Specially engineered hardware lets heavy Weiland Sliding Doors move without struggle. The flush bottom track projects just 3/16 inch above the finished floor for seamless transitions from indoors to out. The lift-slide roller system lifts panels above the track to roll easily. When lowered, the weight of the door, a gasketing system, and multipoint lock provide weather resistance and security. Weiland Sliding Doors | 760.722.8828 | weilandslidingdoors.com