Marine Plywood

Built to Withstand, Designed to Perform

We only source from the top Marine Plywood manufacturers to ensure that we are providing you with the very best quality of wholesale Marine Plywood that is available.

Marine plywood is manufactured from durable face and core veneers, with few defects; so it performs longer in both humid and wet conditions and resists delaminating and fungal attack. Its construction is such that it can be used in environments where it is exposed to moisture for long periods. Each wood veneer will be the same species throughout (Fir, Okoume, and Meranti), and have minimal core gap, limiting the chance of trapping water in the plywood and hence providing a solid and stable glue bond. It uses an exterior Water and Boil Proof (WBP) glue.

Roseburg Marine Fir

Roseburg Marine Fir AB is marine-grade plywood that is produced entirely of Fir veneers. The Panel is sanded on both faces. The maximum core-gap size permitted is 1/8 inch. Its exposure durability rating is EXTERIOR and the glue used is a water resistant structural adhesive. It is considered a premium grade panel for use in situations where these characteristics are required.

Roseburg Marine Fir Plywood is a very strong marine grade plywood. It bends well and is of a medium weight. It is a more affordable option for marine plywood applications. Applications forRoseburg Marine Fir can be home projects, commercial projects, counter-top underlayment, as well as cabinets, furniture, boat houses, wooden toys, garage & carports; shelving cabinets, playhouses, platforms for bed frame, overlay applications, outdoor signs, boat building, docks, and more.

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Okoume Marine Grade Plywood

Okoumé Marine plywood is graded as being compliant with BS-1088, which is a British Standard for marine plywood. Our Marine Okoume plywood has a Lloyd’s of London stamp that certifies it to be BS 1088.

BS-1088 grading requires the same species throughout (face, back, and core), defect-free A Grade Face veneer with no repairs. Back veneer is to have no more than two repairs. Both Face and Back Veneer are a minimum of 1mm thick after sanding and core gaps cannot exceed 1mm.

Okoume is a fast growing, plantation grown tropical hardwood. Okoume’s clear, beautifully figured grain has a golden, honey colored hue beneath epoxy and varnish, while its low density provides ultra light weight for hull applications. Okoume is ideal for boat building, soffits, the transpiration industry, joinery work (interior & exterior), cladding, interior fittings and more.f

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Marine Meranti

Marine Meranti is made in accordance with British Standard BS-6566 which requires that the Face veneers shall be at least 1mm thick after sanding. No wood repairs are used in the face. Inner ply’s can consist of two or more species of veneer and core gaps shall not exceed 3.2mm (1/8″). Gaps shall be putty filled to protect from moisture.

Marine Meranti is an excellent exterior grade product which has long be used in wooden boat construction. The density and grain structure of Meranti is similar to Genuine Mahogany with a nice, homogeneous feel that allows it to be milled easily and hold details really well. It is much lighter than the African exterior wood options like Sapelli, Utile, and African Mahogany. Some of the applications for Marine Meranti can include boat building, soffits, transport industry, joinery work (interior & exterior), cladding, interior fittings and more.

Specifications Lengths: 96″ Widths: 48″
Thickness: 6mm, 9mm, 12mm, 15mm, 18mm, 25mm
Grade: Made in accordance with BS6566 or BS1088 Grade

Certifications: CARB – California Air Resources Board • Lloyd’s Register Type Approved – British Standard 6566

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Marine Sapelli

Marine Sapelli Plywood is a rotary cut African wood with a deep swirling grain. This product takes a varnish well, is very durable, and is visually attractive piece of wood. Marine Sapelli is fabricated from durable confront and heart veneers, with few flaws; therefore it performs more in both moist and moist conditions and resists delaminating and bacterial attack. Its structure is such it may be utilized in environments where it’s subjected to moisture for extended periods. Every wood veneer is going to be the very same species during (Fir, Okoume, and Meranti), and also have minimum heart gap, restricting the likelihood of trapping water from the plywood and thus giving a strong and secure paste bond. It employs an outside Water and Boil Proof (WBP) glue.

