material to ensure there are no hi points in the stand

[StirCrazy]

ok so I am starting to put the boards backin for the "shelf" that the tank will sit on and I am using two pieces of plywood. my question is instead of putting carpet, or somethingunder the tank, can I put a 1/2" thick piece of that blue styrafoam (how ever it is spelt [img]images/smiles/icon_biggrin.gif[/img] ) in between the two pieces of plywood?

basicly I would have the metal frame, then plywoodsheet, then the BLUE STUFF, then another plywood sheet, then the tank

well what do you think?

Steve