I live in a house where female relative cut garage room off and made room addition - great first effort!. The interior stairs seem very steep (as well as narrow). I am now putting on 2nd story balcony (old one collapsed after 15 years)and wish outside stairway built. Want it better design? not as steep, easier to climb. Menards have pre cut step sides...possible to get pre cut in gentle slope?? really need better quality, easier to climb. Thoughts?