Murray Peterson wrote:

Joe Barta wrote in
news:Xns9745D6430F2CAjbartaapknet@ 207.115.17.102:

You could make the shelves a torsion box. Think hollow core door.
Lightweight and very strong. 1/4" ply top and bottom, hardwood
edging and pine innards. No steel needed.

That's pretty much what I had in mind, but with some 1/2 inch
steel angle- iron screwed to the inside of the front and back
edges for increased stiffness. Sounds like my design may be
overkill for the application.


Over 6 feet, 1/2" steel angle ain't gonna do squat. You'd get far more
bang for your buck increasing the thickness of the torsion box.