This porcelain tile (grade 5) is ideal for floors and walls. The grey colour being a safe bet, you can choose this tile for any rooms in your house. Thanks to its good quality, it resists frost and can be installed both indoors and outdoors. Each box contains 20 tiles and covers up to 20 sq. ft. For installation, the 5-7mm grout joint is recommended. Clean routinely with concentrated tile cleaners that have a neutral pH for safe regular use. The product chosen should also be compatible with cleaning the grout joints at the same time. The tile is backed by a warranty against visual defect before installation.