How does one determine door handing, and what is it? What's a 28 Degree Latch or CF Mechanism? We have these answers and more for you below! These can also be found on our FAQ page.
- Determing handing for door hardware is different than determing handing for carpentry (ordering and hanging doors). If you follow the standard carpentry rules for handing door hardware, instead of following the diagram below, there is a good chance you may end up with a handleset that is handed incorrectly. Please refer to the diagram below and if you have any questions call Customer Service at 866-752-9002 or email us at email@example.com
- HANDING OF DOOR IS ALWAYS DETERMINED FROM THE OUTSIDE:
- The outside of an exterior door is the street or entrance side.
- The outside of a room door is the hall side.
- The outside of a closet door is the room or hall side.
- The outside of a single communicating door is the side from which the hinges are not visible when the door is closed.
CF Mechanism Upgrade
- The CF Mechanism Upgrade provides concealed screws (or fasteners) on the interior side of the rosette. The CF Mechanism Upgrade is also supplied with the 28 Degree Latch.
28 Degree Latch
- The 28 Degree Latch requires less rotation of the handle to activate the latch. The illustrations below show the handle position of a standard latch as compared to a 28 Degree Latch.
What Are The Different Door Functions (Passage, Privacy, Dummy, Entry, Double/Single Cylinder)
- Passage: Active latch with no locking mechanism (the handle is always unlocked). Typical applications are those that do not require privacy such as closets.
- Privacy: Active latch with a locking mechanism. A release key (commonly a pin) can unlock the door from the exterior. Typical applications are those where privacy is required such as bathrooms.
- Dummy: No latch mechanism or locking ability. Typical applications include double closet doors with ball catches, inactive leaf of french doors, and bifold doors.
- Entry (Also Known As Key In Lever/Knob): Active latch with locking mechanism that allows keyed entry. Typical applications are exterior doors and garage service doors.
- Single Cylinder: Manually operated deadbolt with keyed exterior and thumbturn on the interior.
- Double Cylinder: Manually operated deadbolt with both keyed exterior and interior.
- Backset is the distance from the edge of a door to the center of the 2-1/8" bore. The backset will measure either 2-3/8" or 2-3/4". Commonly, interior doors have a backset of 2-3/8" while exterior doors often have 2-3/4" or 2-3/8" backsets. It is important that each door is measured to verify backset prior to order.
- Stands for "Center-to-Center." It is the measured distance between the centers of two holes. For example, many entry doors have two bore holes, one for the deadbolt and one for the knob/lever to latch the door. The C-to-C would be measured from the very center of one bore hole to the other. This not from edge to edge! It is applied the same way for cabinet pulls, just with smaller holes.
- Schlage: Schlage C is the default keyway and among the most popular for residential door locks.
- Weiser: The Weiser keyway is offered as an option for customers needing to match existing Weiser locks within their residence.