Handrails should be used in all staircases with two or more risers and on ADA ramps with a rise greater than 6 inches.
ADA handrails are designed to keep people as safe as possible on stairs or ramps by being placed between 34 inches and 38 inches above the leading edge of a stair tread, ramp surface, or walking surface. The height of children’s handrails is between 9 and 28 inches, with a clear space of at least 9 inches between the children’s and adult rails.