18mm Hardwood External Grade Plywood 2440mm x 1220mm (8′ x 4′)

SKU: IW8155
Brand: Alphaply

18mm Hardwood External Grade Plywood is a type of plywood designed explicitly for outdoor use in construction. Hardwood External Grade Plywood is recognised for its moisture resistance, decay, and insect damage, making it popular in outdoor applications such as roofing, cladding, and fencing.

Manufacturer Model No: Hardwood Plywood
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Thickness: 18mm
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£21.28£25.54 Ex VATInc VAT

In Stock

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£21.28£25.54 £20.22£24.26
Lead Time: 2-5 days

The average delivery lead time for the majority of orders is 2-5 working days from the date of your order, however, it could extend to 5 working days on rare occasions. Once the order has been placed, a member of staff will then be in contact to confirm a delivery date.

The following delivery fees apply to green delivery area.

  • Order between £0.01 - £249.99 ex VAT subjected to a delivery charge £90 ex VAT.
  • Order value between £250 £549.99 ex VAT delivery charge £50 ex VAT.
  • Free delivery is available for orders above £550.00 ex VAT to the green areas on the map.
Delivery map
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Delivery lead times for orders outside our standard delivery may take up to 7 working days. If you are outside our standard green delivery area, please click on the “Save & Share cart” button at the cart stage, select the email option and send it to [email protected] or call us on 0203 318 7316. We will get back with a delivery quote to you shortly.

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18mm Hardwood External Grade Plywood is a type of plywood designed explicitly for outdoor use in construction. Hardwood External Grade Plywood is recognised for its moisture resistance, decay, and insect damage, making it popular in outdoor applications such as roofing, cladding, and fencing.

  • Additional information

    Brand Alphaply
    Application

    Floor, Roof, Walls

    Edging

    Square

    Length

    2440mm

    Width

    1220mm

    Thickness

    18mm

    Manufacturer Model No

    Hardwood Plywood

  • Questions and answers of the customers

      Is this class 2 or class 3 grade?
    1. 0 votes
      Q Is this class 2 or class 3 grade? answer now
      Asked by Tom Matthews on 26 August 2025 9:14 am
      A

      Hey Tom, thank you for your question.

      Our Hardwood Plywood is a Class 2. 

      Our Softwood Plywood is a Class 3.

    Send me a notification for each new answer.
  • Why our customers don’t switch

    Most of our orders come from customers who’ve bought before. Here’s why they keep coming back, drawn straight from their reviews.

    Customer service
    Knowledgeable staff, always happy to help
    Delivery speed
    Fast and reliable
    Product range
    Widest range, incl. hard-to-find insulation types kept in stock
    Trade accounts
    Buy now, pay later option
    Bespoke supply
    Sourcing materials to order at a competitive price
    Quantity calculation
    Free help working out exact quantities, less waste
    Wholesale prices
    Competitive trade pricing for all customers
    Free delivery available
    On orders over £550+VAT
    Open to business & public
    Anyone can order, trade and public alike, no account needed
    Rated excellent

    With thousands of successfully completed deliveries to building sites and our customers’ homes, we’re trusted to deliver the right product at the right price, on time — backed by a dedicated customer support team.

    We have 3 stores offering Brick, Sheet Materials and Insulation, with access to 1000s of product lines.
    Across all three stores we’ve delivered 100,000+ orders to happy customers since 2019.