A "barn door" is a large, sliding door typically used in agricultural buildings, such as barns. These doors are designed to provide easy access for vehicles and livestock while allowing for ventilation and light. They can be made from various materials, including wood and metal, and often feature a rustic design. In addition to their practical use in farms, barn doors have become popular in home decor. Many people use them as interior doors or decorative elements in homes, adding a touch of charm and character to living spaces. Their sliding mechanism saves space compared to traditional hinged doors.