9mm Exterior Grade Class 3 Plywood 2440mm x 1220mm (8′ x 4′)
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£36.20 Original price was: £36.20.£32.61Current 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 1215 reviews Posted on JosephTrustindex verifies that the original source of the review is Google. Used this company for PIR board. I realised I ordered too many. Customer service from James was top tier in sorting the amendment of the delivery in a very timely and with short notice! Would recommend and use again!Posted on Joshua CainTrustindex verifies that the original source of the review is Google. Great experience with trade insulations. From ordering to delivery, everything was straightforward and arrived on time. Even communication afterwards, checking that everything was ok was very good. I will Definitely be using trade insulations for future projects.Posted on william magillTrustindex verifies that the original source of the review is Google. I recently placed a large order and had an excellent experience. The load arrived as advised and the delivery driver was both charming and helpful. I highly recommend.Posted on Max Graystone-LeeTrustindex verifies that the original source of the review is Google. Cheapest I could find for what I needed and fast deliveryPosted on DPA Home RenovationsTrustindex verifies that the original source of the review is Google. We have been purchasing insulation materials from Trade Insulations Ltd for a couple of years and their service has consistently been outstanding. They stock a wide range of insulation products, give knowledgeable and friendly advice, and always ensure quick delivery. Their customer service is first-class and very dependable. I would highly recommend them to any construction or refurbishment businessPosted on yotam levyTrustindex verifies that the original source of the review is Google. Great service, fast delivery, professional drivers - would recommendedPosted on Chris FieldTrustindex verifies that the original source of the review is Google. Delivery driver was very helpful and considerate. Everything was as it should be.Posted on stephanie “Stephanie92” newlandTrustindex verifies that the original source of the review is Google. Delivery within 3 days and great price !Posted on Jim BobinskiTrustindex verifies that the original source of the review is Google. Fantastic service 👍 good company, prices and prompt delivery
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.

Omar –
basic but let us get the job done no issues
Connor –
use Trade Group for my timber and insulation – good company and good service
Willow –
The plywood was solid, and there was no noticeable difference in the grain or thickness between sheets.
Charles –
I’ve used this plywood for various custom carpentry projects and it’s been excellent.