How do I install a new lock on an old interior wooden door?

1. Do you want to change the interior door lock or to change into a security door lock? If it is an interior door lock, the original lock hole can be used; if it is a security door lock, the original lock hole can not be used, you need to find a carpenter to reopen the hole.

2. This lock can be installed by yourself, it is very simple, you need to prepare the tool is a Phillips screwdriver, a screwdriver these two tools.

3. You take the original lock body on the door to the hardware store to buy a new lock, the purpose of taking the lock body is to tell them that the door of your home was originally used in this size lock body. Then measure out the thickness of the door, remember to tell the hardware store the thickness of your door, so that they can easily give you the screws and lock cylinder.

4. Basically, there is a screwdriver and a cross screwdriver can be changed, it is very simple. Install the screws and you're done.

PS: If there is any doubt you can Baidu HI me, I am engaged in the industry of hardware locks, more understanding.