Foam in stringers

[redtail14]

what type of foam do I need to refill my stingers? some options?

[redtail14]

And how much? gal? 2?

[RickK]

I used 4lb closed cell in mine. The stringers can be construed as structural since they are hollow and trapzoidal, so why not go with the 4 lb. Most people use 2lb for floatation.
Here is a link to a supplier and they explain things well. http://www.uscomposites.com/foam.html

[redtail14]

Awesome! Thanks! Do you know of any threads that discuss painting the boat bottom? I don't think I need anti-fouling paint... My boat will be a barn/trailer queen. 

[McAllgeyver]

I used 2- lb foam. And painted bottom

Check out https://classicaquasport.com/smf/index.php?topic=14350.0