I probably have the worlds biggest overkill filecabinet - Dad got a 4 drawer 2 hour rated unit years ago, free. The only problem was that when we sold his house, I had to get it out of the basement, and once I did THAT, it wasn't much more to have it put in mine. Darned thing weighs just under 1/2 ton empty. Dont really have to worry with that in the house