It is not. On my hull, a 1996 #350, I saw wood core when I removed the deck fill. Mine was solid, so I did not mess with it. -- Doug Treff doug at treff.us On Tue, Aug 3, 2021, at 6:59 PM, Troy Dunn wrote: > Doug > > Do you happen to recall if it's solid FRP at the deck fill location? > > Troy >