A door stop is a simple device used to hold a door open or closed. It prevents the door from swinging too far or slamming shut, which can cause damage to the door or surrounding walls. Door stops come in various shapes and materials, including rubber, wood, and metal, and can be placed on the floor or attached to the wall. There are two main types of door stops: stationary and portable. Stationary door stops are fixed in place, often mounted on the wall or floor, while portable door stops can be easily moved and used as needed. Both types help maintain safety and convenience in homes and offices.