I want to install cherry doors throughout the downstairs of my house. After seeing retail prices, though, I am convinced I can make them myself at a fraction of the cost. Most all of the ones I've seen at retail have all been built from a core material to which cherry veneer is applied, and with cherry along each edge that is wide enough to permit shaping. I know that using a veneered core is meant to save material costs as well as to minimize the chance of warping or bowing if solid wood were used.
That said, what material(s) would any of you recommend I use for the core of a built-up door like this?