2013 California Standards for Accessible Design Pocket Guide

11B-505.10.2 Top extension at stairs.

At the top of a stair flight, handrails shall extend horizontally above the landing for 12 inches (305 mm) minimum beginning directly above the first riser nosing. Extensions shall return to a wall, guard, or the landing surface, or shall be continuous to the handrail of an adjacent stair flight.

FIGURE 11B-505.10.2

TOP HANDRAIL EXTENSION AT STAIRS