answering my own question posted on here 2 days ago.After much research to find exactly what I was looking for, I found the perfect rectangular stone,tile,concrete glass imbedded product at www.bakingstone.com. A little bit pricy,but a perfect stone,(in my opinion). Good up to 1000 degrees, 3/4" thick to evenly heat,and perfect size to fill the oven rack perfectly. CHECK EM OUT!!