1. The opening provided for the installation of a pre-hung sauna door consisting of wood framing and located in the exact area where the door is to be installed. Commonly referred to by the construction industry and in print as R.O. 2. The overall width of a door including its jamb material
The size of the actual hole in the wall where the door and jamb will be installed. A measure from the first vertical stud to next for the width, and from the floor to the first horizontal stud (ie top to bottom) for the height. The size of the Rough Opening is generally at least 1/2” larger than the size of the door jamb/frame to be installed.
The opening built into a frame wall to receive a window or door unit. It is formed with a header along the top that’s supported by jack studs on each side. The rough sill at the bottom is supported by cripples. A rough opening is generally greater in width and height than the window or door unit.