It doesn't seem to heavy but it was a cheaper one so guess I shouldn't complain. I had gotten my first one (I think @ Staples ) and it was a lot heavier and a bigger one too.......liked it much better......
This is a good basic mat. After a week of use however I have noticed "dents" in the plastic where the chair most frequently stands. But it looks good and provides a smooth even rolling surface which is its primary function.