Place nails about every 5 inches.
How much of a gap between 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.
This adjustment works well if you have a gap between the french doors or the latch mechanism doesn t connect.
When calculating the width remember there are three gaps between the doors instead of two plus a jamb on each side of the opening.
It s not uncommon for a gap or crack to exist where the two doors come together.
Because one or both of the french doors are moving many traditional weatherstripping solutions just don t apply.
Gaps between a front door and a frame.
French doors can be a weak point for letting moisture light sounds bugs cold air and dirt into your home.
Close the gap between the two doors with insulated molding.
The gap around all the doors and in between the two doors needs to be consistent and as equal as possible.
I ve installed many pre hung interior french doors with great success.
Do this on both doors.
Cover the nail heads with wood putty and sand them smooth.
Unlike interior doors gaps between a front door and a frame must go with the standards not so much due to the possible expansion of a leaf but because of the danger of penetration of cold air and extraneous sounds from outside.