A: There are 2 ways to measure for your door. The third is for prehung door units
Exact Door Size:
If your door opening is square and you are certain of the exact size of the door you need to accommodate your opening, you can simply supply us with the height and width measurements of the door size you want below. Keep in mind that your doors will be made exactly to this size with no subtractions from the height or width.
Finished Opening size:
If you have an older home in which the threshold or door o