This is an easy calculator you can use
to determine the rise:
(RISE: the height of one stair
in a staircase. This is the amount of vertical distance someone moves when
he or she steps from one stair onto the next. Per most Building Codes, the
rise should be between 5" and 7¾" with the ideal rise for a residence being
7")
and the run:
(RUN: the horizontal distance of one
stair in a staircase. It is how far "in" the stair goes which gives the
amount of room for someone's foot as he or she climbs the stairs. Per most
Building Codes, the run should be between 8¼" and 14". An intermediate run
is 11". See tread for comparison to run (the horizontal distance of one
stair in a staircase. It is the run plus the nosing . Per most Building
Codes, the tread should be between 9¼" and 14". An intermediate tread is
12".
of each step in your staircase and
the length of boards you need to buy for your stair stringers.
Numbers can be entered with a decimal or
fraction (i.e. 8.0625 or 8 1/16).
Measure the 'total rise' (from the
surface of the upper floor to the surface of the lower floor). Use either
inches or centimeters.
Enter this amount into Total Rise
and set calculator for either inches or centimeters.
Select a common rise-run combination from
Simple or enter your own in Custom.
Press the Calculate
button and read the results in Exact Measurements
To print this page, go to the File menu at the top of the window.
Then click on Print.
