Measure the distance from the front of the faceplate to the centre of the Euro cylinder cut out. This is shown as measurement A on Fig 2.1 below. NOTE: This measurement is from the faceplate of the lock NOT the edge of the door as there is often a lip on the edge of the door or the faceplate is recessed slightly into the edge of the door.


3) Centres
Measure the distance from the centre of the spindle hole to the centre of the top part of the Euro cylinder cut out. This is shown as measurement B on Fig 2.1 above. Measurements are taken to the middle of the locking point but allow for 5 - 10mm for accuracy and depending on whether the locking points are fully engaged.


4) Locking Points
Note which locking points you lock has and the order that they are fixed to the strip. Locking points could be any one of the following:
 |  |  |  |  |  |
Roller Cam | Mushroom Cam | Hook | Deadbolt | Finger Bolt/Pin | Wedge Bolt |
5) Distance between Locking Points
Measure the distance from each locking point on the strip to the centre of the spindle. These are marked as C, D, E & F on the diagram below. When comparing your measurements to the measurements provided on this site, you will most often need to add C & D together (Inner Locking Point) and E & F (Outer Locking Point) together. Only the Outer Locking Point is available in the "Refine Search" function.

6) Faceplate (Sometimes referred to as the forend)
a) Measure the width of the faceplate in mm.
b) Check to see if the faceplate has a round, flat or u-rail profile.
 |  |  |
Radial Faceplate | Flat faceplate | U-Rail Faceplate |
7)Lock Operation
There are 5 types of locking operation. These are not available for filtering on the Refine Search function but all details of Lock Operation is included within the details of each lock.
Lift Lever |
 | Locking - Lift the handle upwards to engage locking points.
- Lock the system by turning the key anti-clockwise.
|  | Opening - Unlock by turning the key clockwise.
- Push the handle downwards to disengage the locking points
|
Nightlatch Locking |
 | Locking - Lift the handle upwards to engage locking points.
- Lock the system by turning the key anti-clockwise.
|  | Opening - Unlock by turning the key clockwise.
- Push the handle downwards to disengage the locking points.
- Return the key to withdraw the latch.
|
Key Wind | | | |
 | Locking - Latch engages automatically. Lock by turning the key anti-clockwise. Two rotations will lock the locking points.
|  | Opening - Unlock by turning the key clockwise. Two rotations will unlock the locking points. A further half turn will withdraw the latch.
|
Fast Locking (Europa) | | | |
 | Locking - Lift the handle upwards to engage and lock the locking points. There is no need to turn the key.
|  | Opening - Unlock by turning the key clockwise.
- Push the handle downwards to disengage the locking points.
- Return the key to withdraw the latch.
|
Automatic Locking (AV2) | | | |
 | Locking - Spring loaded hooks automatically throw when the door closes.
- Turn the key to throw the deadbolt.
|  | Opening - Unlock via the connected access control system or with a key.
|