Here is a 1/4" scale plan and cross section for an L-shaped stair that meets the new International Residential Code requirements.
The full scale PDF can be downloaded at our sister site Planhelp.com. It is in the Details section of the Download library. (There is a link in the PlanHelp forum and a thumbnail link below.) Be aware that PlanHelp is a paid membership site.
(https://i56.photobucket.com/albums/g166/jraabe/stair-l.jpg)
http://www.planhelp.com/public/programs/downloadsearch.cfm?searchtype=simple&searchmode=cat&keywords=recent&sortby=name&cat=Plan%20Details