The element is used to design the bottom of the window opening. Usually, a large and protruding part of the finish of the window opens from the outside. The window sill of the wall is often decorated with additional decor elements in the form of patterns, frames, and various compositions. Very often, the window profile is supported by brackets. When installing a decorative window sill, it is especially important to remember that the window slope is covered with metal or other material after fixing the window sill decor. Metal should cover the window slope and profile.