What is thermally modified wood?
Thermally modified wood is wood that has been heat treated in a specialized kiln to enhance its durability and dimensional stability, making it more resistant to decay, rot, and insect damage. All of this while being chemical-free and sustainable!
ThermalAged
ThermalAged, Trestlewood's collection of thermally modified wood products, combines our 30+ year commitment to quality character wood with the performance benefits of thermally modified wood.
Quality Character Wood
- Rough-sawn texture
- Knots, mixed grain, and other stunning character
- Rich brown color
- High production standards
+ Performance Increases
- Dimensional stability
- Moisture resistance
- Decay resistance
- Insect resistance
If you are looking for a stunning quality character wood product for use on a project with a harsh climate and/or significant stability requirements, we recommend that you strongly consider ThermalAged.
With one thermal kiln currently operational and a second kiln coming online soon, we have the capacity to increase production while maintaining the quality and rustic character that define our ThermalAged products.
Unloading material from Trestlewood's thermal kiln
ThermalAged Product Lines
Need material now? Check out our ThermalAged Express Products that are available for immediate purchase
Color tones
ThermalAged lumber comes in rich, brown tones. All else being equal, the higher the temperature the material is run at, the darker the brown tones. Trestlewood generally targets medium to dark brown tones in its standard ThermalAged program. Custom runs of lighter brown tones can often be done with orders involving at least 7,500 board feet of material.
Dark (210-215°C)
Medium (180-190°C)
ThermalAged brown coloring generally extends throughout the full board thickness, allowing you to cut ThermalAged boards and have the resulting board faces and edges be quite consistent in color. If left untreated, expect ThermalAged lumber used in exterior applications to change color over time (often going gray).