So this is where the new green house will sit. There will be a 6' X 20' platform with recycled lumber...and walls. coming off of that up the hill will be a roof made 3" Pvc pipes conecting to a small wall on the top of the hill...the other side of that will attach to the 6' X 20' wall. The side walls will be framed in with lumber and the whole structure will be covered with 6mil greenhouse plastic.