All the credit goes to my cousin who did all the work. I was able to help for a couple hours. I decided to do a 4x6 size. This is how much got done today. We did a 2 1/2" gap that will be covered with hardware cloth at the top of the two walls we got done today for ventilation. Do you guys think I need more? We're considering doing a small and narrow "window near the top of one of the walls we haven't gotten up yet. Dimensions are 51 1/2" wide and 75 1/2" long. Highest point of the slope is 4 feet and the shortest point is 3 1/2 feet.