Lock bore preparation*
* you can use your old door to transfer the shapes and sizes
for bore and backset within the hinges preparation section
or, follow the guide below:
1) Measure 36” from the bottom of the door and put the mark with
pencil.
2) Using a square (speed square), measure 2-3/8” from the edge of
the door and put the mark according to 36” height mark
with a pencil for lock bore backset pilot hole.
Always check the lock’s manufacturer
instruction. Dimensions for lock bore backset can vary.
3) Using a square (speed square) put the mark in the
middle of the door’s edge for latch hole according to measurements.
(36” from the bottom and equal measurement from each side of the door)
4) Use 1-inch hole saw to bore latch hole in door edge