Hi all first time posting. About the 1000th time on this site tho. Planning to put a gable dormer in and I am trying to size a header that will stretch between tripled up 2x6 existing roof rafters. The span will be 115 1/2 inch from rafter to rafter 10:12 roof pitch. The header will be supporting the cripple rafter above header to existing ridge board and ceiling joist where they intersect with the 4 rafters. I’m getting different code guys telling me wildly varying numbers and am struggling to find something on paper that applies to my situation. Any help would be appreciated