Stair stringer length
Stair stringer length: use total rise, total horizontal run. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
Length = √(total rise² + total run²)
Variables & units
- Total rise
- m · minimum 0, maximum 1000000000000
- Total horizontal run
- m · minimum 0, maximum 1000000000000
Worked example
Use the example inputs to explore this model; the solution shows each supplied quantity.
Assumptions
Geometric diagonal only, excluding end details. This does not verify a compliant stair design.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
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