2 3 8 inches and 2 3 4 inches.
Upvc door lock measurements.
On multipoint locks these are normally in 5mm increments such as 30mm 35mm 40mm 45mm 50mm and so on.
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If you need to buy a replacement multipoint lock for your upvc door it can be a confusing process with so many brands on the market to choose from and lots of dimensions to make note of.
Do not measure to the end of the black cam ring.
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Pack your locks with a 2 3 8 inch or 2 3 4 inch latch depending on which backset you specify.
The overall length should equal the sum of measurements a and b.
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Take both measurements in mm most cylinders tend to be offset.
Multipoint upvc door lock measuring guides.
There are a number of key dimensions including the pz backset and more.
Do not measure the thumbturn only to the barrel end.
Upvc door lock measuring guide measure your door lock correctly to ensure you order the correct replacement lock.
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If measurement a equals 45mm and measurement b equals 55mm then you require a 45 55 cylinder.
Shipping times on all uk orders for multi point locks are 24 48 hour delivery via dhl.
Exactly the same as with all locks the backset measurement is the distance from the front face of the lock to the centre of the keyhole and or follower on multipoint locks these are always in line so both should measure the same.
How to measure a multipoint lock.
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Measure from the end of the euro cylinder lock barrel to the centre of the screw hole each side.
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Measure from one end of the cylinder to the central screw hole.
If measuring a dl30 3 star anti snap door lock do remember the outer size is the anti snap size so is not a reversible size.
In the united states there are two common backsets for residential door locks.
So to make it easy we ve pulled together the following easy to follow guide which will help you identify the model you currently have so that you are ready to order a.
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The backset is the distance from the edge of the door to the center of the 2 1 8 inch bore hole.