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Key Features
The Strength and Durability
25mm marine plywood is engineered for superior performance in humid, wet environments. The thick 25mm construction provides exceptional strength and moisture resistance, making it ideal for boatbuilding, outdoor structures, docks, trailer beds, and other heavy-duty applications.
Built to Resist Warping and Rotting
Unlike standard plywood, marine plywood retains its structural integrity when exposed to dampness over time. Its durable laminated hardwood veneers prevent swelling, cracking, and delamination.
Easy to Work With
25mm marine plywood can be cut and machined with standard power tools for DIY projects. The affordable cost provides a high-quality material without breaking your budget.
Applications
The 25mm thickness offers pronounced stability perfect for:
- Concrete forms
- Flooring and roofing
- Storage sheds
- Shelving and workbenches
- Exterior structures
For long-lasting performance in wet environments, choose 25mm marine plywood. Be sure to seal edges when using outdoors. Contact us to order your custom-cut marine plywood today.
We also offer birch plywood, hardwood plywood and softwood plywood.
Marine Ply Board Specifications
| Material | Plywood |
| Finish | Marine |
| Thickness | 25mm |
| Maximum Sheet Size | 2420mm x 1220mm |
| Minimum Sheet Size | 100mm x 50mm |
| Plywood Grade | BB/BB |
| Manufacturers Tolerances | +/- 10 % plus 0.4mm (e.g. 5mm cast sheet could vary from 4.1mm to 5.9mm) |
| Cutting Tolerances | +/- 1mm |
Frequently Asked Questions
What thickness of plywood do I need?
When deciding on the appropriate hardwood plywood thickness, consider the specific application to ensure optimal performance.
- For intricate crafts and hobby projects, a thinner option, such as 4mm plywood, is well-suited.
- If you're working on cabinet backs, a 6mm plywood sheet provides the necessary stability.
- For furniture construction and shelving projects, opt for either 9mm or 12mm plywood, depending on the specific load-bearing requirements.
- When durability is paramount, especially in applications like flooring, subfloors, or heavy-duty uses, it is advisable to select a sturdier option such as 18mm plywood.
Is marine plywood waterproof?
Marine plywood is not waterproof, however, it has a negligible core gap so that the likelihood of water getting trapped between the layers is minimised. This provides a strong and stable glue bond for extra strength.
How is marine plywood different from regular plywood?
Compared to standard plywood, marine plywood uses higher quality wood, more layers, has a more durable adhesive, and is designed to resist delaminating and warping when exposed to moisture over time. Regular plywood is not suitable for prolonged wet conditions.
What is the best way to seal marine plywood?
Since marine plywood is typically used around or in water, you’ll need to treat every surface of the wood with sealant. You can find a good waterproof penetrating epoxy to be ideal as it works deep into the wood, dries transparent, and requires less maintenance than other types of sealant.
Do you need marine-grade plywood?
We recommend marine-grade plywood around any instance where your sheet is going to be near water.
How long does marine plywood last?
When properly maintained, marine plywood can last over 25 years even with constant water exposure. Also, proper sealing and painting helps to extend its lifespan.
Is marine plywood treated with chemicals?
No, marine plywood is not chemically treated. It achieves its water resistance through the use of durable face and core veneers, resistant adhesives, and multiple laminated layers.
Delivery depends on the size of your order
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