I hadn't thought of the table having a wood core. I bought a couple (for sample tables at my work) and they were all metal with channel on the bottom side of the table for support. They seem pretty rigid. I figured I could cut the legs down to get them to the right size (not sure if I want casters or not). Which ever way I go I want to do a detailed instructable. In the end I want an automatic 1 tier system, should be fun putting it together.