Handrail Height Calculator

STAIRS v1.0

Handrail height per US residential code (IRC): 34 in - 38 in above the nosing, measured vertically.

Civil & Structural Engineering Tools

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Recommended Height Range
38 in
Continuous Rail Length Needed:14.21 ft

Handrail height per US residential code (IRC): 34 in - 38 in above the nosing, measured vertically.

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Trin-for-trin-guide

1

Enter Stair Run and Rise

Input the horizontal run and total vertical rise of the stairway in feet/inches.

2

View Code Height Range

The IRC-compliant handrail height range of 34-38 in above the nosing is shown automatically.

3

Get Continuous Rail Length

See the sloped handrail length needed to span the stair run, via the Pythagorean theorem.

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Ofte stillede spørgsmål (10)

Almindelige spørgsmål og svar om dette værktøj.

Per the IRC, residential stair handrails must be installed 34 to 38 inches above the tread nosing, measured vertically.
Rail length follows the stair slope — approximated as the hypotenuse of the horizontal run and vertical rise, similar to stringer length.
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