On Jun 10, 9:07 pm, Jay Edgar wrote:
I will be installing closet doors in a bedroom. I've decided to put in
two bi-fold doors. My challenge: the doors are 48" wide, by my opening
is 51-1/8" wide. I've already installed the trim... maybe a mistake.
Is there a way I can put a cheater board in or something?

Suggestions are most welcome.

Remove the casing, resize the jamb, and redo the casing. You'll only
have to buy three longer pieces - the jamb header and the two header
casings. Doing anything else is likely to take as much time and won't
look as good.

In future you might want to consider prehanging the doors, attaching
the outside casings and installing it as a unit.

R