Marine Grade Plywood?
dman, I beleive we shall have to agree to disagree.
A few note applicable to my particular case:
I don''t intend to design the boat from scratch, only to personalize an existing "tried and true" design;
My experience working with materials goes far beyond concrete... the lamination of plywood into specific curves and shaped happens to be one such area;
Costs are greatly different if one doesn''t buy all their materials as finished products from the boating store.
Good Sir, your''s is the voice of negativity which turns one away with "I can''t". Nothing ever came of such.
Thank you for your advice. I choose to disagree in many ways.
Happy Sailing to you!