There are whole groups that do this... for the OP, have you tried searching
the net? I know I've seen sites on this. Some places have annual
competitions. I would think a perogie (sp?) style with double (or triple)
layer bottom, double layer sides, and lots of bulkheads. If you could find
boxes used for flowers (and sometimes seafood), they are sometimes wax
coated. I would think that would increase the life in the water.

Ed

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When replying via email, replace spam with speak in the address.
"Richard Lamb" wrote in message
k.net...
wrote:

I have to build a cardboard boat using only cardboard and duct tape.
What kind of shape/design should I use to make it go faster and go
through the water faster? Any building tips would be helpful too. The
paddles must be amde out of cardbaot and duct tape also.


Well, is IS and on-topic request, I guess.

Any takers?