How to choose the correct rough opening size for door frames?

The size of the rough opening depends on the door frame used, the door design, and the actual dimensions of the door (width and height).

First, determine which type of door frame you will choose for interior doors, whether a classic adjustable or concealed frame. In the case of technical doors, you choose between a fire-rated adjustable and a steel frame.

In the menu, select the button that corresponds to the door design:
Adjustable door frames (rebated, all-glass, sliding, non-rebated, reverse), Concealed door frames (non-rebated, reverse), Fire-rated and steel door frames (fire-rated adjustable and steel frames and steel frames with RC2 and RC3 security certification).