A chair rail is a decorative molding that is typically installed around the perimeter of a room, usually at the height of a chair's back. Its primary purpose is to protect the walls from damage caused by chairs and other furniture. Beyond its functional role, a chair rail also adds visual interest and can enhance the overall design of a space. Often found in dining rooms and hallways, chair rails can be painted or stained to match the room's decor. They can also serve as a divider for different paint colors or wallpaper styles, creating a stylish transition between the upper and lower sections of the wall.