Laminate Chair Mat-Oak-42x46 with Single Lip "Solid, 1-piece construction 42x46 including 22x9 Lip - Oak ( See Dimension Diagram Under Main Image)" 3/8" thickness ensures this wood chair mat won't crack, dimple, or break. Ships flat and is a solid non-bendable design that simulates a hard floor surface. Stain, Scratch and burn resistant Each mat is hand-made and tested in the USA to ensure the highest quality.