Grilles are frameworks or barriers made of metal, wood, or plastic, designed with a series of openings or slats. They are commonly used in architecture and design to allow air circulation while providing some level of privacy or security. Grilles can be found in various applications, such as windows, doors, and ventilation systems. In addition to their functional uses, grilles can also serve decorative purposes. For example, garden grilles can enhance the aesthetic appeal of outdoor spaces, while grill grates are essential components of barbecue grills, allowing food to be cooked evenly over heat.