Because french doors have no center frame or support they are very weak in the center.
Securing wooden french doors.
For doors with a bolt that slides to lock along the top and bottom of the door you can permanently lock the door by drilling a hole into.
The fixed door on many french doors is held closed by a pair of barrel bolts that sink into the top jamb and threshold of the doorway.
To do this we.
When french doors open outward the hinges are exposed on the outside.
French doors are difficult to secure for several reasons involving the following weak spots.
This alone will make it a lot more difficult for a burglar to force the doors open.
The best french door security will have a 3 point locking system.
For doors that come as a pair consider locking securing one of them permanently.
However a deadbolt that locks both doors together and single sided deadbolts in the top and bottom of both doors are a good combination for securing both doors.
Add one side half deadbolts to the top and bottom of each door.
Three point locking mechanisms are best for french doors.
Out of all the locking options to secure a french door a single sided deadbolt is the best option.
This means anyone can remove the pins and take the doors off the hinges.