What type of Plywood?

[Bryan A.]

For some interior panels on my boat I used regular old Luan from the HD. The same stuff they use to level floors in 1/4" thickness. I laminate it to the thickness I need. The advantage is it is skinned with a low grade Mohaghany and actually looks pretty good when covered with Cetol. Bonus is it costs about $12 a sheet and is void free, just a thought. A little labor intensive but I think you end up with a quality piece of wood that is very stable. I used Epoxy to laminate but you wouldn't have too. Check it out.

[joseeli8797]

I dont know about other ply woods but marine grade plwood is A/B firr it is smooth on both sides you can get A/C firr (half the price) and it is still exterior grade same as marine but only smooth on one side. I hope that helps. Jose

[Water Rat]

One place to try in Mass. is Boulter Plywood (24 Broadway, Somerville, MA). I'm not sure how competitive their pricing is, but I have bought both solid teak and marine ply with teak veneer laminated on both sides from them, and was very happy with the quality of the stock. Good luck.