I’ve just finished replacing all the doors in my condo and another thing to keep in mind is fitting the exact dimensions. If you’re going pre-hung you should have more flexibility, but if you’re keeping the door jambs and just getting new door slabs then you’ll want to measure very precisely. I assumed mine were close enough to standard widths 24”, 30” etc. and they were slightly smaller so I ended up having to trim a quarter inch off the doors to make them fit.
I’ve just finished replacing all the doors in my condo and another thing to keep in mind is fitting the exact dimensions. If you’re going pre-hung you should have more flexibility, but if you’re keeping the door jambs and just getting new door slabs then you’ll want to measure very precisely. I assumed mine were close enough to standard widths 24”, 30” etc. and they were slightly smaller so I ended up having to trim a quarter inch off the doors to make them fit.