Sheet Materials
Plywood, MDF, OSB and flooring boards, organised so you can get to the right sheet quickly.

Shop by category
Plywood & structural boards
MDF & interior boards
More about sheet materials
Our sheet materials range covers the most-used boards for building, joinery, interiors, and general site work. From structural projects to workshop fit-outs, you’ll find dependable options including plywood, MDF, moisture-resistant boards, marine-grade boards, OSB3 and flooring grade sheets — stocked for trade and DIY customers across South Wales.
Browse the full range below, or jump straight to a specific board type: Hardwood Plywood, Softwood Plywood, Birch Plywood, Birch Trailer Board, MDF, Moisture Resistant MDF, Marine Plywood, OSB3, P5 Flooring Grade Boards.
Common uses for sheet materials
- Floors & subfloors: flooring-grade boards and structural sheets for stable, consistent coverage
- Roofs & structural decking: OSB3 and suitable plywood options for structural applications
- Wall linings & partitions: quick coverage for interiors, garages, workshops and site spaces
- Furniture & joinery: MDF and birch plywood for cabinetry, shelving, and fitted projects
- Moisture-prone areas: moisture-resistant boards for utility spaces and similar environments
Choose the right board for the job
Board choice matters: strength, face quality, moisture performance, and intended finish all vary by product. If you need a clean finish for painting or interior joinery, start with MDF or Moisture Resistant MDF. For strength and stability, compare Hardwood Plywood, Softwood Plywood, and OSB3. For demanding wet-use projects, see Marine Plywood.
Local supply across South Wales
Wern-Wood supplies sheet materials for trade and DIY customers across South Wales, with collection and delivery options depending on product and order size. If you’re working to deadlines (or matching sheets to an existing build), our team can help you pick the right thickness and board type.
Quick links
- All Sheet Materials
- Hardwood Plywood
- Softwood Plywood
- Birch Plywood
- MDF / Moisture Resistant MDF
- Marine Plywood
- OSB3
- P5 Flooring Grade Boards
FAQs
Which sheet material is best for flooring?
For many flooring applications, start with P5 Flooring Grade Boards, then confirm suitability for your specific build-up and environment.
What should I use for humid or damp-prone areas?
For interior areas where moisture is a concern, compare Moisture Resistant MDF and Marine Plywood depending on the application and finish required.
What’s the best all-round structural sheet?
OSB3 is widely used for structural applications, while plywood options may be preferred where face quality and finish are important.
Not sure where to start?
Looking for something else?
Tell us what you’re building.
Tell us the job and we’ll point you towards the right materials.











