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)
Number of Stair Risers
- enter the total rise (in feet, inch and fraction of an inch, measured from floor to top of second floor)
- enter the maximum allowed riser height (inch and fraction of an inch)
- enter the minimum allowed riser height (inch and fraction of an inch)
- total rise in decimal format
- min amount of risers
- 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.