To be honest, I can''t remember what thickness I got. I would guesstimate that they are 1/4 inch. Total cost was about $300 plus some varnish and time. Harbor Sales will also ship. If you have the site, I''m sure their number is there. Call them and see what they have. It is a huge place, and they have a great selection.
I used to live in Charleston, and am thinking of moving there when I retire (not soon). Where do you live, and what is the sailing like?