12mm Marine Plywood BS1088 2440mm x 1220mm (8' x 4')

Colour and finish are representative only and may vary slightly as this is a natural product. Marine Plywood is made from solid veneer wood, meaning the finished surface gives a wooden appearance. Therefore, images may vary slightly from delivered products due to the natural variation in colour and grain. 

What is 12mm Marine Plywood?

12mm marine plywood is a specialised type of plywood engineered to resist humid and wet conditions, making it ideal for marine environments and other applications where moisture exposure is a concern.

Unlike regular plywood, 12mm marine plywood sheets are made with waterproof glue and are much less likely to swell or delaminate when exposed to moisture. As the name suggests, 12mm marine plywood is extensively used in the construction of boats and other marine vessels. Its water-resistant properties make it an ideal material for hulls, decks, and other components exposed to water. 

While designed for marine use, 12mm marine plywood also performs exceptionally well in various construction applications where strength and stability are critical, such as flooring, roofing, and wall installations.

However, it is important to note that the sheets are not chemically treated, meaning they are neither fully rot-resistant nor completely waterproof. 12mm marine sheets should receive a thorough coating of high-quality waterproof sealants, such as epoxy or polyurethane, to enhance their resistance to water intrusion and decay. 

Edges, often the most vulnerable areas, should be especially well-treated to prevent delamination or swelling caused by prolonged exposure to moisture. Additionally, regular maintenance, such as reapplying sealant and inspecting for any damage, is crucial to ensure long-term durability and performance in demanding marine environments. 

Applications

Marine plywood 12mm delivers excellent results in a wide range of interior applications and exterior applications. Fit for structural use, it can be relied upon in flooring, roofing, wall and external joinery in the following applications: 

• Shopfitting
• Storage boxes
• Bathrooms
• Sheds
• Walkways
• Kitchens
• Patios
• Indoor vehicle storage areas
• Roof supports
• Temporary structures 
• Cold frames

If used for an aesthetic application such as shelving, we suggest sanding and adding a layer of varnish to enhance its overall appearance.

Benefits

• Moisture resistant - specifically designed to retain its integrity when in contact with water 
• Conforms to BS1088 (the British standard specification for Marine Plywood)
• Manufactured from wood species that boast natural resistance to rot, decay and fungal attack 
• High quality face and core veneers
• Interior and exterior hardwood plywood board
• Suitable for flooring, roofing and wall applications
• Holds laminate, paint and polish well
• Pliable design - can bend without cracking or comprising structural integrity
• Offers superior impact resistance
• Lack of voids and holes makes the product more structurally sound 
  
  

Moisture Resistance

Marine-grade 12mm plywood is crafted from highly durable timber species that boast exceptional resistance to decay in water-based environments. 12mm marine sheet's structural integrity and superior moisture resistance make it a top choice for boat-building industries and marine insurers alike. Renowned for its unparalleled weatherproof qualities, this plywood delivers outstanding performance in wet conditions, even over extended periods.

While naturally resistant to moisture, you can easily increase the service life of marine plywood by sealing both the edges and faces of the sheets.

12mm Marine Grade Plywood Size

Marine plywood 12mm comes in a 2440mm x 1220mm x 12mm sheet, giving a square metre size of roughly 2.98m2. 

Manufacturing Process

Unlike standard plywood, which is typically composed of thin layers of softwood or hardwood, 12mm Marine Ply is crafted through a specialised process called cross-graining. In this technique, each layer is rotated up to 90 degrees relative to the adjacent one, and multiple layers of water-resistant tropical hardwood are bonded together with waterproof adhesive. This method enhances strength, prevents warping, and ensures exceptional stability.

Unlike standard plywood, 12mm marine plywood is free of air pockets and core voids, reducing the likelihood of water getting trapped between the layers. If you were to slice through a sheet of regular plywood, you'd be able to spot holes and voids within the layers. In avoiding these holes, marine plywood boasts greater structural integrity and rot-resistant qualities, making it suitable for demanding requirements where the board is likely to be exposed to the elements. 

Both the quality and lay-up of the sheet's veneers render 12mm marine plywood an extremely robust and resilient product.

How To Cut 12mm Marine Plywood 

Despite its strength, cutting 12mm marine plywood is anything but difficult. Simply cut it to size with a jigsaw and cut along the grain lines to achieve a smoother cut.