Thermally modified wood is wood that has been treated with heat to change its properties. It's like baking a cake, but with wood instead of cake batter!
When you heat wood, the structure of the wood changes. The heat causes the wood to release moisture, which makes it more stable and less likely to move or warp. This also makes it easier to work with when building things.
The heat also changes the color of the wood. It can make it darker or lighter depending on how hot it gets. This makes the wood look different and can be used to create different effects when building.
Thermally modified wood is also more resistant to bugs and decay. This means that it can last longer and be used in outdoor projects without as much risk of damage.
Overall, thermally modified wood is a special type of wood that has been heat-treated to make it stronger, more stable, and more resistant to damage.