I've got a double set of front doors, I want to install a new pre-hung door, the rough opening is 62 inches wide, with a standard 80 inch high door. I probably want to put in a single 36 inch door with a side panel on each side. I know how to take out the old door, just need direction on how to properly install the new prehung ( do i start shimming from the top? )
Thanks ...Shred