Handrail A handrail is a framework of (usually) two horizontal rails supported by vertical posts, manufactured from fittings and pipe. Handrails provide fall protection, direct people flow (i.e. queue rail), guard hazards, and provide support. Handrails are used for safety, protection, to guide people flow, and offer support for pedestrians. Handrails are used by architects, engineers, contractors, safety managers, plant managers, maintenance managers, army corps, water treatment plants, manufacturing plants, amusement parks, bleacher manufacturers, paper mills, power plants, and offshore oil platforms. .