A step assembly for a vehicle comprising an elongated main body having a substantially straight portion and two end portions; a generally U-shaped step bar having a substantially straight portion parallel to the main body and two bent portions, the bent portions welded to the main body and a step surface having a plurality of apertures that is affixed to the step bar to provide traction to the user. The main body is preferably welded to at least one support bracket. The installation of the step assembly is a two step process that comprises engagably attaching at least one mounting bracket to a vehicle and then engagably attaching the support bracket, which is preferably welded to the main body, to the mounting bracket.