I was a little concerned that it would not hold up to being placed on a low pile carpet but it worked very well. My chair has four casters and I weigh approximately 175 pounds and because the vinyl is thick enough it does not appear to pose any problems punching through and making any holes.
I haven’t had this a week yet and the wheels from my chair has already sunken into the mat over the carpet I will keep watching to make sure the plastic doesn’t crack all the way thru creating a whole