This may seem like a kind of obvious question but I'm wondering - the standard door frame width, without jambs, is 32 inches right? well if I have some new construction I'm doing with studs 16'' on center, it seems to me if I just knock out one stud I'll have the 32 I need.Of course that'll be on center, not inner edge to inner edge, of the studs. Should I just move one of the studs over slightly to get the 32, or should I move bothe of them out a good 1 and 7/8 inches (to make room for cripples that will then make it 32.) In other words I guess what I'm asking is does every door have to have cripple studs? or could I just use the existing studs with a header since its so close to the width it needs to be.