One inch?
Those look like about an inch, maybe a little more?
I'm guessing the more the merrier, I measured the ones I removed and they varied a lot, from about two inches to maybe as much as three inches in some instances.
I would think two inches or less might do the trick. Same for the braces, which are much thicker and offer more support than the pans themselves. My stuff was purchased maybe 4-5 years ago, had "Made in USA" stickers on 'em.
Thanks!
TomK