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Upvc door lock measurements.
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.
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.
In the united states there are two common backsets for residential door locks.
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Euro cylinder locks are now measured by the ts007 1 star 2 star or 3 star ratings the old british standard kite mark rating is no longer a real measure of true security in modern euro lock design in our opinion but all of the anti snap euro locks we sell have the bs kite mark it s such a basic level compared to the ts007 rating.
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Upvc door lock measuring guide measure your door lock correctly to ensure you order the correct replacement lock.
2 3 8 inches and 2 3 4 inches.
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.
There are a number of key dimensions including the pz backset and more.
If measurement a 35mm and measurement b 45mm then the size required is referred to as 35 45 80mm overall.
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Do not measure to the end of the black cam ring.
If measurement a equals 45mm and measurement b equals 55mm then you require a 45 55 cylinder.
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.
The backset is the distance from the edge of the door to the center of the 2 1 8 inch bore hole.
Multipoint upvc door lock measuring guides.
Measure from the end of the euro cylinder lock barrel to the centre of the screw hole each side.
Check measurements measure the overall length required either from end to end or between pencil marks if marks were made.
On multipoint locks these are normally in 5mm increments such as 30mm 35mm 40mm 45mm 50mm and so on.
The overall length should equal the sum of measurements a and b.
Measure from one end of the cylinder to the central screw hole.
Pack your locks with a 2 3 8 inch or 2 3 4 inch latch depending on which backset you specify.
Do not measure the thumbturn only to the barrel end.
How to measure your upvc letterbox.
