I'm about to hang some pegboard up in my workshop to hang all my tools. I bought 2 sheets at Home Depot and was about to hang them. I was telling a neighbor about this and he asked "Did you buy the tempered pegboard?"

I didn't know there were two different kinds. The Home Depot only sold one type. Is there a way to tell the difference? Do they even sell non-tempered anymore?

Thanks,
Greg