Where I live I checked on a permit to build an 8X16 or 128 SQ. FT. post frame chicken coop and the permit was going to cost $1000.00. Yes that is correct one thousand dollars because the proposed building was twenty eight square feet over the 100 SQ. FT. threshold. As a result I plan to go...
What could be throwing you off is that your picture is not quite right. If you indeed want a 45 Deg. Pitch you have chosen the easiest one to do. To figure out your rafters divide the width of the structure by two, to get the run, in your picture that would equal two feet. If you indeed...