This chair mat is thin...very thin. I have it sitting on a thin carpet. Being so thin (and very soft) the chair wheels make dents in the mat. Considering what it is it wasn't cheap. For a couple dollars more I could have purchased a thicker sturdier mat. I would definitely not buy it again. In fairness if placed on a hard floor it would probably be acceptable.
Good mat as far as an El Cheapo goes. However if the carpeting you seek to protect is anything more than standard office "hard and flat" and has even just a little "depth" to it this mat will crater around the chair wheels.
Staples Carpet Chair Mat 36" x 48'' Crystal Clear (STP-17436)
on July 16, 2020
Posted by: E.H.
Verified Purchase:Yes
I bought a Staples carpet chair mat five years ago it had some cracks in it and became no longer usable so I am much satisfied now with my new mat and recent new chair I send a lot of time on my computer work station at home