A basement is a space located below the main floor of a building, often used for storage, utilities, or additional living areas. It is typically accessed by stairs and can be partially or fully underground. Basements can vary in size and design, depending on the structure and purpose. Many homes have basements that serve as laundry rooms, recreation areas, or workshops. In some cases, they are finished to create extra living space, while others remain unfinished. Basements can also house essential systems like furnaces and water heaters, making them important for a building's functionality.