Standard Size Hole For Door Lock

Here s a step by step guide to installing a new deadbolt lock.

Standard size hole for door lock.

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. Many older doors had bores that were been smaller. If one wants to replace their locks on doors that have smaller diameter holes there are 2 options. When changing locks this kind of door uses a combination of a deadbolt and a knob.

If you ve decided to change your locks over rekeying you ll want to consider the hole size. 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 latch will fit into the 1 inch hole. Bore a 2 1 8 inch hole through the door.

Standard door lock hole size. The hole in the doorjamb should measure at least 7 8 in diameter and a minimum of a 1 deep. 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. 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.

This cross bore is where the latch is installed. The standard sized bore hole is 2 1 8 in diameter. Most interior doors are prepped with a single boor hole. There could be bore hole sizes that can be smaller or bigger.

The last thing you want to use is a jigsaw. The sizes vary depending on various factors and could be anything from 2 1 8 inches in diameter and more. Most of the current locks require the standard 2 1 8 bore. Most doors are 2 3 8 backset but some mostly exterior doors have a 2 3 4 backset.

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 bore hole is the large diameter hole where the door knob is mounted. Ready to get started with the intallation. Lock bore the diameter of the hole for the lock body.

Let us get to know more about it over the next few lines. The standard backset is 2 3 8 or 2 3 4. In most cases the door set which is inside of the door and controls the door latch. First doors can usually be re drilled.

The cross bore diameter is 1 inch while the bore hole diameter is 2 1 8 inches. The standard bore is 2 1 8. Through the edge of the door there is a 1 cross bore that extends from the edge of the door through the bore hole. The hole diameters are 2 and 1 8 inch and 1 inch respectively.

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. 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.