Front door rough opening.
How to measure french door rough opening.
To correctly determine the size of a rough opening for double or french doors measure the size of each door.
Add 1 3 4 door slab depth.
For outswing doors measure from the door slab to the interior trim.
In order to determine what size you will need you ll need to measure your existing doorway.
How to measure a rough opening for replacing french doors 1.
Measure the inside distance between one stud to the inside face of the other stud and write down the measurement.
The framing studs must be exposed to.
Measure from the door face to the edge of the jamb at the thickest part of the jamb.
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.
Measure full height of opening from head exterior trim to threshold where storm doors will attach.
So if each door measures 30 inches wide the width of the rough opening should be 62 inches.
Remove any trim remaining in the opening from the previous door with a pry bar.
A b measurement w.
The result is your door opening depth.
Double doors extra in width for t astragal.
Measure the distance from the subfloor plywood or concrete to the inside face of the 2 4 or 2 6.
Compare your dimensions with the standard french storm door opening size guide.
Measure the width of the opening stud to stud in 3 places the top middle and bottom and record the smallest measurement.
Measure full width of opening from jamb exterior trim where storm doors will attach to the trim.
To get the total width multiply the width of each door by 2 and add 2 inches.
If your opening does not match a standard you need custom french doors.
The rough opening is typically about 1 1 2 wider than the unit size and about a 1 taller.
For reference standard interior door widths range from 24 36 finished opening.
This can be done with an existing door finished opening or a rough opening where you can see the 2x4 s.