I'm not so wild about having my products on the fast food plastic trays, get the aluminum ones from a restaurant supply, after not very long they will develop a lower sheen, last the rest of your life, can be put ON the grill can be put in the freezer with a layer of waxed paper and used to freeze diced peppers or prepped things for the grill lift the paper off roll it and the product will shoot straight into a plastic bag. I will do that when making pork wings to take to the cottage.
I am constantly on the lookout for old style heavy steel "Sizzle platters" they are fabulous, I have two and wish I had a dozen!
The Vollrath ones are excellent, Chris has the right link there! I use half sheet size when I roast tomatoes and garlic for soup.