Installation Guide

Step 1. Wall and Door Preparation
IMPORTANT
CHECK DOOR OVERLAP DISTANCE
• While door is fully closed, measure overlap on
side where lock is to be installed.
• For casing less than 1-5/8”, door overlap must
be at least 3”. Align strike with lock.
A. Drywall Opening
B. Opening with Casing greater than 1-5/8” C. Opening with Casing less than 1-5/8”
Choose center hole location based on your
aesthetic preference, so long as it is at
least 1" from the edge.
For drywall opening with 1/2" drywall
(gypsum board), minimum 2" door
overlap is needed to install BD4000
privacy lock. The lock bore center must be
at least 1" from wall edge; align strike
with lock.
Do not install lock on casing that is less
than 1-5/8" wide. Drill lock bore at least
2-1/4" from edge. For this type of installa-
tion, door overlap must be at least 3". Align
strike with lock.
If lock bore center location is 2-1/8" or
more from edge of opening, use stud
finder to ensure there are at least two
studs stacked behind lock bore center.
Extended spindle and fixing screws may
be required. Contact INOX™ to order an
extension kit.
IMPORTANT!
The bore hole on the Jamb side is offset
3.5mm (approximately 1/8”) lower than
wall-side bore.
1/2” Casing 1/2” Dry Wall 1-1/2” Wood x 2
Step 2. Prep Trim Bore – On the Jamb
2.1) Verify wall thickness to ensure you have correct lock and backset
Minimum Wall Thickness:
* BD4214 - minimum thickness 4-1/2”
** BD4312 - minimum thickness 6-1/2”
There is no maximum thickness for either lock.
Remove Barn Door.
Use template to mark pilot hole.
Wall Thickness Stud Size Item No. Backset
4-1/2”+
6-1/2”+
2” x 4“
2” x 6”
* BD4214
** BD4312
2-1/4”
3-1/2”
Trim Face Bore
Jamb
Lock side
2.2)
Choose center hole location based on
your aesthetic preference, so long as it is
at least 1" from the edge.