http://www.sawkerfs.com/Rough_Openings_For_Doors.html just 2'8" in width http://www.sawkerfs.com/Rough_Openings_For_Doors.html http://www.sawkerfs.com/Rough_Openings_For_Doors.html http://www.sawkerfs.com/Rough_Openings_For_Doors.html http://www.sawkerfs.com/Rough_Openings_For_Doors.html Door Openings Sawkerfs: Homebuilding Information and Planning