A door stop is a simple device used to hold a door open or closed. It prevents the door from swinging too far, which can help protect walls and furniture from damage. Door stops come in various shapes and materials, including rubber, wood, and metal, making them suitable for different styles and needs. There are two main types of door stops: stationary and portable. Stationary door stops are fixed to the floor or wall, while portable ones can be easily moved around. Some popular designs include wedge door stops and spring door stops, each offering unique benefits for everyday use.