Gunwales and cabinet trim are pretty far apart. Usually, one wants a hard
tough wood like oak for gunwales and a nicely finished wood likecherry,
walnut, teak or mahogany for cabinet trim. I believe that black walnut is
not particularly rot resistant.
Dave
"SouthForkSam" wrote in message
oups.com...
How well will black walnut work as cabinet tops, trim, and gunwales in
a boat? It will be covered in epoxy and then coated with several coats
of high gloss UV blocking varnish, but I am interested in knowing if it
is resistant to rot and such.

Thanks!