Multi-task Series Anchorbar Chair Mat For Carpet Up To 0.38", 45 X 53, ClearFor use with low pile carpet such as loop berber style up to 3 8" thick including padding. For moderate office use. Exclusive AnchorBar chair mat cleats hold firmly in place, yet are gentle on carpet and fingers. Crystal Edge creates a smooth finished edge while providing effortless roll on off mat. Standard Pile Carpet Mat with Crystal Edge. Mat Type: Chair Mat; Application: Carpets up to 3 8" thick (including padding); Width: 45"; Length: 53".