These elegant, concertino doors add a real "wow" factor to any home or premises, and seamlessly connect our outdoor and indoor spaces. Once folded back, they create a large opening for easy access. Particularly suited for new build projects, these designer folding doors are becoming increasingly popular as property developers seek to differentiate their homes. Home owners too are increasingly demanding more sophisticated products. Archicon Engineers has carefully designed its bi-fold door system to offers smooth, simple functionality with bottom or top rail concertina mechanism. The versatility of the Archicon Engineers BI-fold door means that you can use it to create a glass wall up to an impressive 6 meters wide. As you would expect from the world leaders in door system.