If you're looking to replace a tubular mortice latch in the UK, it's important to measure the dimensions of the latch accurately to ensure that you purchase the correct replacement part. In this blog, we'll take a look at how to measure a tubular mortice latch in the UK, step by step.

Measure the “BACKSET”. The backset is the distance from the edge of the door to the centre of the latch. This measurement is important because it determines how far your handles will be from the edge of the door when they are fitted. To measure the backset, measure from the edge of the door to the centre of the hole where the latch is fitted.

Measure the Case Depth. The case depth is the distance from the front of the faceplate to the back of the latch case. This measurement is important because it determines how much of the door you will need to cut out to fit your latch. Some glazed or panelled doors may not have enough space to fit a longer latch. To measure the case depth, measure from the front of the latch to the back of the lock case.

Measure the Forend Size. Most forends are rectangular, they are the plate that covers your latch and sit in the middle of the door. If replacing an existing latch this size is important because it determines whether you will need to make any adjustments to the existing cut out in the middle of your door.

Check the Handing. The handing of the latch is also important, as it determines which way the latch will open. All Handle King locks and latches are fully reversible which means you don’t need to worry about handing when purchasing from us.

Check the Handing. The handing of the latch is also important, as it determines which way the latch will open. All Handle King locks and latches are fully reversible which means you don’t need to worry about handing when purchasing from us.

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