Undoubtedly, natural origin is of no small importance, it determines the environmental purity of wooden structures. Certain properties among wood, depending on the tree of the tree, give their pros and cons of interior decoration and when erecting walls. By the appearance of trees, they are divided into deciduous rocks and coniferous. Coniferous breeds include: spruce, cedar pine. Due to the swiftness of the process of decay, spruce is rarely used to build walls. However, the structure allows you to use it for interior decoration.