Bi-fold doors are a type of door system that consists of multiple panels that fold back against themselves when opened. They are commonly used to create a seamless transition between indoor and outdoor spaces, making them popular for patios and gardens. The design allows for wide openings, maximizing natural light and enhancing views. These doors are typically made from materials like aluminum, wood, or uPVC, offering various styles and finishes. Bi-fold doors can be customized to fit different spaces and are often equipped with advanced locking mechanisms for security. Their versatility makes them suitable for both residential and commercial applications.