Interior Door Rough Opening Size Chart

The standard height of the rough opening for a door is the door height plus 2 5 8 inches.

Interior door rough opening size chart.

Add 2 to 2 1 2 inch to the measurement of the door s width to determine the total width of the rough opening. This will give you room to space the door frame off of the sub floor. If you have questions give us a call at 888 458 5911. The 6 8 stands for 6 8 tall and the 3 0 stands for 3 0 wide.

Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide. Standard door rough openings. While a standard door height is 80 finished opening. If you re going to frame a rough opening for a door then you ll need to know the unit size.

For fire rated openings drywall must extend at least 1 2 into frame. For example let s say we want to frame a 6 8 x 3 0 front entry door. Refer to the charts below to determine what size of door you will need. Just add 2 to the width of the actual door size.

This takes into account the thickness of a standard 3 4 inch doorjamb on each side. The difference between a rough opening and finished opening is usually 2 3 inches. The height of common doors is 6 feet 8 inches. Framing rough opening sizes are really quite simple.

For reference standard interior door widths range from 24 36 finished opening. Getting the rough opening size right the first time will save you from frustration when installing your doors.