@cjack posted:After all why skimp on the foundation?
I thought the same thing. The difference in the price of the wood using the "good one side" plywood from HD and using the 11-ply birch was less than $100. The difference in rigidity of the HD plywood and the multi-ply is considerable. I'm putting a few thousand into new track and Ross switches, it didn't seem like the place I should try to save a few bucks.