Size and shape is perfect. However the quality of the mat is too thin/soft and leaves indentations from my chair and I weigh 125 lbs. It is also not very smooth to roll across. I would not buy this mat again.
The mat does not work as expected and I do not weight more than 190 lbs. The carpet was measured before I purchased and my chair sinks into the mat. Not happy.
The plastic mat does not do what is made to do. The mat is in the den on an area rug with a office style chair. The plastic mat slides all the time as the chair moves. Very disappointed. Does Staples have a different and better plastic mat?
I had the same mat for high pile carpet before and that one is much stiffer you can't possibly roll it. This one came rolled so it is softer which tends to create dips. Worst part though was the packaging tape it was secured with had totally melted on to the mat it took me an hour of goo-be-gone to remove all the residue.
It is a great mat if no one sits in the chair. With someone in the chair the casters make big dimples in the mat which makes it difficult to move the chair. The cleats on the backside are not deep enough to prevent the mat from sliding. I finally had to screw the mat to the floor.