ThermoWood Hidden Fix Cladding TG Shadow Gap – A Grade – 20mm


Thermowood is a type of timber that has undergone a special thermal modification process to enhance its performance and durability. The process involves subjecting the wood to high temperatures, usually between 180 to 230 degrees Celsius (356 to 446 degrees Fahrenheit), in a controlled environment with limited oxygen supply.

During the thermal modification process, the wood undergoes physical and chemical changes. The high temperature alters the wood’s cell structure, resulting in improved stability, reduced moisture absorption, and increased resistance to decay and rot. It also reduces the wood’s ability to conduct heat, making it more insulating.



SKU: 747311085 Categories: , Product ID: 11085


ThermoWood Hidden Fix Cladding TG Shadow Gap is a leading product in the modern construction market. It is one of the best natural building materials ideal for sustainable projects. Thermowood is heat (chemical free) treated timber. Because of how it is heated, wood becomes durable in any weather and does not deform, warp, rot or change colour. Secret fixing can be easily used on Thermowood. No treatment is required for this wood, however some may choose to apply some stain or oil if desired.

Wood is very light which makes it much easier to install.

● Texture: Smooth
● Scratch resistance
● Rot, insect and moisture resistance
● Low Maintenance

  • Ideal for external cladding applications
  • Price excluding VAT ( VAT added on checkout )
  • £39.60 square meter plus VAT
  • Cladding sections can be fitted horizontal and vertical
  • Delivery 5-10 working days

Additional information


20mm x 120mm x 3.0m – £14.26, 20mm x 120mm x 3.9m – £18.54, 20mm x 120mm x 4.5m – £21.39, 20mm x 120mm x 4.8m – £22.81