Exterior Door Rough Opening Size

Keep this in mind.

Exterior door rough opening size.

Rough opening brickmould dim. Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide. This will give you room to space the door frame off of the sub floor. 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.

The rough opening size is the construction size with the side lumber studs and header. Framing rough opening sizes are really quite simple. Double inswing wide mullion unit and rough opening sizing lf ff ff rf fl fr lf rf fl fr viewed from the exterior hand designations f l r fixed panel left hand right hand inswing outswing. Double outswing wide mullion double wide mullion 6 6 6 8 7 0 8 0 rough opening brickmould dim.

Getting the rough opening size right the first time will save you from frustration when installing your doors. 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. You should add 2 1 2 to the height of the actual door. The rough opening for a 36 inch pre hung door is is 38 5 inches by 82 inches.

The rough opening should be one inch wider than the frame and 3 4 of an inch higher than the door. Of frame is 40 x 86 as the frame face is 2 around all 3 sides. For the 36 x 80 exterior doors this rough opening will need to be 38 inches by 82 1 8 inches. For example let s say we want to frame a 6 8 x 3 0 front entry door.

Use shims and or caulk to seal gaps between wall and frame. Standard door rough openings.