Chuck, I have used both. The stuff from Home Depot is not as dense as Starboard but it will be fine. I cut a triangular piece that is glued onto the top the the deck just under the end of the anchor when it is resting on the forward deck and it has done fine in all kinds of water and weather. It comes in standard size board lengths however.
Give me a measurement and an address and I will send you a small piece. Sounds like you only need something 6 Inches by 4 inches.
