I want to remove our 4-feet patio doors to check and possibly replace
the rollers. However I just noticed that the top of the door frame
seems to be sagging a bit, just enough to make it impossible to lift
the doors out.
I don't want to force things and possibly shatter the glass.
My only solution at this point is to use a jack to push the middle of
the frame up the distance that will allow the door to lift.
What are your thoughts on this? Any other suggestions on removing