freddy, you can get the expanded metal at HD or Lowes but it is not cheap and light weight. Go to a local metal fabricating shop and you can get a lot heavier metal and real cheap, if not free from their cut off pile.
my avatar swiped fatties from the plate....look how sorry he is.
NB Bandera with mods
Weber 22 .5" x 2, 26.75" x 1
UDS x 3
Created "The Great Spam Revelation of 2011."