Running Board Swap

Hello everyone. I am new to this forum and glad to be a part of such a solid group. I have a question about my 2006 F150 4 door supercrew I recently bought used. The question I have is are the stock running boards reversable. What i mean is could I put the passenger side runner on the driver side? My wife ran over a huge rock at Costco and it fatally bent the running board on the driver's side. I purchased a new (different style) pair of after-market running boards and installed with no issues.. I am now left with one good running board from the passenger side of the truck. If I were to try to sell this thing could I say it is a universal (driver or passenger side) fit for the same model truck or do they only fit on one side? Thank you for your time