A step aid device has a series of support structures positioned on a flight of stairs to assist a user with a lower leg injury to climb the stairs. A first support structure may be disposed on a first plane. The first support structure has a first side, a second side oppositely disposed from the first side, and a perimeter disposed between the first side and the second side. A second support structure may be disposed on a second plane. The second support structure has a first side, a second side oppositely disposed from the first side, and a perimeter disposed between the first side and the second side. The second support structure the second plane may be offset from the first plane.