Standard Interior Door Opening

Standard width can range from 24 to 36 depending on the size of the doorway and the materials you want to use.

Standard interior door opening. Standard inside doors must always be at least 80 tall if not taller. The standard height of the rough opening for a door is the door height plus 2 5 8 inches. The 6 8 stands for 6 8 tall and the 3 0 stands for 3 0 wide.

The additional room allows for a 3 4 inch top jamb a shim. Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide. This is the minimum width required for a passage door.

On most prehung doors it will say the standard interior door size as well as which direction it will swing either right hand swing or left hand swing. For example let s say we want to frame a 6 8 x 3 0 front entry door. Standard door rough openings.

Be sure that you know which direction you want your door to swing. Standard interior door width is 32 inches. If you need to build an accessible doorway the minimum width should be 36.

If you re going to frame a rough opening for a door then you ll need to know the unit size. Pre hung doors are doors that are already set in a door jamb and are ready to be installed. The height of common doors is 6 feet 8 inches.