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How to measure a multipoint door lock

There are a number of configurations of multipoint door locks, therefore ensuring that you have all the correct
measurements is imperative to choosing the correct replacement.

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STEP 1

Note the manufacturer

Look along the length of the lock faceplate for a manufacturer’s stamp. If one is visible, note the name of the manufacturer.

STEP 2

Match the mechanism

Looking at the central mechanism, note which of the following configurations matches that of your current lock. Click on the image to expand.

STEP 3

Look at the secondary mechanisms

Go along the lock faceplate and make a note of the numbers and types of secondary mechanisms. Click on the image to expand.

STEP 4

Measure

Measure the handle/spindle centre and backset as illustrated.
A: Handle/spindle centre Taken from the centre of the keyhole to the centre of the handle/spindle. In this example there are two possible spindle points.
B: Backset The distance from the middle of the spindles to the front face of the lock.

STEP 5

Measure from the spindle

The final step is to measure from the spindle centre to each of the secondary locking points. In the example below there are four - two hooks and two rollers.
A: Spindle centre to top hook Taken from the centre of the handle/spindle to the first secondary top locking mechanism.
B: Spindle to top roller Taken from the centre of the handle/spindle to the second secondary top locking mechanism.
C: Spindle to bottom hook Taken from the centre of the handle/spindle to the first secondary bottom locking mechanism.
B: Spindle to bottom roller Taken from the centre of the handle/spindle to the second secondary bottom locking mechanism.
Once you have these measurements, visit our website where you can filter our selection by the manufacturers and sizes available to match your needs.
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