Where do I find large (wall size) sheet metal that works with magnet?
I looked online at Home Depot and Lowes and I don’t see anything like this, but I know I’ve seen these in-store. It sounds like you’re going to use it as some sort of poster board or something. I think you’d see this in the roofing department of stores. Now, these sheets aren’t polished and smooth, so I’m not sure they’ll meet your needs for attractiveness, but you can always cover them in something. As long as your magnet is powerful enough, it should fit your needs. Here’s some info on what I think you’re looking for, but like I said, I don’t see it online. But with this in hand if you go to the store it might help you find what you want: Manufactured sheet metal roofing is sold in large panels–normally 26-gauge coated steel that weighs about 1 pound per square foot. Other materials used include painted aluminum, solid copper, zinc alloys, and terne-coated stainless steel. Because of the large panel sizes, this roofing works best on large, unbroken expanses where minimum cutting is
