I have been doing some research on core material, as I am redoing the decks on my boat and am afraid that the core it wet. I have to tear off the teak first to see, but I was wondering what core material was the best value, I was leaning towards foam, Nida-core or divinicell. I don't know a lot about them and was wondering if anyone had any recommendations. And a cheap place to buy it?
If you really want the best price you need an industrial supplier, some of whom are perfectly happy to deal with smaller orders from an individual. I get large orders of core material for much, much less from my industrial supplier, but as you are on the east coast I don't know if they distribute there. Worth a call, they are MUCH cheaper.
I vote Divinicell as well. I would check with builders or repairers in your area. Stuff is not cheap but it is really a small part of a project like that. A larger builder might sell you scraps or surplus at a discount.