Anyone that is a do-it-yourself-er may at some point come across a project that involves putting in stairs. With this, one would need to know how to calculate rise run of stairs. This is a fairly simple math task, but can get tricky based on whether the stairs have landings or are attached to non-level surfaces. This can also be altered by the base materials used, such as wood or metal. To easily
. calculate the rise and run for stairs, go here: http://www.decks.com/Calculators/Stairs.aspx