Abstract: An improved vehicle running board construction and method of making same including a hollow metal support pipe with an elongated mid-section step portion adapted in vehicle-mounted orientation to extend generally parallel to and adjacent a sill of a vehicle door that provides access to a passenger or freight compartment of the vehicle. An elongate mounting opening is formed in an upwardly facing exterior surface area of the pipe mid-section. A support plate has a plurality of transverse trusses arranged in spaced apart relation in a longitudinally extending row and straddling the opening side edges and resting thereon for support. A plurality of spacer webs are individually interposed between and joined to longitudinally adjacent pairs of the trusses and support at each of their longitudinally opposite ends, a resilient spring finger catch oriented to underlie an associated one of the pipe opening side edges.