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12mm Marine Plywood Sheets

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889 reviews
Rated 4.7 out of 5 stars
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(14)
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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 / 5 889 reviews
JB, 22nd October
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Good quality, as ordered
Verified, Collected by Cut My
Lee J Haywood, 22nd October
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I bought 2 birch plywood panels (12mm) for use as kitchen cupboard shelves and they are perfect for the job. Good quality with a nice finish and are now loaded with cans, etc.
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Rob_w, 21st October
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Ordered plywood cut to size in order to build a custom display for housing miniature bronze animal skulls. The wood was well finished without rough edges and were cut accurately. I aged the plywood with a wire-wool/vinegar solution before assembling then finished with linseed oil.
Verified, Collected by Cut My
Richard Baker, 19th October
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Cut exactly to size making fitting straightforwards.
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Hilary, 18th October
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Great product, precisely cut and good customer service, thank you!
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R Field, 18th October
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Sheet of marine ply cut to size to raise up a cooker to surface height. All good. Treated with yacht varnish afterwards. Happy with the service.
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Erika, 15th October
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I built a cabinet to hide my tv. I have no carpentry skills but cut my cut the pieces exactly as ordered and it looks great (I had a little help putting it together!). I couldn’t have done it without cut my’s help. Excellent service at reasonable price.
Verified, Collected by Cut My
Paul Galbraith, 14th October
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Marine ply was perfectly smooth sanded finished, cut to exact measurements given. Would use again
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Joshua Ray, 12th October
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The cut came out perfectly to how I wanted it :D
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robert, 11th October
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expensive!
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