Can anyone tell me what the RO should be for a 18×8 garage door. The width is already set into the foundation of course and I’m sure the concrete guy is correct there, but I am unsure about the height. Would like to get that part framed tomorrow. I forgot to ask the lumberyard rep when he sized for the header…
many thnks!!!
Replies
I think I found the answer on the manf site. Garage door RO = door size, right?
Right!
Yeah, it's the door size - because the door fits "behind" the rough opening, not actually in it, like a swinging door.
Forrest
7'11-1/2" RO
That gives plenty of door for the weatherstripping to seal up against.
My Mommy says I'm special.
Do you want the RO or the jamb spacing? It never hurts for the RO to be larger -- you can always shim.
We would create a finished opening of exactly 18 x 8.
blue