Installing adjusting and removing bifold doors is fairly simple because the doors connect to a track.
How lock a bifold door.
Slide the lock off of the folding section when you want to unlock the door and slide it back on to re lock.
Bifold doors slide back with ease allowing you to keep the interior of your closet hidden and creating a clean look to any bedroom.
The heft of the doors is what keeps them from shuddering when you open them.
To install a top mounting bifold door lock open the door and place the lock on top of one side.
Set the lock aside.
An actual strong lock would be a bar across the door on the inside it would hang on the inside main hinge side of the doorframe and then latch into something on the other side with the metal or wood bar blocking the middle hinge in the process.
Slide the lock up until the end of the bolt.
Insert a padlock through the hasp to keep the door locked except when opened with a key.
Close the door and slide the lock over to cover the door s folding section.
The lock body itself should cover the folding portion of the lock.
Install a hasp so that one end sits on one side of the folding section and one sits on the other.
What makes them look good and work well are a solid heavy construction and sturdy and carefully adjusted hardware.
For a simple single bifold door lock consider using a padlock.
It s just a little plastic thing that slips over the top of the door at the hinge part so that the hinge can t bend.
There s no effective way to lock a bi fold door as david said you can just lift a bifold door and take it off the tracks.
Mark the door at the locations of the screw holes in the lock with a felt tip marker.
Bifold doors are much like any doors only connected into pairs with hinges and hung on a track.
Loosen the set screw on the top bracket and slide the bracket slightly along the track to adjust the space between the top of the doors.
Then retighten the screw close the doors and check the fit.
So if you just want a deterrent you could use a baby proof bifold door lock.
Install 3 inch long surface bolts at the upper portions of the edge bands of the innermost doors one at a time.