Duocore Ultra Lightweight Door Blanks

Duocore is the lightest weight solid timber blank available, with proven class-leading thermal insulation and UKAS certified hot plate test evidence for superior performance. multi-layered door blank with a light hardwood core. It can be freely resized to accommodate any leaf dimension, without the need for a timber perimeter.


  • Multi-layered light hardwood core for strength and stability
  • Comprehensively fire tested to BS 476: Part 22: 1987
  • Ultra-lightweight - only 28kg for size 2135 x 915 x 44mm
  • Exceptional thermal efficiency rating of 1.3W/m²K
  • No core perimeter framing enabling processors to size without restriction

Fire Performance

  • FD30 - BS 476: Part 22: 1987 for single and double leaf door assemblies


2135 x 915 x 44mm

2440 x 1220 x 44mm

Fire Test Video