Are the PC Board Ties copper plated on both sides of the tie? May 10, 2019 19:22 Yes. We use double sided copper material for PC board ties. Our pre-gapped crossties are only gapped on one side. Related articles Can I get pre-gapped ties? Your PC Board Ties don't match the thickness of wood ties. Won't that be a problem? Won't the copper plating cause a dead short? Why are the crossties available at the same thickness as wood ties, but the turnout ties are not? What is a BullFrog Switch Machine?