Long shelf

A shelf is a flat horizontal surface used for storing, displaying, or organizing items. Shelves are commonly made of wood, metal, or glass and are supported by brackets or fixed directly to a wall. They can be found in homes, offices, shops, and warehouses, providing both practical storage and decorative display. Depending on their design, shelves may be freestanding, wall-mounted, or part of larger furniture such as cabinets or bookcases.