For those of you that have a single, straight flight of stairs in your two story home, how much space does it take up on your floorplan (assuming an 8' ceiling and thus 9' in total to get to the upper floor).
I just wanted to double check becuase when I google it, i get various answers, but a few work out to about 12.5 feet (eg see link). I think VirgilCarter suggested 16 feet.
I know local codes can vary, but it'd be helpful just to have a few empirical points, as I play around on my own with floorplans before meeting with architects (I've narrowed it down to 3 to meet with)
Here is a link that might be useful: stairs and floorspave