I purchased 2 sizes of this mat. I read reviews that said the mat corners were not square - these were pretty darn close to square. They are, however, not quite true to size. The small mat (I got 2 of these and they are identical) should be 18" x 30". It is actually 17 1/2 " x 29 1/4". The large mat should be 23" x 7' (84"). It is actually 22 1/2" x 81 3/4". I read that these mats are thin, which they are, so I bought the Wayfair Basics Hold Fast Gripper Non-Slip Rug Pad to put underneath. The little bit of extra padding makes a noticeable difference while not lifting the mat to a height where I might trip on it. I thought that the rubber on the mat would stick to the rubber pad, but it doesn't. Any suggestions would be welcomed! The mats look great in my kitchen. I do wish that Wayfair would offer wider kitchen mats.