Door Rough Opening Measurements

The space between the floor and the bottom of the door may vary depending on the type of flooring.

Door rough opening measurements. 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. Timely prefinished interior steel frame. Typically a pre hung door is measured in 30 inch and 36 inch sizes with additional sizes available in non standard widths.

Now all you need to know is how to properly frame your door rough opening. Use shims and or caulk to seal gaps between wall and frame. Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide. The width of the rough opening is listed first then the height.

Measure the width width is a jamb to jamb measurement of the space where the door slab will go. Continue reading below our video of the day. Standard door rough openings. Add 3 4 to unit width.

This allows for 1 2 inch thick drywall on both sides and at the top 80 inches for the doors and hardware and a 1 to 1 1 2 inch space under the door. The rough height of the door openings are the height of the doors plus 2 1 2 3 4 for the jamb plus 1 1 4 for flooring plus 1 2 for leveling. You should add 2 1 2 to the height of the actual door. The door would be called a 2880 28 32 wide 80 96 tall.

Door measurements are often written on the door schedule in a four digit format for example 2068. In order to determine what size you will need you ll need to measure your existing doorway. Standard dimensions for rough door openings are based on the door itself not the surrounding jamb and sill so take care to ensure you measure the correct component of the door assembly. 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.

Framing rough opening sizes are really quite simple. The rough opening should be 49 by 82 for a 48 by 80 inch door. A opening width 1 1 4. For example let s say we want to frame a 6 8 x 3 0 front entry door.

Add 2 1 2 frames generally measure 1 1 4 thick each x2. This will give you room to space the door frame off of the sub floor. Of frame is 40 x 86 as the frame face is 2 around all 3 sides. The 6 8 stands for 6 8 tall and the 3 0 stands for 3 0 wide.

The rough opening would be 40 1 2 x 86 1 4. Measure the opening to your door frame. Just add 2 to the width of the actual door size. Measure the jamb hump to hump.

If you re going to frame a rough opening for a door then you ll need to know the unit size. While a standard door height is 80 finished opening. So using the information above as an example a door that is 32 wide and 96 tall requires a rough opening 34 wide x 98 1 2 tall. For a 3 0 x 7 0 door frame.