Add one side half deadbolts to the top and bottom of each door.
How to lock french doors open.
Access when your french doors are fully open you should have full access to the width of the opening.
If the doors cannot open at all use a flashlight to check the gap between the doors and the frame for anything amiss.
Install a commercial grade double sided deadbolt into the active side of the door or alternatively.
If you can open your french doors you can check the hinges as well as the door handle and fastening.
The three point system locks the door to the head jamb and the sill instead of just to each other.
Interior french doors with bore holes for rooms you would like to be able to lock or just prefer to have a working knob or lever that latches you will want to purchase french doors that are already drilled with a cross bore hole on one side and a latch bore on the other.
But you will be limited by the maximum leaf size generally around 900mm so a maximum opening with both doors open would be about 1800mm wide.
The burglar can then open the door from the inside by reaching the handle.
On top of that french doors often have a euro cylinder lock which can be easily snapped.
Make sure to drill the frame and the floor so the slide bolt can glide vertically.
But for smaller openings french doors are generally considered to be more desirable.
French doors are hinged glass double doors that open from the center and contain glass panes on either side.
So to secure a french door you need to reinforce the glass.
Hanging these doors involves a similar process to hanging an entry door.
Step 2 spray the inside mechanics of the french door knob thoroughly using canned air duster to dislodge any dust or other large buildup.
Test the french doors by swinging them back and forth to check for resistance or any strange noises.
Disassemble the door knob that contains the lock on the french doors using a screwdriver to loosen and remove the bolts so that each half falls away from each other.
To do this we.
Install a double side high security deadbolt into the active side of the french door.
They are often an attractive style because they leave ample symmetrical space when open giving a more grandiose feeling than a single pane or sliding door.
Let s say the cross bore hole is on the right handed door.
For security always look for french patio doors with a three point locking system.