Thermal Modification

Thermory® offers the best of real wood products that are beautiful, durable,functional and environmentally sound. The special touch of the Thermory® thermal modification greatly improves the properties of real wood, making Thermory® an excellent choice.

The Thermory® collection is produced by Brenstol, a Northern European manufacturer of profiled solid wood products. With 20 years of experience, it is one of the leading thermo-treated wood producers in Europe, offering a wide range of interior and exterior products. As a result of continuous product development, the Thermory® collection offers beautiful, durable and functional timber that is environmentally sound. All items are free of chemicals, harmless to use and do not originate from endangered rainforests.



  • The Process uses only heat & Steam (no chemicals)
  • Industry's top thermal modification kilns
  • Computer controlled
  • 2 modification levels: Medium & Intense


  • Highest possible durability of natural wood
  • Thermory® Ash has Durability Class 1
  • Thermory® Pine has Durability Class 2


  • Chemical-free thermal modification process
  • Sourced from well-managed American & European forests
  • No rainforest wood
  • No plastics
  • No toxic waste


  • Higher dimensional stability
  • Lower moisture content
  • Less likely to warp, bow, cup, twist or shrink



  • Easy on tooling
  • Non-toxit dust
  • Low thermal conductivity
  • Lighter weight
  • Machines beautifully

Colour & Beauty

  • Thermory® Ash has a rich brown colour through full thickness
  • Thermory® Pine is lighter & Golden in colour
  • Ages to a platinum grey
  • Preserve the original tone with UV protective oil
  • Variations in colour are natural