Nothing looks - or works - better in rooms overlooking gardens and terraces. This new-generation door, designed for large openings, joins multiple sashes in a unique slide and fold mechanism. The sashes move in either direction (left or right) and can be stacked at either end. It can open from wall to wall for maximum unobstructed opening to the outside, or open partly for ventilation and access. When closed it is extremely secured and insulated, and comes across as a beautiful wall of door panels.