Definition: A section or notch of wood sawn and removed from a tree's base. Its removal allows the tree to fall and assists in direction where it will fall. The face is comprised of two separate cuts which have constant relationships; the horizontal cut must be at least 1/3 the diameter of the tree, the sloping cut must be angled enough to allow a wide opening and the two cuts must not cross each other. Also called notch cut and undercut.
Also Known As: Notch
