【How-to】How thin can a torsion box be

MDF that’s 3/4″ thick would work, too, but there’s no significant advantage to it {see Torsion Boxes-The Real Story, page 40). Material that’s 1/2″ thick strikes just the right balance, I think-it’s thick enough so you can safely nail into its edges, but thin enough to make a large table that’s light enough to move.