I purchased for an 8' round throw rug. It's the perfect size and adds a nice amount of extra cushioning to my rug. It does not slide at all on my wood floor, even when vacuuming the rug on top of it. I purchased this brand carpet area pad for another larger throw rug a few months ago. Upon buying a newer rug I knew right away that this was the pad to purchase! I highly recommend this for an 8' round area rug.