Handrail Length

Sloped length from run and rise plus horizontal landing rail.

Total run (in)

Total rise (in)

Landing rail (in)

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Sloped

170.6 in

≈ 3 adult heights

Total206.6 in

How to Use This Calculator

Measure the total horizontal run of the stair flight in inches.
Measure the total vertical rise in inches (floor to floor height for the flight).
Enter the horizontal landing rail length in inches if a top or bottom landing extension is required.
Read the sloped handrail length in inches and the total with landing extension to determine your rail material length.

How the result changes with Total run (in)

Total run (in): Total horizontal distance of the stair flight in inches, measured from first to last riser.
Total rise (in): Total vertical height of the stair flight in inches, from bottom floor to top floor.
Landing rail (in): Additional horizontal rail extension at the top or bottom landing. Code often requires 12 inches minimum.

Identify Input Parameters
Total run (in) = 132, Total rise (in) = 108, Landing rail (in) = 36 = 3 input(s) provided
Calculate Sloped
Sloped
170.6 = 170.6

Engine last updated July 26, 2026. Checked against 2 independently-derived tests — how we verify calculators.

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