How do I measure the backset for installing an ALLEGION 2821 Series Dummy Lever?

[VonAlejandro]

To correctly install your ALLEGION 2821 Series Dummy Lever, accurately determining the backset is crucial. The backset is the distance from the door's edge to the center of the bore hole for the lever assembly. Here's how to determine the correct backset:

1. Template Placement: Place the provided template on the door's edge at your desired lever height.
2. Marking Hole Centers: Holding the template steady, mark the locations of the 5 hole centers (4 holes of 9mm and 1 hole of 25mm) as indicated on the template, ensuring you measure at the required backset.
3. Drilling Pilot Holes: Drill pilot holes using a 3mm drill bit.
4. Enlarging Holes: Enlarge the four 9mm holes from both sides of the door to the marked locations.
5. Drilling the Larger Hole: Drill a 25mm hole, 10mm deep, on the side of the door where the dummy lever set will be installed.

By carefully following these steps and using the provided template, you'll successfully measure and achieve the correct backset for your ALLEGION 2821 Series Dummy Lever, ensuring a proper and secure installation.