No, I've never seen the galvanized metal thing. Should work though. My wife, Joanna, says she remembers something like roofing tin, being used. I've always had some skepticism about all the hype over vaults anyway. Probably a Madison Avenue selling job, to make $$$ for someone. The old wooden caskets, of years ago, still seem adequate to me. Let nature reclaim the remains, after a few years. Jess