My carpet is only 1/4” with an 8lb pad. I only weight 170 and the mat has depressions each day where the chair wheels were. Not very good performance for a mat that supposed to be for a medium pile up to 3/4”. Not sure it’s going to last very long.
This is the one to get if you have a high-pile thick carpet. Standing up great - you could rollerblade on it. Unfortunately the first mat delivered had a 3-inch tear in it at the corner. Not sure whether this is from delivery or from the original product as I was not present when it was delivered. It is quite heavy but holding up well to everyday use.
I liked the mat but it seemed to be for a lower pile carpet than a medium pile carpet. This makes it bow a bit from the weight of a chair and buckle. I would say this is for a low pile carpet.