USA Pan Nonstick Quarter Sheet Pan

I have bee dealing with a thin half sheet pan that warps every time I use it. I bought these (two quarter sheet) as a replacement because my usual oven items are small. Night and day difference. These are surprisingly heavy. The texture of the pans are very different as I have never used aluminized steel for baking. The pans all arrived in perfect condition as well. I believe it would take a pretty strong hit to even dent one much less warp in the oven. I was so impressed that I also purchased the half sheet, 12 muffin and an 8 x 8 cake pans as well. They are all well worth the money!