I have good carpentry skills and thought if I could purchase a 4' finish dimension french set, I could install within the current framework of the old unit and retain the two outside fixed windows.
Just wondered if anyone has ever seen or heard of anyone attempting such a thing.
It's not the "attemping" part you're interested in, it's the successful completion.
Is the middle door section is independent of the side panels?
Can you order a prehung uniit to fit the opening left when you remove the sliding unit?
If not, you need to deal with certain issues
1. The door sizes. Are the sliders 6'8" doors?
2. The slider sill.
3. Weatherstripping the doors.
4. Is the frame strong enough to hold hinged doors they were't designed for?
A prehung exterior unit will address all these issues.
Ron