||09-10-2011 01:26 PM
Did these come with a new pre-hung frame around them or are you trying to use the existing door frame? Is the new frame level and square including the floor span underneath? French doors can be tricky. You sometimes have to jack up the floor joist under them to square and level the floorspan. Not trying to be insulting by the way but many forget to check for level/square along the floor and just square and level the header and sides of french doors. You would not be the first person to get french doors and new frame the wrong size for an opening either. This would leave you with a gap in the middle.
As mentioned, the instructions for a new frame and doors should have come with adjustment instructions.