I work from home so my floor mat gets heavy use. I have short nap carpet over padding. I used the staples paperclip test and measured carpet and pad at exactly 3/4". Based upon this measurement I ordered this mat. The mat is much thinner and more flexible than the floor mat it replaced. At first I thought it was way too thin but it is more flexible. So I concluded that perhaps it will trade thickness for flexibility resulting in durability. I had a hard time justifying the next floor mat up at twice the price. Time will tell if I made a good choice. If it falls apart I would have been better off with the more expensive mat.
This mat is too thin for anything other than Commercial grade carpet. If you have any pile at all to your carpet. Better get a thicker more rigid mat. Sorry to say they cost more $.
I bought this to replace a pad used on commercial carpet thinking it was as good as advertised. When it arrived it was exactly the same as one purchased locally for commercial grade carpet. I should have saved my money.
My fault for not measuring first but this is about 6" more narrow than the last one I had and that 6" makes a difference when swinging (or trying to swing) the chair around. Also mat is too soft and chair wheels sink in.