Description
Quick answer: Hardwood WBP plywood supplied as full 2440 × 1220mm (8 × 4ft) sheets from 3.6mm to 25mm. Choose 3.6mm or 5.5mm for lightweight lining, backing and general sheet work, or 9mm–25mm for structural building applications where the declared specification suits the project.
Need plywood cut to size? Tick “Need It Cut To Size?”, enter your measurements, then add the sheet to your cart. You are purchasing the full sheet; full sheet price applies and we cut that sheet to the sizes you enter.
Choose the right hardwood plywood thickness
| Thickness | Typical choice |
|---|---|
| 3.6mm | Lightweight lining, templates, backing panels and general sheet work. |
| 5.5mm | Lining, backing, boxing-in and lightweight general-purpose projects. |
| 9mm | Light structural applications, wall lining and supported construction work where the specification suits. |
| 12mm | General construction, wall lining, sheds, outbuildings and supported structural applications. |
| 15mm | Construction work needing a stiffer sheet, including roof decks and wall lining where suitable. |
| 18mm | Flooring, subfloors, roof decks, storage areas and projects needing extra stiffness. |
| 25mm | Heavy-duty construction, platforms and thicker structural build-ups. |
Structural hardwood plywood from 9mm to 25mm
The 9mm, 12mm, 15mm, 18mm and 25mm options are the structural choices within this range. They are used for building and construction work where the board specification, thickness, span, support spacing and fixing pattern suit the project.
This plywood is classified to EN 314-2 Bonding Class 2 and EN 636. Class 2 is designed for high-humidity conditions. Where a project specifies a different bond or use class, match the plywood to that declared requirement.
3.6mm and 5.5mm hardwood plywood
The thinner 3.6mm and 5.5mm options are useful for lightweight lining, backing, templates, boxing-in and other general-purpose sheet work. Keeping them within the same range makes it easier to buy the thickness you need without jumping between separate products.
What does WBP plywood mean?
WBP plywood is still common buying language for plywood associated with weather-resistant glue bonds. Modern project selection is better based on the board’s declared EN classifications, so we show the current EN 314-2 Class 2 and EN 636 information alongside the familiar WBP wording.
Structural or general-purpose hardwood plywood?
Choose this range when you need the broader 3.6–25mm thickness choice and structural options from 9mm upwards. For interior cabinets, shelving, furniture and joinery in 12mm or 18mm, compare our General Purpose Hardwood Plywood Sheets.
For other plywood types, browse our Plywood Sheets range.