We offer both single bore and double bore options. Double bores are typically used on Exterior doors, with a lockset with deadbolt. Our bores include mortising the edge of the door for the latch (latch and dead bolt for double bore), and mortising the “strike” on the jamb leg where the latch inserts.
The first bore is always 36” from the bottom of the door, and the bore hole diameter is always 2-1/8”. For double bore options, the distance between the two bore holes is always 5-1/2” center to center (from the center of the diameter of one bore to the center of the diameter of the other bore). If these bore positions and dimensions do not match your desired hardware, please indicate in the notes section.
Available “backsets” (the distance from the edge of the door to the center of the bore diameter) are:
Single Bore, 2-3/8” Backset
Single Bore, Latch Mortis
Single Bore, 2-3/4” Backset
Double Bore, 2-3/8” Backset
Double Bore, Latch Mortis
Double Bore, 2-3/4” Backset