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How to fit a mortice lock from scratch.

Written by :

Ollie

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Fitting a mortice lock from scratch involves several steps. Please note that this is a general guide, and it’s essential to refer to the specific instructions provided by the lock manufacturer. Additionally, if you’re unsure, consider consulting a professional locksmith for assistance. Here’s a basic guide:

**Tools and Materials:**
1. Mortice lock and keys
2. Chisel set
3. Pencil
4. Screwdriver
5. Hammer
6. Wood screws
7. Tape measure
8. Combination square

**Instructions:**

1. **Choose the Right Location:**
– Select an appropriate height for the lock, typically around waist level.
– Use the combination square and pencil to mark the centerline of the door.

2. **Mark the Keyhole and Faceplate:**
– Position the lock on the door, aligning it with the centerline.
– Mark the keyhole and faceplate locations on the door.

3. **Mark the Depth and Width:**
– Use the lock’s instructions to determine the correct depth and width for the mortice.
– Mark these dimensions on the door, centered on the keyhole mark.

4. **Cut the Mortice:**
– With a sharp chisel, start by creating a series of shallow cuts along the marked lines.
– Gradually increase the depth of the cuts until you reach the desired depth for the mortice.
– Repeat the process for the width.

5. **Test the Fit:**
– Insert the lock into the mortice to test the fit.
– Ensure the key turns smoothly and the faceplate sits flush against the door.

6. **Mark and Install the Strike Plate:**
– Close the door and mark the position of the lock on the door frame.
– Chisel out a recess for the strike plate on the door frame.

7. **Install the Lock:**
– Insert the lock into the mortice, ensuring it fits securely.
– Use the provided screws to fix the lock in place.
– Install the strike plate on the door frame using screws.

8. **Test the Lock:**
– Close the door and test the lock with the key.
– Ensure the latch engages smoothly and the door locks securely.

9. **Adjust as Needed:**
– If necessary, make minor adjustments to the mortice or strike plate for a perfect fit.
– Lubricate the lock mechanism with graphite or silicone spray.

10. **Secure with Additional Screws:**
– For added security, consider installing screws through the lock plate into the door for reinforcement.

Remember to follow the specific instructions provided by the lock manufacturer, as different locks may have variations in installation procedures. If you encounter difficulties, it’s advisable to seek professional assistance.

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