Standard Size Hole For Door Lock

Standard door lock hole size.

Standard size hole for door lock. The hole in the doorjamb should measure at least 7 8 in diameter and a minimum of a 1 deep. Here s a step by step guide to installing a new deadbolt lock. The standard bore is 2 1 8. 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.

Through the edge of the door there is a 1 cross bore that extends from the edge of the door through the bore hole. If one wants to replace their locks on doors that have smaller diameter holes there are 2 options. The sizes vary depending on various factors and could be anything from 2 1 8 inches in diameter and more. The bore hole is the large diameter hole where the door knob is mounted.

The center of this hole should be located 2 3 8 inches or 2 3 4 inches back from the edge of the door. Let us get to know more about it over the next few lines. The latch will fit into the 1 inch hole. Ready to get started with the intallation.

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. If you ve decided to change your locks over rekeying you ll want to consider the hole size. To see these measurements in action be sure to view our deadbolt b60 b62 door prep video. Most doors are 2 3 8 backset but some mostly exterior doors have a 2 3 4 backset.

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. 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. There could be bore hole sizes that can be smaller or bigger. The last thing you want to use is a jigsaw.

Many older doors had bores that were been smaller. A bore hole is where the door job is mounted. Most interior doors are prepped with a single boor hole. Lock bore the diameter of the hole for the lock body.

The hole diameters are 2 and 1 8 inch and 1 inch respectively. 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. Bore a 2 1 8 inch hole through the door. The cross bore diameter is 1 inch while the bore hole diameter is 2 1 8 inches.

When changing locks this kind of door uses a combination of a deadbolt and a knob. Most of the current locks require the standard 2 1 8 bore. This cross bore is where the latch is installed. 1 measure from the center of the door knob hole to the edge of the doorway to find the size of the door set.

First doors can usually be re drilled. The standard backset is 2 3 8 or 2 3 4.