In framing the space for a door, what is the term used for the door jamb and space for adjustment?

The term used for the door jamb and the space allotted for adjustment is known as the rough opening. This term refers to the framed area in a wall where a door or window will be installed. It is important because the rough opening provides space for the door frame, allowing for shimming and leveling during installation to ensure a proper fit.

The rough opening typically exceeds the dimensions of the door itself to accommodate the doorframe, any necessary hardware, and additional space for adjustments due to variations in wall alignment or floor level. This ensures that once the door is installed, it operates correctly without obstruction, and it accounts for any slight imperfections in the wall structure.

Understanding the rough opening is fundamental in framing and construction, as it directly influences the overall durability and functionality of the door installation.