Steps Involved in Building a HouseSpike's Calculators

Number of Stair Risers Based on Building Code Calculator

Calculate the amount of risers based on your building code. Since the min and max allowed riser height is based on local building code you will have to look that up what this is for your area.

Here the maximum allowed riser height for private stairs (stairs in a single dwelling) = 7 7/8" (200mm) and the minimum allowed riser height = 5" (125mm)



Spike's Calculators
Total Rise ft inch n
d
Minimum Rise inch n
d
Maximum Rise inch n
d

Results:

Total Rise in Decimal ft
Minimum Number of Risers #
Maximum Number of Risers #

The Calculator

  1. enter the total rise (in feet, inch and fraction of an inch, measured from floor to top of second floor)
  2. enter the maximum allowed riser height (inch and fraction of an inch)
  3. enter the minimum allowed riser height (inch and fraction of an inch)

The Results

  1. total rise in decimal format
  2. min amount of risers
  3. max amount of risers
Note: When rebuilding stairs in an existing home the total rise should be measured to below the finishing material of the upper floor to allow for finishing the stair treads.



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