Haven't had it long enough to find out if it's going to crack or not Mat is Just a little to soft for plush high pile carpet as a Chair with rollers sinks in I would have bought a harder mat but they don't come with a lip.
Very pleased with this product. And I thank the young man who helped me to select it when I visited your Broadway/8th St. store. He scanned the screen in the store so that I was able to see various mats leading me to purchase the one that I selected. All went very well. Thank you.