What kind of Core material should i use?

Hello. The plywood core in my Tanzer 16 rotted out. I've removed it all and now need to recore the deck. Can anyone suggest a good coring material for a small job?
Thanks

 

Have you still a laminate on the deck (underside)? If that's the case it's propably quite "soft" and leaves only a couple of possibilities. Either vacuum bagging a new core, or hand laying it in smaller pieces.
Quote from the rules:
"d.Plywood hull and deck core material may be replaced with other materials, such as balsa or Airex foam, at the discretion of the owner."
Corecell is good too..
http://www.tanzer16.org/Specifications.aspx

 

We removed the top layer and all of the playwood, then ground down to bare fiberglass. I was figuring we could lay sheets of coring. The Corecell you mentioned looks like it would work OK.

 

Just remember to put some hardwood or smth in the fastening places... makes things a lot easier later..

 

I'm not clear what you mean about the hardwood pieces. Would i not just glue down the core, then glass over it?

 

Use marine ply, encapsulate it with epoxy resin and call it a day. It will last longer than the rest of the boat.
And you must not redesign anything, just go for the old sizes.

Regards
Richard

 

If you have any intend to fasten anything else but stickers put those places something solid instead of foam..

ps. Richard is right.. it's not so big piece of ply..

 

Plywood will cost 5 to 10 times less then the other coring choices you have.

 

Thanks for all the great input everyone. I think plywood wins.

 

Encapsulate it .....

then, yes.