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.

12mm Marine Plywood | BS 1088 Full Board

12mm Marine Plywood “BS1088” Full Board – Plydirect

12mm marine plywood — BS 1088 full board for wet-area builds

Choose 12mm marine plywood when you need a stiff, dependable sheet that resists moisture and stays stable. This full board is constructed from durable hardwood veneers and bonded with waterproof glue to meet BS 1088 requirements. Because the core has minimal voids and tight bonding, the panel cuts cleanly, holds screws well, and finishes beautifully. As a result, it excels in boat building, bathroom fit-outs, coastal projects, and van or camper conversions.

Key benefits

BS 1088 marine grade for consistent performance in humid conditions
12 mm thickness adds rigidity for floors, decks, and structural liners
Smooth, sanded faces ready for varnish, paint, or laminate
Low-void core for neat edges and strong screw-holding
High moisture resistance thanks to quality veneers and WBP bonding

Need components ready to fit? Order Marine Plywood – Cut to Size.

Building non-slip floors or ramps? See Buffalo Board – Full Board.

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

Typical uses

Boat hull interiors, lockers, seating, and cabinetry
Bathrooms, utilities, and kitchens with appropriate waterproof finishes
Exterior cladding and soffits in sheltered locations
Floors, decks, and platforms where extra stiffness is required
Wall and ceiling panels in garden rooms and workshops

Working & finishing tips

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

Quick specs

Grade: BS 1088 marine plywood
Thickness: 12 mm (full boards; cut-to-size available)
Faces: Smooth hardwood veneers
Bonding: Waterproof (WBP) adhesive

Frequently Asked Questions

1. Is 12 mm suitable for floors or decks?
Yes. It’s a popular choice for boat floors, van decks, and structural liners. For wider spans or heavy loads, consider 18 mm.

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

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

4. Do you deliver nationwide?
Yes—order online for fast UK delivery. We also offer a cut-to-size service.