I apologize. I am using Pro 2015. I am trying to run the stairs along the sam wall as the stairs up to the kitchen. I was looking at starting the just a short distance from the man door in the garage to the back pation continuing down toward the other set of steps. It is a raised ranch (4') so the steps only need to go down 5' to the basement floor. I plan on 9' ceiling in the basement. I need the large garage due to restrictions in the subdivision on out buildings.