Originally Posted by mom-6

You might also want to check whether the chairmat you get has a lifetime warranty...some do, others don't. And be sure you match the pile depth of your carpet to the chairmat. If you get one for low pile carpet and your carpet has the deeper pile, the chairmat will crack fairly quickly (as one of the local law offices discovered when they bought the cheapest mat and it didn't work well for them - and they didn't get the one with a warranty either the first time).