Emailists, all bamboo cutting boards I've seen are solid laminate of bamboo as they are either from China or state side folks promoting renewable resources. Bamboo grows in most any soil, grows fast, and is harder (and cheaper) than maple. I have bamboo in my backyard in Michigan. It survives the winters (semi-evergreen) and sends out new shoots each spring that grow fifteen to eighteen feet in one short summer. Every year I harvest some. It's great stuff.
Happy Listening!
Happy Listening!