On Tue, 20 Jul 2010 12:10:34 -0700 (PDT), Tim
wrote:

I was wondering abotu using salt-treated plywood on the Marquis deck.
I'm not a feared of paying for marine grade, but Jimmy the carpenter
told me that the newer salt treated woods are about as worthy as
marine grade at a fraction of the cost. So, what's the opinion?

I think a lot depends on how long you expect to keep the boat, and how
much value you put on your time and effort. There's no question that
the marine grade is more durable over the long term and it has fewer
voids.

I'm even wondering abotu using hybrid decking like you'd use on a
porch. synthetic mylar etc mixed with wood. The stuff is weather
resistant as all get out!

Check the weight. The artificial decking that we have on our dock is
quite heavy.