This isn't worth 400 characters. The pad is deep enough as far as how far under the desk and out into the room is concerned but allows for very little lateral movement of the castered chair. Just have to keep the limitation in mind as to how much to move the chair and in what direction particularly when sitting in it. I tried to remove the "A little shallow" comment but it doesn't stay gone from the review. I went and looked at the mat and saw that it really isn't too shallow but rather too narrow.
I recently redecorated my condo. I spend a lot of time at my desk and needed a heavy chair mat to protect my new carpet....very satisfied with this mat.
Mat is too soft five wheel chair sinks down into the mat. Bevel sides will not allow chair to return to the mat unless the chair is lifted up. I have had better products for less money from your competitors I am totally displeased Bayle Ryan