I guess it depends on what Lowe's and Home Depot. I do not trust most of the people that work their. I have a background in electricial, and was given really bad advice on how to plug in a 3 plug stove into a 4 plug outlet. Trust me, I did not take his advice. When I asked both of our stores, they told me to look at their books. Then I only saw books on using a stainless steal BBQ and put bricks/stones around it.
I liked the website Chris F showed me, I need to adjust form their metric sizes to good ole USA Standard size, plus I am looking for either stone or brick, not their Mexican Adobe look, but I am hoping to use some of their ideas.
I tried the website that cokehead gave, but it didn't work.
Thanks again! Dan