surface finishing: Apply appropriate protective or decorative finishes depending on exposure level and application.
Compliance & Performance
- Material specification: Multi-ply hardwood veneers bonded with Class 3 (EN 314-2) weather and boil-proof adhesive.
- Durability rating: Certified for exterior use under EN 636 Class 3 performance standards.
- Weather and moisture resistance: Suitable for continuous exposure to outdoor conditions.
- Fungal resistance: Designed to prevent biological degradation under damp or humid environments.
- Important note: Ensure all edges and penetrations are sealed to maintain full exterior-grade performance.
Delivery & Returns Information
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
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £20 ex. VAT |
| Over £300 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £90 ex. VAT |
| Over £400 ex. VAT | £55 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
How delivery works
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.
Customer Reviews
Leave a Review
Related Articles
Waterproofing Plywood
Is OSB Stronger Than Plywood? An Examination
How To Build a Shed
