http://www.corinthianmarine.com/carpet/index.php I was able to play around with some drop in carpets from a local Nautique dealer. They didnt end up fitting my boat. I contacted them and they told me I could make a template (photo) and send it to them for a quote and they could make me custom carpets. The carpets that I played with had a rubber bottom with little spikes just like you see in car floor mat's. I made a template and sent it to them. I found out that they no longer make or have the carpet with the spikes! The drop in carpet that they use for the custom mat's has a rubber bottom that made to be used on bare fiberglass floors. Im guessing with out the grippers the carpet is gonna move all over the place and not work out. They quoted me like $700 for the carpets. Any advice or company's that make the carpet's with the rubber spikes made to be used with boats that have carpet.