A chair rail is a horizontal molding installed on the wall, typically around 30 to 36 inches above the floor. Its primary purpose is to protect the wall from damage caused by chairs and other furniture. Chair rails can also enhance the aesthetic appeal of a room by creating a visual break between different wall colors or materials. In addition to protection, chair rails are often used in interior design to add character to a space. They can be made from various materials, such as wood or plastic, and come in different styles to match the decor. Interior design enthusiasts often incorporate chair rails in traditional and modern settings alike.