A door wedge is a simple device used to hold a door open or closed. Typically made from materials like wood, rubber, or plastic, it is designed to fit snugly under the door. This prevents the door from moving, which can be useful in various situations, such as keeping a door ajar for ventilation or ensuring it stays shut during windy conditions. Door wedges come in various shapes and sizes, allowing them to accommodate different types of doors. Some are designed to be portable, making them easy to carry and use in different locations, while others may be more permanent fixtures. They are commonly used in homes, offices, and public spaces to enhance convenience and safety.