REnovations - replacing some interior doors and door frames

I have spent the last few hours reviewing the Q's & A's regarding the installation of replacement doors, however I am still not comfortable with any answer I have seen regarding -- HOW DOES ONE REPLACE AN EXISTING DOOR AND DOOR FRAME (ASSUME PRE HUNG assemblies) WITHOUT IMPACTING THE FINISH OF ANY EXISTING FLOORING, that is where the flooring meets the frame, and the flooring is "finished". I can rationalize a solution if the existing and repalcement door and frame are of the exact same size.

Is the simple solution to merely calk whatever gap exists after the installation of the new door and frame, or is there some other "majic" out there regarding installation techniques.

I consider myself an accomplished "handyman" and some would say professional finisher, but I have never been challanged to "replace" doors and frames into existing structures. I don't have any problems installing pre hung doors in new installations.

Any help or hints gladly accepted

Gary I

 

Interior or exterior doors ?

 

Ah, yes......I see the title of the post now.....excuse me


Ok interior doors....sometimes the finished flooring was installed first, sometimes after and simply butts up the old jamb and casing.

Yeah, caulk sometimes if the new one is going to be painted. I guess I would also try to make the new one sit down on and come out far enough to cover any gap. I don't recall much problem with the flooring...usually my problem is with where the old base met the casing......a lot of times I can't get the casing on a new door to go back to the same line and I have a gap there......usually means new basebd.