Crossville ChromaColor 6 Pack Cotton 18 in x 18 in Matte Porcelain Stone Look Floor and Wall Tile Color:Slate a dirt and scratch resistant finish Item Weight:17.637 a dirt and scratch resistant finish that requires little maintenance and will look good as new even after decades of use 28 Suggested Grout Line (in 5 PEI Rating 5 heavy plus traffic Breaking Strength in Pounds 251 499 Frost Resistant Yes Water Absorption Impervious Shade Variation V3 (moderate variation) Manufacturer Color Finish Cotton Warranty 1 year limited Sold As Carton CA Residents: Prop 65 Warning(s) No Common Measurement (W x L) 18 in x 18 in For Use with Bathroom Walls Yes For Use with Kitchen Counters Yes For Use with Patios No For Use with Shower Floors No Sample Item Number 4x4lw best practice is to do a dry layout prior to installation by mixing tiles from multiple boxes to view the range of shades and textures If an offset pattern is desired for tiles greater than 15 inches