The office chair wheels make an indentation in the mat that makes it difficult to roll out of and my weight is 145 pounds :-) We ended up putting the old mat under the new and this works well.
Staples® 36" x 48" Medium Pile Carpet Chair Mat Lip
on May 21, 2018
Posted by: G.R.
It's better than most that are available today. But it is not nearly as serviceable as those that were available a few years back that were hard approximately 1/4 inch think that were great on carpet with padding. Those available today on carpet with padding do not allow a chair to roll properly the wheels sink into the chair mat.