marine plywood?

http://www.harborsales.net/productsandservices.cfm

Yak3, Make sure you use marine ply since it is manufactured with very high standards. The two most important are its lack of voids in the inner laminations and the adhesive bonding.

What are you doing with it? Pete

These people have been very good to deal with.
Pontoon stuff . com
1-877-295-9522
Elkhart , In.

thanks guys, i'm redoing a floor in my 79 CC. I'll post pics when i get a chance. I'll try them waterdog. I want the stringers to be one piece of wood, it's just hard getting a piece that long.

- Marine Plywood -
The invasion was lasting longer than expected, and the Marines needed some plywood to weatherproof their headquarters. A sergeant and three good men were sent out with a 6x6 truck to steal the plywood from the nearby Army base. All was going well, they had found some plywood and loaded it on their truck, when two MPs drove up in a jeep, demanding to know what was going on.
Marine Plywood
This was clearly one of those critical moments when the success of the mission was at stake. It was up to the sergeant to apply all his long experience of military matters. "Oh," he said, thinking quickly, "we were looking for somewhere to dump this scrap plywood."

"Well, you're not dumping it here," the MP replied, "take your truck and your plywood and get off this base."

All exterior plywood has the same glue. Building codes made that the change in hurricane country. Marine plywood is for building wooden boats, and you can get it in 12' lengths too. Treated plywood is good for flooring your boat, marine plywood would be wasted money. Treated lumber now is salt treated, used to be treated with arsenic, that's why you shouldn't burn it and stand around and breath the smoke.

damn that was expensive...oh well...hopefully only have to do this once...i've ended up taking the old fibergla$$ sides to the stringers down pretty far, there's about a 1/4 left of them. I didn't quite go as far as 79skinautique did, but am darn close to it. I'll try to post pics soon.

For the wood portions of my floor (87 SN), I am using 1/2" plywood. Not marine, army, or outdoor. Just plywood. I am laminating what will become the bottom with epoxy resin and 9oz gla$$. I am laminating the top with epoxy resin and two coats of gla$$. I am laminating the edges with epoxy and one coat of gla$$. When finished, it will be as strong as 3/4" plywood (much lighter) and truly water proof. Untreated wood absorbs the epoxy much better than does treated. It is more expensive because of all the epoxy and gla$$, but lightweight and water proof are worth the extra cost to me.

That is a good idea. I am also "sculpting" channels in the area between the primary and secondary stringers holds the exhaust, as well as the small hole at the engine compartment so water will run out and not pool.

No shims here. I will simply add a little extra height to the outbound stringers. Then attach the floor a bit higher on the hull. Shooting for 1/4" difference.