# Stair Rise And Run

### Break those rules at your own risk.

Stair rise and run. The horizontal distance of one stair. Nosing the amount the stair tread projects passed the vertical riser below. You can view the code in its entirety here. An intermediate run is 11.

Calculating basic stair run and rise measurements are fairly simple however sometimes you might want a bit of verification. The rise plus the run r r should be within an inch of 18. The run should be between 8 5 and 14. The rise should be between 5 7 5 with the ideal rise for a residence being 7.

The stair calculator is used for calculating stair rise and run stair angle stringer length step height tread depth and the number of steps required for a given run of stairs. At the same time staircase code measurements do allow for some flexibility since most measurements are accompanied by minimums or maximums. Here are three reference numbers for the codes pertaining to rise run and nosing in a straight run of stairs. A prime example is the standard stair width.

Our stair calculator tool takes the overall run and rise of your staircase along with the desired steps and tells you the calculated run and rise of each step. For convenience and flexibility this stair stringer calculator comes in two forms the automatic and manual click on the icons to determine the best calculator to use for your stairs. Required headroom as per building code or the. All of these measurements include the finished flooring so don t forget to take those thicknesses into account when planning your stair dimensions.

The stair tread is the run plus the nosing. And relevant to your question is the. Explore a number of building and housing related calculators as well as hundreds of other calculators involving topics such as finance math fitness health and more. It is how far in the stair goes which gives the amount of room for a persons foot.

Rise r 12 run r 4 r r 16 too low 2r r 28 too high won t be comfortable. You can find the calculator below. Unit run is the horizontal measurement of from the front to the back of a single stair which is known as the tread standard code requires that each stair tread fall between 9 inches and 11 inches 22 9 cm and 27 9 cm to allow people to safely ascend and. This calculator calculates riser height from total height and number of risers and provides results for slope rise and run ratio s total run of the stairs stringer length and the minimum required floor opening.

Staircase code states that stairs must be 3 feet wide or wider. Unit rise is the vertical measurement of the height between two individual stairs. As long as the 3 foot width standard is met you can expand the stairs width as far as you wish.

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