Building codes are relevant everywhere, just not so much enforced in some areas. If someone falls on your stairs because the top step is 1/4 inch taller and the bottom step is 1/4 shorter, even if there are 14 steps (which can not exceed 7 inch risers) You are out of code almost everywhere in the US, and liable for negligence lawsuits. The total difference between shortest and tallest riser cannot exceed .375 or 3/8" max) Just 1 example of the codes that you DO have to be dealing with locally. True probably not enforced in Hoxie, and to be honest probably about the same as in Colby, Hill city and Oakley. But There is still codes there, and I am so glad you are beginning to think about it. Kansas follows the International Building Code (IBC) 2012 guidelines for structural soundness as far as I am aware. Although some counties, or cities can supersede and ask for more. IBC 2012 should be found any place that sells books, or can be bought online I am sure. The cost for a hard copy book will be in the area of 250 dollars, a download could be as cheap as 75. But be aware, some cities/counties/states are stricter than the international code.