(Sorry for the mega-posts. I guess that's what happens when the WEB page gets 'hung'. SOrry 'bout that ...)
Anyway, SeamCo has some info for you. If you check out their Products WEB Page, maybe that's what you want? If not, contact them (off of their main WEB page) for a dealer near you. At worst, ask them what you should be asking for in your hunt for the 'dream' deck. Maybe they can refer you to a WEB page somewhere else. Ask about 'selecting a good river rock contractor', material quality, warranty, do's-and-don'ts, etc., etc.. I'm sure they'll be flattered.