Interior Door Rough Opening Size

The height of common doors is 6 feet 8 inches.

Interior door rough opening size.

Typically a pre hung door is measured in 30 inch and 36 inch sizes with additional sizes available in non standard widths. Standard door rough openings. For example let s say we want to frame a 6 8 x 3 0 front entry door. Add 2 to 2 1 2 inch to the measurement of the door s width to determine the total width of the rough opening.

Measure the opening to your door frame. 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. Just add 2 to the width of the actual door size.

The additional room allows for a 3 4 inch top jamb a shim. Measure your door carefully and cut the opening to fit using a reciprocating saw. The size of the door opening will vary depending on the size of the door you plan to install. This will give you room to space the door frame off of the sub floor.

Framing rough opening sizes are really quite simple. Entry doors are usually 36 inches wide. Getting the rough opening size right the first time will save you from frustration when installing your doors. If you re going to frame a rough opening for a door then you ll need to know the unit size.

For reference standard interior door widths range from 24 36 finished opening. Be sure to allow for about a 1 inch larger opening than the standard door sizes. The standard height of the rough opening for a door is the door height plus 2 5 8 inches. A typical door opening is 2 inches 5 1 cm wider than the door size being installed to allow for the thickness of the jamb material and shims to plumb the jamb.

Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide. The 6 8 stands for 6 8 tall and the 3 0 stands for 3 0 wide. Masonite strives to provide our customers with as much information as possible so you can get the right door the first time. Refer to the.

Download all the technical information and data on specifications use and maintenance for all our doors now. Determine the size of the door opening. While a standard door height is 80 finished opening. While a door width of 36 inches is oversized for an interior door it s the standard size for front doors the standard height remains the same however.

For fire rated openings drywall must extend at least 1 2 into frame.