The minimum length of a residential handrail is measured from the nosing of the bottom step to the nosing of the landing.
For a superior installation that conforms to the ADA, or for any commercial application, measure from a point on the floor one tread depth in front of the bottom step. At the upper landing, extend the handrail horizontally for at least one foot.
Please consult the How-to videos or download the Promenaid instructions for more information.