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12mm Marine Plywood Sheets

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701 reviews
Rated 4.7 out of 5 stars
5 stars
(584)
4 stars
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(14)
2 stars
(8)
1 star
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Our 12mm marine plywood sheet is purpose-built for enduring external environments and moisture-rich spaces. Its robustness caters to storage, wall constructions, and indoor vehicle zones. With resistance to fungi and delamination, our superior BB/BB grade marine plywood ensures reliability in gardens, bathrooms, and parks.

Please note that the colour of your marine plywood may differ slightly from the images as we buy from multiple suppliers.

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mm
Min: 100mmMax: 2440mm
mm
Min: 50mmMax: 1220mm

Approximate Weight: 42.67 g

Free delivery when you spend £250+

Estimated delivery: from Check My Postcode

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Marine Ply Board Specifications

Material Plywood
Finish Marine
Thickness 12mm
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 hardwood plywood is suitable for my project?

When determining the appropriate hardwood plywood thickness, it is essential to consider the specific application to ensure optimal performance.

For intricate crafts and hobby projects, a thinner option like 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, choose between 9mm or 12mm plywood, depending on the specific load-bearing requirements. In applications where durability is paramount, such as flooring, subfloors, or heavy-duty uses, it is advisable to opt for a sturdier option, like 18mm plywood.

Is marine plywood waterproof?

While marine plywood is not entirely waterproof, it features a negligible core gap to minimise the likelihood of water getting trapped between the layers. This design ensures a strong and stable glue bond, providing extra strength.

How does marine plywood differ from regular plywood?

In comparison to standard plywood, marine plywood utilizes higher quality wood, incorporates more layers, employs a more durable adhesive, and is specifically designed to resist delamination and warping when exposed to moisture over time. Regular plywood is not suitable for prolonged wet conditions.

What is the recommended method for sealing marine plywood?

Given that marine plywood is often used in or around water, it's crucial to treat every surface with a sealant. A waterproof penetrating epoxy is ideal, as it penetrates deep into the wood, dries transparent, and requires less maintenance than other sealants.

Do I need marine-grade plywood?

We recommend using marine-grade plywood in any instance where the sheet will be near water.

How long does marine plywood last?

With proper maintenance, marine plywood can last over 25 years, even with constant water exposure. Sealing and painting contribute to extending its lifespan.

Is marine plywood treated with chemicals?

No, marine plywood is not chemically treated. Its water resistance is achieved through the use of durable face and core veneers, resistant adhesives, and multiple laminated layers.

Delivery depends on the size of your order

Reviews

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4.7 / 5 701 reviews
Ivor Barnett, 13th April
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Good graining. Light weight. Nice quality
Verified, Collected by Cut My
Si, 9th April
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The plywood is of excellent quality. Far better than big box stores
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Phillip Collier, 9th April
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A small order surcharge prevents me from giving 5 stars.
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Neil Cunningham, 9th April
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90% great. One piece was damaged but usable. Costly.
Verified, Collected by Cut My
Paul Bowden, 8th April
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Great service. Quick delivery
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Chris Swain, 7th April
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Does the required job.
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Anne Otto, 6th April
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Excellent company. Reliable and efficient service. Happy customer
Verified, Collected by Cut My
MD, 3rd April
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Below average quality, lots of chips
Verified, Collected by Cut My
George Damerum, 1st April
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Fit for purpose
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Tushar Gupta, 1st April
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I needed a piece of wood to support my microwave. It was slightly bigger than the panel. Randomly came across this website and tried my luck. I am not a DIY person so I had to rely on them. I gave them no brief, just followed the simple form to submit measurements and selected the type of wood I like. Voila! In a few days, I received the perfect piece to ensure our microwave is well supported.
Verified, Collected by Cut My
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