How many jack studs are there?
Not too many people know that a jack stud is a stud that has been cut down to be placed above and/or below an opening. The main idea is that the jack stud provides support to the lintel trimmer and sill trimmer. There is not an exact number of jack studs. Keep in mind that there is no “rule” for how many jack studs to use in supporting a header. Do not forget that normally for a header, a jack stud is enough.