Most of the current locks require the standard 2 1 8 bore.
Standard door lock measurements.
This is the metric equivalent to 2 5 and 3 lock cases from back in the imperial days.
There are many different case depths but the most common sizes are 64mm and 76mm.
If you are looking to replace a door you currently have measure the existing door from top to bottom.
If this door is for a shop a router jig is used to prepare it for the faceplate latches.
Dummy sets have no latch and are surface mounted so you can install a dummy set wherever you choose on the door.
The door jamb is the frame that installs in the wall and supports the door via hinges.
B the backset the backset measurement is the distance from the centre of the keyhole to the leading edge of the lock.
A bore hole is where the door job is mounted.
The latch is held securely in its place and the faceplate adds an aesthetic value to your door.
You also want to measure the thickness of the door.
The standard bore is 2 1 8.
The dimensions of faceplate latches are 2 inches for height 1 inch for width and inch diameter at the corners.
Lock bore the diameter of the hole for the lock body.
How to measure your door properly.
Installers typically drill the hole centered 36 inches above the floor if not specifically instructed to do so differently.
All standard bored locks ansi 115 2 161 61l type for mortise lock ansi 115 1 86 type all locations must be altered 3 8 lower and standard strike asa type.
In the united states there are two common backsets for residential door locks.
Continue by measuring the door from left to right.
Standard door lock hole size if you ve decided to change your locks over rekeying you ll want to consider the hole size.
The sizes vary depending on various factors and could be anything from 2 1 8 inches in diameter and more.
2 3 8 inches and 2 3 4 inches.
Standard interior door jamb thickness on pre hung doors is 4 9 16 inches.
Many older doors had bores that were been smaller.
Opening heights 3 0 through 4 11 15 16 centered in door height not frame.
Then you need to measure the width most common width are 2 6.
If one wants to replace their locks on doors that have smaller diameter holes there are 2 options.
To measure your existing door you need to take a measuring tape and measure from the bottom of the door to the top of the door most common doors measure.
The international building code has established doorknob height between 34 and 48 inches above a finished floor.