I guess I miscalculated the area it is not big enough. The chair wheels get stuck because I have a commercial carpeting and the mat lips don’t go deep enough in the carpet.
I like the mat - it works well on the tile floor as promised. However the delivery experience was not great. Delivery was late and the mat was not properly wrapped and arrived quite dirty.
Arrived tightly rolled up. Both of us had difficulty unrolling it. Used a hair dryer to make it lie flat. Took 5 minutes; not it can be used under desk.