We have 3/4 carpet and chair rolls fine. Minor wheel indentations but chair sinks much less than thinner mat. Only issue is that after a week of placing heavy weights around the edges they still curl up about half an inch--just enough to stub a toe or catch a wheel if it rolls off the edge.
This mat is very thin and would only work on hard surfaces to prevent scraches on floor. I tried to use it over carpet and the wheels on my office chair made indentions in the mat and went thru to carpet.
I’m very pleased with the mat. It is certainly helping to save my laminate hardwood floor. I’d be ecstatic if it was 6 inches longer but I am very happy with it. The product descriptions were a huge help in deciding what would work best. Thank you Staples!