What sizes do plywood sheets come in?

Common boards are 2440×1220 mm (8×4), and Ply Direct can cut to any size you need. Thickness typically ranges from 4–30 mm depending on the material.

How much does a ply sheet cost?

Prices vary by material, thickness and dimensions. Enter your sizes on the product page for a live price or request a quote.

Can I get plywood cut to size?

Yes. Ply Direct offers accurate cutting on professional equipment for clean, splinter-free edges.

How is plywood different from MDF?

Plywood is made from cross-layered veneers for strength and improved moisture performance, while MDF is compressed fibres. Plywood is generally stronger and more moisture resistant.

6mm Marine Plywood Cut to Size

6mm Marine Grade Plywood “BS1088” Cut to size

6mm marine plywood — cut to size for wet-area builds

Choose 6mm marine plywood when you need a light yet reliable sheet for humid or splash-prone spaces. We cut every board to your exact measurements, so you get clean, CNC-accurate parts with no waste. Made from durable hardwood veneers and bonded with waterproof adhesive to BS 1088, these panels resist warping and delamination. As a result, they’re ideal for boat interiors, bathroom linings, van conversions, and outdoor projects where standard plywood struggles.

Key benefits

BS 1088 marine grade for consistent performance in damp conditions
Custom cut to your sizes for faster installs and less waste
Smooth, sanded faces ready for varnish, paint, or laminate
Low-void core for crisp edges and strong screw-holding
Lightweight plywood 6mm thickness that stays stable yet easy to handle

Need a full sheet instead? See 6mm Marine Plywood – Full Board.

Building a non-slip floor? Consider Buffalo Board – Anti-Slip Phenolic Birch.

For dry-area cabinetry, compare Birch Plywood – Full Board.

Typical uses

Boat furniture and bulkheads where light weight still matters
Bathrooms, utilities, and cloakrooms with appropriate waterproof finishes
Van and camper linings that require neat, accurate panels
Garden rooms and coastal joinery in sheltered exposures
DIY repairs and craft projects that need a tidy, smooth surface

Working & finishing tips

First, acclimatise panels to site conditions. Next, pre-seal all edges, especially cut edges with a compatible sealer or varnish. Then pre-drill and fix at recommended centres, leaving small expansion gaps at walls and corners. Finally, apply a water-resistant finish; in shower or direct-splash zones, pair the sheet with a suitable waterproof membrane for best results.

Quick specs

Grade: BS 1088 marine plywood
Thickness: 6 mm (cut-to-size; full boards available)
Faces: Smooth hardwood veneers
Bonding: Waterproof (WBP) adhesive

Frequently Asked Questions

1. Is 6 mm thick enough?
Yes for linings, cabinets, and lightweight panels. For floors or wide spans, step up to 9–12 mm or add closer supports.

2. Can I paint or varnish it?
Absolutely. The faces are smooth and ready for varnish, paint, or laminate—seal edges first.

3. Is marine plywood fully waterproof?
No sheet is truly “waterproof,” but BS 1088 panels are highly water-resistant. Proper sealing and maintenance are still essential.

4. Do you deliver nationwide?
Yes—order online for fast UK delivery. We’ll cut to size before dispatch.