Need lightweight fire protection that’s easy to handle? This 4mm flame-retardant plywood is a slim, flexible sheet for safety-critical interiors such as schools, exhibition builds and public spaces. It’s supplied as a full board and is treated to slow the spread of flame while retaining the strength and workability of quality ply. If you need pre-sized parts instead, order our flame retardant plywood cut to size.
- 4mm thickness – light, flexible and simple to fix
- Flame-retardant treatment – helps reduce fire risk and support compliance
- Smooth faces – ready to paint, laminate or veneer
- Clean machining – cuts, drills and screws well with minimal breakout
- Full board format – efficient coverage for larger areas; pair with hardwood plywood full boards
for non-FR zones
- Wall and ceiling linings in public or commercial interiors
- Exhibition and stage panels, props and backdrops
- Shopfitting, cabinets and displays where a thin FR layer is required
- Partitions, soffits and service risers
- Order full boards here or switch to FR cut-to-size sheets for zero waste
- Fast UK delivery across England & Wales
- Consistent, high-quality stock from trusted mills
- Friendly advice on thickness, grades and installation
1. Is this board certified?
Yes—our flame-retardant plywood is treated and tested to recognised UK/EU fire-performance standards. Always confirm requirements with your building inspector.
2. Can I paint or laminate it?
Absolutely. The smooth faces accept paint, laminates and veneers. Use compatible fire-safe coatings where required.
3. Where shouldn’t I use 4mm?
Use 4mm for linings and decorative work. For floors, structural parts or high-impact areas, choose thicker options such as 9–12mm or a non-slip panel like Buffalo Board phenolic plywood.
4. Do you offer custom sizes?
Yes. If you want precise parts, order via our flame retardant plywood cut to size page.
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