Uses: The uses for Sapelli Marine Plywood are bulkheads, transoms, center boards, paneling doors, stairs, piano cases, vehicle construction, cabinetry, under water use and more.

Chesapeake Plywood supplies wholesale Marine Plywood by an assortment of the greatest plywood producers. We just source in the best Marine Sapelli produces to make sure that we’re giving you the best caliber of wholesale Marine Sapelli that’s available.

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What is Marine Plywood?

Marine Plywood is used as a building material in a marine setting, such as ships or docks. Marine Plywood performs well in wet conditions, humidity, or anywhere it will be exposed to prolonged moisture. Unlike most woods, it will resist the bending, warping, or delaminating which can often result from too much moisture. This increases the durability and structural strength of Marine Plywood making it a good choice for marine construction.

Marine Plywood can be used for storage shelving, cabinets, furniture, boat house, playhouses, overlay applications, outdoor signs, boat building, docks and more.

Marine-grade plywood, often called Marine plywood, is manufactured from durable face and core veneers with few defects; so, it performs longer in both humid and wet conditions and resists delaminating and fungal attack. Its construction is such that it can be used in environments where it is exposed to moisture for long periods. Each wood veneer will be from tropical hardwoods, and will have negligible core gap, limiting the chance of trapping water in the plywood and hence providing a solid and stable glue bond. It uses an exterior Water and Boil Proof (WBP) glue similar to most exterior plywood.

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Frequently Asked Questions

What makes marine plywood different from standard exterior plywood?

Marine plywood is engineered for strength and moisture performance. It uses higher-grade veneers, waterproof adhesive, and a void-free core — giving you better screw-holding, cleaner edges, and a stable panel in wet or high-humidity environments.
Is marine plywood fully waterproof?

No panel is “waterproof,” but marine-grade construction significantly improves resistance to moisture, swelling, and delamination. It’s built to stay stable where standard plywood would fail.
When should I choose marine plywood over treated plywood?

Choose marine plywood when you need a clean finish, consistent strength, and precise fabrication. Choose treated plywood when decay resistance is the primary concern but appearance and machining are less critical.
Can marine plywood be used for exterior projects?

Yes — as long as it’s properly sealed and finished. Marine plywood excels in applications where the appearance and structural integrity must hold up despite moisture exposure.
Do you stock multiple grades and thicknesses?

Yes. We carry a range of common marine specifications and thicknesses, including hard-to-find options. For availability, request a quote and our team will confirm stock and lead times.
Does marine plywood need to be sealed or coated?

Yes. Even though it’s built for moisture resistance, marine plywood should be sealed on all sides to protect against long-term exposure, UV breakdown, and surface wear.
Can you help me choose the right panel for my application?

Absolutely. Whether you’re building casework for a yacht interior, fabricating exterior signage, or sourcing for architectural millwork, our team can recommend the right grade and finishing approach. Bring us your challenge — we’ll help you get it right.
Do you offer cutting, sizing, or edge prep?

Yes. Through our panel prep services we can size panels, apply backers, and prepare material so it’s ready to fabricate the moment it arrives.
What are your delivery options for marine plywood?

We offer delivery within designated regions and ship nationwide through LTL partners. For large runs or time-sensitive installs, we can coordinate staging, routing, and just-in-time delivery.
What’s the minimum order?

For will-call pickup, the minimum is $500. Free local delivery begins at $1,000. For other regions, contact us for location-specific delivery minimums.
Can I match marine plywood with veneers, laminates, or edge options?

Yes. We can help you build a matched system across panels, edges, and decorative surfaces for a consistent look across your project.
Do you carry other moisture-resistant options besides marine plywood?

Yes — including MDO, MR panels, prefinished surfaces, and other substrates depending on the application. If marine isn’t the right fit, we’ll guide you to a better option.

Brands you can trust

We carry only the highest quality wood products by the best brands in the industry. We carefully select the brands we distribute; they must be of the highest quality and employ the very latest in industry standards. We take our product selection very seriously because we want only the best for our clients. Your satisfaction is our top concern.