Flamebreak 660 L4E (Lipped All 4 Edges) 54mm plywood door blank is a high-performance FD60 (60-minute) fire-resistant solid core blank. 
Designed for both internal and external applications, it features 6mm hardwood plywood faces bonded to a lightweight hardwood tri-laminate core.
These door blanks are engineered for both bespoke architectural projects and standard fire door assemblies, including the preparation of glazing apertures, vision panels and fire-rated ironmongery where permitted by the manufacturer's certification.

The hardwood plywood faces offer a durable and stable surface suitable for a wide range of decorative finishes, while the use of FLEGT-licensed timber demonstrates compliance with responsible timber sourcing requirements. 
Suitable for commercial, residential, healthcare, education and public sector buildings, the door blank supports effective fire compartmentation and life safety when installed with compatible certified frames, seals and hardware.

Key Features:

• Fire Rating: FD60 (Tested to BS 476-22) for up to 60 minutes of fire resistance.
• Construction: 3-layer hardwood lumber core with full 6mm hardwood plywood faces.
• Edging: Lipped on all 4 edges, providing structural integrity and a solid base for hardware and finishing.
• Acoustics: Provides sound insulation up to 36 dB in various tested configurations.
  
• Durable hardwood plywood facings suitable for painting, laminating or veneering
• Manufactured using FLEGT-licensed timber from legally verified sources
• Compatible with approved fire-rated glazing systems, intumescent seals and ironmongery, subject to certification
• Ideal for commercial, residential, healthcare, education and public sector applications where FD60 fire protection is required.