My old one about 13 years old was getting a lot of cracks from chair wheel pressure. This one seems sturdier. It was not difficult to place because my cabinet is on wheels so I moved it out of the way and then the wheels carried it easily over the mat. It is not showing any "dents". I use it daily at my sewing machine with desk chair on wheels for several hours at a time. I am very pleased. If I can get another 13 years that will be wonderful.