Handrail Calculator
Uses hypotenuse of rise and run for one sloped handrail line.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
How to use this calculator
Match stair flight geometry.
What the math is doing
Rail length ≈ sqrt(rise² + run²).
Frequently asked questions
Returns?
Add return lengths manually.
Wall rail?
Use plan length instead.
Extensions?
Code governs past nosing.
Fittings?
Count elbows separately.