Standard Door Lock Measurements

In the united states there are two common backsets for residential door locks.

Standard door lock measurements.

B the backset the backset measurement is the distance from the centre of the keyhole to the leading edge of the lock. Opening heights 3 0 through 4 11 15 16 centered in door height not frame. 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. If this door is for a shop a router jig is used to prepare it for the faceplate latches.

Pack your locks with a 2 3 8 inch or 2 3 4 inch latch depending on which backset you specify. Continue by measuring the door from left to right. Dummy sets have no latch and are surface mounted so you can install a dummy set wherever you choose on the door. Then you need to measure the width most common width are 2 6.

Standard interior door jamb thickness on pre hung doors is 4 9 16 inches. There are many different case depths but the most common sizes are 64mm and 76mm. The door jamb is the frame that installs in the wall and supports the door via hinges. If you are looking to replace a door you currently have measure the existing door from top to bottom.

How to measure your door properly. Many older doors had bores that were been smaller. Newer comes usually have a width of 30 inches and a standard high of 96 inches. Next you need to determine which direction the door opens in out left right swings.

The sizes vary depending on various factors and could be anything from 2 1 8 inches in diameter and more. Lock bore the diameter of the hole for the lock body. If one wants to replace their locks on doors that have smaller diameter holes there are 2 options. The latch is held securely in its place and the faceplate adds an aesthetic value to your door.

The dimensions of faceplate latches are 2 inches for height 1 inch for width and inch diameter at the corners. Standard door lock hole size if you ve decided to change your locks over rekeying you ll want to consider the hole size. 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. Most of the current locks require the standard 2 1 8 bore.

You also want to measure the thickness of the door. The standard bore is 2 1 8. 2 3 8 inches and 2 3 4 inches. This is the metric equivalent to 2 5 and 3 lock cases from back in the imperial days.