CALHOME thermally modified wire brushed stained knotty pine Tongue and Groove (T and G) boards are made of solid pine wood with a fully finished surface. Each piece of textured wood has been carefully wire brushed and thermally modified, 100% handmade. The thermally modified process involves heating the wood to a high temperature, which changes its cellular structure, making it more resistant to decay, insects, and rot. The wire brushed process exposes the soft grains from the tree's growth ring giving the wood board a natural 2-toned look and unique texture. It is ideal to be used for furniture crafting and a variety of your home woodworking projects.