Handrails or Handgrips Handrails with a circular cross-section shall have an outside diameter of at least 1-1/4 inches to a maximum of 2-1/4 inches.   The perimeter shall be 4 inches to 6-1/4 inches.  The handgrip portion of handrails shall have a minimum radius of 1/8 inch to ease the corners.  The surface shall be smooth […]