Single Sheets

4mm - 25mm | 8ft x 4ft - 2ft x 1ft

Bulk Packs

4mm - 25mm | 8ft x 4ft

Marine Plywood 

Shop high-quality marine plywood boards designed for projects where strength, durability and moisture resistance are essential. Manufactured from durable hardwood veneers and water-resistant adhesives, our marine plywood sheets deliver reliable performance in demanding interior and exterior applications.

Marine plywood offers excellent structural stability and a smooth, versatile surface that can be cut, drilled, sanded, painted, stained or varnished. It is a popular choice for boatbuilding, bathroom furniture, outdoor joinery, kitchens, utility areas, and other projects exposed to damp or humid conditions.

Key Features

  • Strong, durable and dimensionally stable
  • Excellent resistance to moisture and humidity
  • Manufactured with high-quality bonded veneers
  • Smooth surface suitable for painting, staining or varnishing
  • Easy to cut, drill, shape and machine
  • Available in a range of sheet sizes and thicknesses
  • Suitable for professional tradespeople and DIY projects

Common Uses

Our marine plywood boards are ideal for:

  • Boat building and marine joinery
  • Bathroom furniture and fittings
  • Kitchen units and utility rooms
  • Outdoor furniture and storage
  • Exterior joinery and construction
  • Wall panels, flooring and partitions
  • Garages, workshops and humid environments
  • General woodworking projects requiring moisture-resistant plywood

Choose our marine-grade plywood boards and sheets for a dependable combination of strength, versatility and moisture-resistant performance.

For long-term exterior or marine use, all faces, cut edges and fixing points should be properly sealed and maintained with a suitable protective finish.

Please note that natural variations in grain, colour and surface appearance may occur between sheets.

Why buy from Buildersmerchant.com?

✓ Trade prices on bulk orders
✓ EN636-2 structural grade certified
✓ Full compliance with UK building regulations
✓ Next-day delivery available ✓ Cutting service offered

Get a Quote Today

Stock available for immediate dispatch. Single sheets or project packs – we supply it all.

Other Plywood Products

  • Guaranteed Quality

    we ensure the highest standards for all our construction materials. Our products undergo rigorous testing to guarantee durability and reliability, so you can build with confidence.

  • Affordable

    Building your dream project doesn't have to break the bank. We offer competitive pricing on a wide range of construction materials, ensuring you get the best value for your investment.

  • Fast Delivery

    Need your materials in a hurry? We offer fast and efficient delivery services, including local delivery to select postcodes. Get your supplies when you need them, right to your doorstep.

Frequently Asked Questions

Is marine plywood completely waterproof?

 Yes – marine plywood uses waterproof phenolic adhesives and water-resistant outer veneers. Unlike standard plywood, it's engineered for constant moisture exposure and won't delaminate when wet. Perfect for permanent water contact applications.

How strong is marine plywood?

 Extremely strong. The high-density multi-layer construction creates exceptional structural stability. The hardwood core and cross-bonded grain pattern deliver superior load-bearing capacity compared to standard exterior plywood.

Can I use marine plywood outdoors?

Absolutely. Marine plywood is specifically designed for outdoor and wet environments. It outperforms regular exterior plywood in moisture resistance, making it ideal for decks, docks, sheds, and any outdoor project exposed to rain or humidity.

What's the difference between marine plywood and exterior plywood?

Marine plywood uses higher-grade hardwood veneers and phenolic waterproof glue throughout. It must meet strict BS 1088 standards for moisture resistance and structural integrity. Standard exterior plywood uses different adhesives and lower-grade cores.