"dadiOH" wrote in message
news:myKmi.438$SM6.116@trnddc01...
GB wrote:
I'm going to take this advice on my /second/ boat thanks guys.
Having looked a bit closer, the CD grade structural plys are
a lot cheaper than the good marine stuff, so I'll learn my
lessons on a cheap bit of timber, and take it from there :-)

You do *NOT* want CD. A decent (AB or BB) exterior would be usable
but not CD. Even with the better face plies you'd need to look for
sheets without obvious interior voids. Considering the cost of epoxy,
I wouldn't skimp on the cost of the ply it is to cover. Not to
mention time.

--

dadiOH
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GB, I concur don't use CD grade it will fail at the voids when you bend
it, I built a one-sheet boat and that's what happened to the first one. The
cost between cheap materials and good ones is much less than you think,
especially in a small boat. The disappointment when the first one buggers
up is a factor if you involve your kids too. MRplywood is the way to go,
and they are everywhere. Good Luck.

Dain.