Yeah I saw a couple of them
First off, this is not Home Depot but the internet community that follows Home Depot. I have purchased sheets of, what I believe was tin, in the roofing department, used to patch roofing where two eaves meet. I was using it to make a small bi-ped robot feet. It seemed to cut and form like tin but I don't have the part of the sheet that had the sticker on it so I cannot be sure. It came in about 12x12 inch sheets and was relatively cheap.
I seem to remember they do have sheet aluminum
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