Adjusting bifold doors

Hm, adjusting the left door to (almost) the same height as the right door makes it difficult to close one door if the other door is closed. It is as if the door opening is too narrow to fit both doors, although both doors are already in the extreme outward positions, i.e. the left door in the far left position and the right door in the far right position. Just a little bit further outward and the thickness of the door would prevent the door from being opened as the door panel can't be rotated around the hinge. The doors were perfect when they were originally installed.

Any further ideas?

It's entirely possible the opening is no long square because houses do settle, lumber dries, etc. If that's the case, then the solution is to trim one (or both doors) slightly to fit the opening.

Well, the title of the thread is now wrong, it changes to 'closet bifold door difficult to close if the other one is closed' although both doors are adjusted to the far left and far right positions. I don't have the tools to shave off say 1/4" from the width of the doors. Wonder how much it would cost to have it done.

If you own a circular saw, check out the Kreg 'Rip Cut' attachment for the saw.

This or this should do the job for you. Don't force the tool. Take your time, press evenly and consistently, and you should get a reasonably even cut. (Note: the links are intended as examples and not as endorsements.)