The best way is to add an asterical strip to the outside of.
Gap in french doors.
Nail it to one of the doors using small wood nails so that it overlaps the other door by about one half inch covering the gap.
Over time your french doors can begin to sag and open a small space between the tops of the doors and the jamb.
Use the type of screwdriver that matches the heads on the hinge screws.
The constant opening and closing of the doors can cause the hinge screws to loosen.
That s the extra piece attached to the stationary door where the 2 doors meet in the middle it allows for the stationary door to bolt into the frame top and bottom and also has a lip to stop the moving door and cover the gap between the doors.
With two doors in an opening you need to back bevel each door about 5 degrees.
How to cover a crack between french doors step 1.
The problem seems to be the astragal in these older french doors.
That s the easier way.
If only one door will open regularly.
Place nails about every 5 inches.
Step 3.
Tighten all of the screws in each hinge with a screwdriver.
This adjustment works well if you have a gap between the french doors or the latch mechanism doesn t connect.
Open both of the french doors to expose the screws holding the hinges in place.
Turn the upper hinge adjustment screw to even out the gap.
Do this on both doors.
Stand on the side of the active door where you.
If the gap is a half inch or so then you bring the 2 doors closer together by shimming the hinges with sandpaper.
Paint the entire french door set including the insulated molding for a professional finished look.
Step 2.
Open and close the active door to see which way it swings.
Identify which of the doors is active and which is the stationary door.
Over time the screws on your hinges may come loose and cause your doors to sag.
This is so the two meeting corners do not touch each other.