I'm installing a rear duct range hood and need to open a ~4"x18" hole through the exterior wall. A 2x6 stud blocks the hole. I plan to cut the stud and place a header, jack studs, and sill around the hole.
Do the jack studs need to extend all the way to the bottom plate or can they just be screwed into the king stud? (there is some wiring that would need to pulled back for the jack stud to reach the bottom plate)