Thank you everyone for your help... I have successfully figured out the layout with your help, and we now have a beautiful set of stairs! We live in a rural area where we have the luxury of drawing up our own plans as long as they are up to code (I can see you all shuddering now, HaHa). The only thing we didn't plan on was not being able to get precut stringers. They didn't recommend using the treated inside the house, for what reason I didn't ask. But it all worked out for the better with all of your input. Thanks again!