Lawrence James wrote:
He might be asking about the use of wood in fiberglass boats, rather than
wood boats. Commonly the use of plywood for floors, transoms, and interior
pieces. As to the why, it's because plywood is cheap.


And wood in general is strong. Properly installed wood substructure
(encapsolated stringers etc) will last a good long time. The problem of
course is if water does get under the encapsolation.

My stringers are pressure treated fur that is encapsolated. Time will
tell how it will last in the long run. Much will depend on how I care
for the boat. But I do not fear it will fail any time soon. One might
guess that a poorly made fibreglass stringer system may develope cracks
over time. I am sure one properly built will last a lifetime. As will a
well built substructure made of wood.

Capt Jack R..