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9mm Exterior Grade Class 3 Plywood 2440mm x 1220mm (8′ x 4′)

Name: 9mm Exterior Grade Class 3 Plywood 2440mm x 1220mm (8' x 4') - Trade Timber
SKU: EGCP-9mm-2440x1220
Price: 32.61 GBP
Availability: InStock
Rating: 4.88 (8 reviews)

Rated 4.88 out of 5 based on 8 customer ratings

(8 customer reviews)

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✓In Stock

Original price was: £36.20.Current price is: £32.61. ex VAT

This exceptional hardwood plywood is specifically designed for exterior applications, offering superior performance in challenging outdoor environments. Classified under bond class 3, it surpasses standard class 2 plywoods in terms of weatherproof properties and durability.

      EXCELLENT  
   Based on 1390 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Ciaran “Reaper616” Ford 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great retailer. Got my insulation for my home projects way cheaper than others and delivery was great and as planned. Lee was great. Highly recommended.
  
 
      Posted on Google  
   
   Caroline Williams 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. My order as delivered promptly and the delivery guy was very helpful.
  
 
      Posted on Google  
   
   Leanne Joel 
 
 
 
 Trustindex verifies that the original source of the review is Google. I ordered 18 of the 40mm Soprema  PIR Insulation Boards (1200 x 2400mm), and I couldn’t be happier with the service.

Delivery was super fast, and everything was delivered with great care. The online ordering process was easy and straightforward, and the communication afterwards was absolutely fantastic.

I honestly cannot fault anything. Excellent service, great communication and a smooth, hassle-free experience from beginning to end.

Highly recommended! I would definitely order from them again.
  
 
      Posted on Google  
   
   Ivan Georgiev 
 
 
 
 Trustindex verifies that the original source of the review is Google. I've ordered the insulation got it next week spot on delivery great service
  
 
      Posted on Google  
   
   Mark Epton 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service used a few times now and always great service and quality products will be using again and definitely will recommend
  
 
      Posted on Google  
   
   Andy Fisher 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding service from Trade Insulations. Ordered Rockwool slabs for a floor/ceiling project, and the delivery was bang on schedule.
The insulation density is so impressive I’m tempted to line my entire life with it. James messaged to check in on the delivery, proving they care as much about customer satisfaction as they do about acoustic decibel reduction. Absolute legends. Don't bother looking anywhere else
  
 
      Posted on Google  
   
   Lucas Bouvier 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick shipping and good product
  
 
      Posted on Google  
   
   puppy jack russell sebas 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really good prices and fast delivery
  
 
      Posted on Google  
   
   Ben Farrow 
 
 
 
 Trustindex verifies that the original source of the review is Google. Phoebe was super helpful, will definitely use again.

Description
Reviews (8)

This 9mm exterior grade 3 plywood is a cost effective yet versatile sheet material. It can be used for a wide range of building and outdoor applications.

It is crafted from premium hardwood, which is designed to withstand some exposure to the elements. This plywood combines strength and reliability without stepping up to a fully structural marine grade board.

The dimensions of this plywood is 2440mm x 1220mm and is easy to handle and install. It is 9mm in thickness and provides good rigidity for both light structural and non-structural uses.

9mm Exterior Grade Class 3 Plywood Key Features

9mm thickness
2440mm x 1220mm (8′ x 4′) full sheet size
Class 3 exterior bond (moisture resistant)
Suitable for humid and sheltered external environments
Easy to cut, fix and install

Plywood Applications

This plywood board can be used in many different applications, which includes:

Shed walls and roofs
External cladding (when properly treated and sealed)
Hoardings and site boarding
Flooring overlays
General DIY and trade projects

For the optimal performance in external applicatons, the edges and faces should be adequately sealed after cutting.

This grade 3 plywood is perfect for both trade and DIY projects.

8 reviews for 9mm Exterior Grade Class 3 Plywood 2440mm x 1220mm (8′ x 4′)

zach – October 11, 2026
Rated 5 out of 5
Worked perfectly on our pergola project and were really happy with how the finished job looks. Will be ordering more for other jobs soon!
Arjun – June 15, 2026
Rated 5 out of 5
service was efficient and friendly
Florence – June 8, 2026
Rated 5 out of 5
used outside and held up well so far
Rory – May 3, 2026
Rated 5 out of 5
used outside temporarily and held up better than expected
Omar – April 24, 2026
Rated 5 out of 5
basic but let us get the job done no issues
Connor – February 5, 2026
Rated 5 out of 5
use Trade Group for my timber and insulation – good company and good service
Willow – December 30, 2024
Rated 4 out of 5
The plywood was solid, and there was no noticeable difference in the grain or thickness between sheets.
Charles – August 10, 2024
Rated 5 out of 5
I’ve used this plywood for various custom carpentry projects and it’s been excellent.