What Is Okoume Marine Grade Plywood? Uses, Sizes, and Benefits

Okoume marine grade plywood is widely used in boatbuilding and marine construction due to its lightweight structure, consistent grain, and reliable performance in moisture-prone environments. As a commonly selected option within marine plywood panels, okoume is valued for its strength-to-weight ratio and ease of use in both structural and interior applications.

What Is Okoume Marine Grade Plywood?

Okoume marine grade plywood is manufactured using Aucoumea klaineana, a tropical hardwood native to Central Africa, primarily sourced from Gabon. It is one of the most widely used materials in marine-grade plywood construction, especially in applications where reducing weight without sacrificing strength is important.

Panels are typically produced to BS 1088 standards and may be approved by Lloyd’s Register, ensuring compliance with recognized marine performance requirements. These standards are commonly referenced across high-quality boat building materials used in both commercial and recreational marine construction.

Construction and Material Composition

Okoume marine plywood is built using a full core of rotary-cut okoume veneers, creating a balanced panel with consistent density and minimal internal voids.

Key construction features include:

• Core – Constructed entirely from okoume veneers, similar to other high-quality marine plywood cores, ensuring structural consistency

• Face and Back – Sanded okoume veneers provide a smooth surface that can be used directly or finished with wood veneers for interior applications

• Adhesive – WBP Type 1 phenolic resin designed for long-term moisture resistance in exterior and marine environments

• Edge Construction – Solid composition throughout the panel improves machining and fastener holding

This type of construction makes okoume a preferred base material for a range of marine panels and specialty wood panels used in demanding environments.

Sizes, Thicknesses, and Common Applications

Okoume marine plywood is available in multiple panel sizes and thicknesses to support a wide range of applications.

Standard Sizes:

• 1220mm x 2500mm (4' x 8')

• 1530mm x 3100mm (5' x 10')

Thickness Options:

• 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 9mm, 12mm, 15mm, 18mm, 22mm, 25mm

Because of its lightweight structure and stability, okoume plywood is commonly used in:

• Boat hulls and planking

• Interior joinery and cabinetry

• Cabin sole panels and marine flooring systems

• RVs, caravans, and commercial vehicles

• Furniture and wall paneling

• Exterior construction such as soffits and roof edges

In many cases, okoume panels are combined with materials like teak lumber or used as a substrate beneath finished surfaces such as teak and holly cabin sole.

Okoume marine grade plywood remains one of the most widely used materials in marine construction due to its lightweight composition, consistent structure, and moisture-resistant bonding. As part of a broader range of marine plywood and specialty panel options, it provides a dependable solution for boatbuilders, fabricators, and marine professionals working across interior and exterior applications.