This is also done on single doors so you can get the 1 8 gap at closing between the door and frame.
Interior french door gap.
Place a piece of cardboard over the hinge strike plate and trace it out.
French doors can be a weak point for letting moisture light sounds bugs cold air and dirt into your home.
Remove hinge from jamb one at a time top to bottom 2.
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Do this on both doors.
Re attatch the hinge with the cardboard trace to the jamb.
The interior french door jambs need to be parallel.
The cardboard behind the hinges pushes the door out further as a result minimizing the reveal in between the 2 doors.
French doors can be a weak point for letting moisture light sounds bugs cold air and dirt into your home.
It s not uncommon for a gap or crack to exist where the two doors come together.
With two doors in an opening you need to back bevel each door about 5 degrees.
This is so the two meeting corners do not touch each other.
Turn the upper hinge adjustment screw to even out the gap.
A 1 2 gap is much too large.
Since the actual doors in your new french doors are undoubtedly perfectly square this means that if the reveal or spacing in between the doors and the frame are equal then the overall door frame is square.