Fitting New Front Door Lock

Create a mortise for the plate around the latch on your door using the technique described above.

Fitting new front door lock.

Insert the exterior part of the lock into the door by feeding the long metal piece through the opening in the center of the bolt. Insert the new bolt into the opening on the edge of the door and fasten it to the door with the provided screws. Usually the backset measures 2 3 8 inches or 2 3 4 inches. Poor alignment can occur because your house has settled or shifted over time the door frame is old or warped or the door is sagging on its hinges.

After you ve fitted the lock in the door you need to fit the strike plate to the door frame. The distance between the edge of the door and the center of the lock hole. Then use a drill to make the necessary holes for installation of your doorknob door handle and lock. Turn the key so the locking bolt protrudes from the lock and hold the door against the door frame.

Create a mortise and holes for your lock and door handle. Before you begin make sure you have a new door lock set and a screwdriver or drill. How to install a door lock door knob deadbolt. Normally you unscrew the lock body first undo the screws in the plate below and take out the cylinder lock from the other side.

Clean and sand down the paintwork just around the lock and fill any scratches you can repaint later if necessary. Hold the door in the open position and use either the manufacturer s template if supplied or the body of the lock to mark the mortice s position on the edge of the door. Set a marking gauge to half the thickness of the door fig. One possible reason for this is that your door isn t properly aligned.

This process will vary somewhat based on the doorknob you are installing. Before purchasing a lock measure your door s backset cross bore and thickness to ensure you find the right fit. Just be sure to purchase the same brand of lock as the existing one so that it will fit into the same holes without alterations to the door. 8 and score a line down the door edge to mark the position of the lock.

Also remove the striking plate from the door frame. Step 1 purchase a new lock. Installing the new lock is an easy task that should only take a few minutes. First mark out the place where the strike plate has to be fitted.