Abstract: A running board assembly for attachment to a vehicle is provided. The running board assembly includes a running board and a mounting bracket, for mounting the running board. The running board includes an elongated support portion including a support wall portion, which has an inward wall portion and an outward wall portion. An outward shoulder portion is disposed on the outward wall portion. An inward shoulder portion is disposed on the inward wall portion. Multiple cap portions are connected to the outward shoulder portion and the inward shoulder portion of the support portion. The cap portions are spaced from each other along the support portion to define step pad receiving openings. A step pad is connected to the outward shoulder portion and the inward shoulder portion of the support portion. The step pad is disposed in the step pad receiving opening.