The handrail is a practical and decorative protrusion that is usually placed on a stair, a slab, a balcony, etc., and is a member for hand-holding along the (top surface) of the railing or the slab, and is used for walking.
Most of the materials are wooden, but also metal, plastic, terrazzo, marble and so on. Requires safety, firmness, aesthetics, smooth surface and no sharp edges and corners.
The form can be designed freely, but the width is based on the principle of comfortable hand grip, generally 40~60mm, the widest should not exceed 95mm, and it needs to be continuously set along the length of the ladder and the landing. https://www.ydp-hospitalfurnitur...-anti-slip-handrail.html