12mm Ply for Construction, Furniture & DIY

12mm ply is a popular choice across construction, joinery, furniture making, fabrication and DIY. Its relatively high strength-to-weight ratio and layered construction make it a practical sheet material for projects where rigidity and dimensional stability are important.

The most suitable 12mm plywood depends on the environment and the finish required. Hardwood plywood is a versatile option for general projects, while birch plywood is often selected where appearance, consistency and machining characteristics are important.

For more demanding moisture-prone or exterior applications, 12mm marine plywood can provide a higher-specification option. For temporary formwork and construction work, 12mm shuttering plywood is designed specifically for that type of application.

What does 12mm plywood mean?

12mm plywood refers to plywood manufactured to an overall nominal thickness of approximately 12mm. The sheet is constructed from multiple layers of wood veneer bonded together, with the grain direction generally alternating between adjacent layers.

The terms 12mm ply and 12mm plywood are simply two common ways of referring to the same type of sheet material. When searching for 12mm ply sheets, you will therefore find the same plywood products described using both terms.

12mm plywood for exterior and moisture-prone applications

Not all plywood is suitable for exterior use. The grade, adhesive classification and construction of the sheet should be considered before selecting plywood for a project exposed to moisture.

Our 12mm marine plywood complies with BS1088 and is designed for demanding applications. However, marine plywood should not simply be assumed to be completely waterproof in every situation. Exposed edges should be appropriately sealed and protected where required.

The BSI information on plywood specifications provides further information on plywood classification and performance requirements.

12mm plywood for furniture and fabrication

12mm plywood is also widely used for furniture, shelving, storage, cabinetry, fabrication and workshop projects. Birch plywood is particularly popular where a clean, consistent appearance is required, while hardwood plywood provides a practical general-purpose solution.