I read in a thread here that "You need 18" clearance above the door
opening to get STANDARD door tracks (15" radius) to install easily."
If I complete the framing of my garage project with two standard top
plates I will come up with 15 1/2 inches from bottom of header
(including trim) and the bottom of the ceiling joists.
Can anyone tell me if 15" radius will still fit in this 15 1/2 inches
or would it be absolutely necessary to go to a 12" radius track? I
guess I am focused on the word "easily" in the quote. It is not to
hard, either, to just add additional layers of top plate, what? two
more courses, to get really close to 18 inches. Might be that is the
As I write this it occurs to me that in my situation the 15 inch radius
track would have to be mounted flush on the surface of the ceiling
whereas usually they are mounted on "stand off" brackets, right?
Of course, if I sheetrock the ceiling I loose another 1/2". Also, note
that the ceiling joists run parallel to garage door.
I plan on installing 7 ft x 9 ft door(s).