Building stairs for your deck is often considered “the most difficult part of” the construction project. Having the right calculations before getting started can make the task a lot easier. To simplify the process, we’ve created this deck stair calculator to help you determine the correct mea...
Using the pitch of the stairs, I use the COS function on my calculator to find the mathematical length of the stair along the angle—and thus the length of the 2x12 stock needed for the stringers. This is a relatively simple rake length calculation, which can be done using trigonometry. ...