• Privacy: Locks but has access to unlock from the outside via a small hole or slot to insert a simple tool. Privacy locks do not offer security. Used on bedroom and bathroom doors.
• Passage: Latches door closed and does not lock. Used on hall and bedroom doors.
• Dummy: Used as a door pull. Most commonly used on the inactive door on double doors or wardrobe doors.
A dimension from the edge of the door to the center of the cylinder, knob or lever. Most common backset is usually 60mm or 70mm.