Rough Country Oval Steps for 19-21 Chevy/GMC 1500,20-21 HD,Crew Cab - 21002

A running board or footboard is a narrow step fitted under the side doors of a tram (cable car, trolley, or streetcar in North America), car, or truck. It aids entry, especially into high vehicles, and is typical of vintage trams and cars, which had much higher ground clearances than today's vehicles.