In most cases the door set which is inside of the door and controls the door latch.
Standard size hole for door lock.
When changing locks this kind of door uses a combination of a deadbolt and a knob.
There could be bore hole sizes that can be smaller or bigger.
A bore hole is where the door job is mounted.
The cross bore diameter is 1 inch while the bore hole diameter is 2 1 8 inches.
This cross bore is where the latch is installed.
The latch goes through into the large bore hole and then the door knob is mounted the backset is the distance from the edge of the door to the center of the large bore hole.
1 measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.
The hole in the doorjamb should measure at least 7 8 in diameter and a minimum of a 1 deep.
Lock bore the diameter of the hole for the lock body.
It therefore uses two pairs of cross bores and bore holes placed in the same vertical line and 5 5 inches from one center to the other.
Many older doors had bores that were been smaller.
Most doors are 2 3 8 backset but some mostly exterior doors have a 2 3 4 backset.
Through the edge of the door there is a 1 cross bore that extends from the edge of the door through the bore hole.
Standard door lock hole size.
To see these measurements in action be sure to view our deadbolt b60 b62 door prep video.
The standard sized bore hole is 2 1 8 in diameter.
Bore a 2 1 8 inch hole through the door.
The standard bore is 2 1 8.
Most of the current locks require the standard 2 1 8 bore.
The standard backset is 2 3 8 or 2 3 4.
The latch will fit into the 1 inch hole.
You need two different hole saws to create the perfectly round holes in the face of the door and the smaller hole in the edge of the door.
The center of this hole should be located 2 3 8 inches or 2 3 4 inches back from the edge of the door.
First doors can usually be re drilled.
The last thing you want to use is a jigsaw.
The hole diameters are 2 and 1 8 inch and 1 inch respectively.
Replacement locks it s best to start with a fresh door if you are trying to install a new deadbolt lock rather than trying to patch an old hole and drill out a new one for the lock assembly.
If one wants to replace their locks on doors that have smaller diameter holes there are 2 options.
Here s a step by step guide to installing a new deadbolt lock.
Ready to get started with the intallation.
Let us get to know more about it over the next few lines.
This is the backset dimension bore a 1 inch hole in the edge of the door located on the centerline of the 2 1 8 inch hole.
Most interior doors are prepped with a single boor hole.
Most deadbolt assemblies are a standard size but you ll need to read the instructions or measure the assembly to choose the correct hole saw bit.
