Fit a door lock

In plain words

Steps

1. 01

   Measure the old lock

   Measure the lock body: height, depth, and the door edge to the keyhole centre. Bring it to the counter and we match it.

2. 02

   Take the old lock out

   Unscrew both handles, then the two screws on the door edge. Ease the body out of the slot.

3. 03

   Cut a new door

   On a new door, mark the body on the edge about 1 m from the floor. Drill and chisel the slot to the depth of the body.

4. 04

   Fit the body

   Slide the body in with the sloped side of the latch facing the way the door closes. Screw it to the door edge.

5. 05

   Handles and keyhole

   Push the spindle through, fit the handle plates on both sides and screw them on. Check the key turns easily from each side.

6. 06

   Fit the striker

   Close the door gently and mark where the latch and bolt meet the frame. Chisel a shallow recess and screw on the striker plate.

7. 07

   Test it open, then shut

   With the door open, try every key from both sides. Then shut the door and try it again.

8. 08

   If the latch misses

   A door that has dropped will not latch. Tighten the hinge screws, or change the hinges: 4″ SS butt hinges, three to a door.