Generally this will be a 2040 by 920 or 820mm door.
Standard entry door frame size.
30 and 32 inches also available.
The reveal size is the actual opening inside the frame that the doors will sit in.
If your door opening is an unusual size simply take your measurements to a home depot store near you and an associate will help you choose the right door for your home.
Is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32 inch widths.
Now all you need to know is how to properly frame your door rough opening.
For example let s say we want to frame a 6 8 x 3 0 front entry door.
96 inches or 8 ft.
The height is 80 which is considered 6 8 or 6 8 add 2 1 2 to the actual door height and frame it 82 1 2 high.
Standard exterior doors most building districts adhere to the international residential code which requires the main entry door of a house to be at least 36 inches wide and 80 inches high.
The door frame manufacturer will then add their standard clearances to these dimensions to give what is called the reveal size.
The most basic starting point is the door size that a frame is being built to fit.
The standard height remains the same however.
So the best standard exterior door sizes are in width from 36 inches to 42 inches and for double doors they are from 72 inches to 84 inches.
Entry doors are usually 36 inches wide.
The height of these entryways are typically 80 inches but can be as much as 84 inches to even 96 inches.
Standard entry door measurements.
The rough opening should be at least inch wider and inch taller than the door frame.
Standard door frame size the average measurement of 36 by 80 inches refers to the door panel itself not including the frame.
80 inches 6 feet 8 inches thickness.
If you re going to frame a rough opening for a door then you ll need to know the unit size.
Standard door rough openings.
So in the case of a 2040 x 920mm door the standard reveal size would be 2055 x 924mm.
While a door width of 36 inches is oversized for an interior door it s the standard size for front doors.
The standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.
So if you have a bedroom door that is 30 wide which is considered a 2 6 or 2 6 door just add 2 to the width and frame it 32 wide.