This shed is 14' deep ,16' between posts in front 6x12" beam,ruff 2x6 rafters 2' centers full 1x6" strapping 12" centers 12' high in front 8' at back approx. 3/12 pitch. Building is 10 years old now and had over 5' of heavy snow a few times no sags & no leaks. Metal roof with heavy felt paper...