Thick chair mats for plush home or office carpet. Chair mats for the thickest carpets are the best of the best and made to last. Made for the thickest carpet and padding, these chair mats help to reduce dishing and craters that can cause rolling problems on home type carpet. This chair mat is the number one selling, thickest chair mat made in America period. Lifetime warranty and free shipping also help to keep our customers happy.