The height for all passage doors must be a minimum of 80 inches and the standard width sizes for interior doors are 24 28 30 32 and 36.
Interior door opening height.
For a slab door measure the width height and thickness of the door.
The height of common doors is 6 feet 8 inches.
Just add 2 to the width of the actual door size.
Although custom doors do cost more money.
The minimum recommended door width to allow persons with disabilities to pass through is 36 inches.
For a pre hung door measure the width and height of the slab the rough opening space between the studs with no door installed and the thickness of the jamb.
On average you can expect to pay roughly 20 25 percent more for a custom door.
Standard widths for interior doors are 24 28 30 32 and 36 inches while the height must be a minimum of 80 inches.
The additional room allows for a 3 4 inch top jamb a shim.
Framing rough opening sizes are really quite simple.
Custom doors can be made to match any size door opening.
An 80 inch door is called a 6 8 door pronounced six eight.
This will give you room to space the door frame off of the sub floor.
The standard height of the rough opening for a door is the door height plus 2 5 8 inches.
Getting the rough opening size right the first time will save you from frustration when installing your doors.
As a home improvement contractor the majority of doors i replace are standard interior size doors.