Exterior Door Rough Opening Size Chart
Keep this in mind.
Exterior door rough opening size chart. Just add 2 to the width of the actual door size. As you can see the standard exterior door size rough opening is a full 2 inches wider than 36 inches and 2 1 8 inches higher than 80 inches. Of frame is 40 x 86 as the frame face is 2 around all 3 sides. This will give you room to space the door frame off of the sub floor.
These doors should be installed by a knowledgeable pro because the rough in opening in the wall will have to be enlarged. If you re going to frame a rough opening for a door then you ll need to know the unit size. Add 2 to 2 1 2 inch to the measurement of the door s width to determine the total width of the rough opening. Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide.
You should add 2 1 2 to the height of the actual door. Framing rough opening sizes are really quite simple. This takes into account the thickness of a standard 3 4 inch doorjamb on each side. Frames that butt wall block or exterior wood stud a opening width 4 1 2 b opening height 2 1 4 the rough opening would be 40 1 2 x 86 1 4 for a 3 0 x 7 0 door frame.
The 6 8 stands for 6 8 tall and the 3 0 stands for 3 0 wide. Use shims and or caulk to seal gaps between wall and frame. The rough opening size is the construction size with the side lumber studs and header. You can also order a custom size pre hung door.
Standard door rough openings.