I've been designing and building furniture for twenty years. I use the commonly available American hardwoods. There is no partial board or plywood used as I believe it distracts from the aesthetics of the piece and the traditions of the craft.
I am particularly fond of the arts and crafts styles but enjoy emulating the works of Greene and Greene. For more of them see the web site for the Gamble House in Pasadena, California.
I can assist you by designing a particular piece you've always wanted but have not found in the retail markets.