// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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build.staircase-calculator Calculator
Calculates riser count, riser height, and total stair run from floor-to-floor height, then verifies the result meets IBC and IRC code limits. The most common construction error is rounding riser height and ending up with a non-integer step count that violates code.
Inputs
Total Rise In
Reference formula or conversion factor shown for context.
Run Target In
Reference formula or conversion factor shown for context.
Stair Width In
Horizontal extent perpendicular to the length.
Nosing In
Reference formula or conversion factor shown for context.
Results
number of risers
Sample size or count used in the calculation.
riser height (in)
The computed height.
tread run (in)
Sample size or count used in the calculation.
stringer length (ft)
The computed linear length.
7-11 rule check
A pass/fail verification against the applicable code, standard, or threshold.