Measurements in inches:12x12 12x36 18x18 18x36 25x25 27x27, Multiple colors to choose from. Mix and match for unique styles,designs,and patterns.Great for shops,garages,man caves,she sheds,mud rooms,utility rooms, etc. the larger tiles being 25x25 and up are approximately .25 inches thick and are ideal for superior support and sound control the larger floor tiles are designed for applications such as: gyms, workout rooms, plat areas. etc. All floor tiles are .20$ a lbs. buyers would preferably purchase 1000 square feet or more. please contact at support@appertaincorp.com