Mills Grey 60x60 20mm OutdoorTransform your garden, terrace, balcony or patio with these on trend outdoor tiles. A classic and contemporary shade of grey, this tile is frost proof, R11 slip rated and are hard wearing. Create a flow by installing these tiles from inside your house to your outside space for an impressive look of continuity. The slabs are easy to fit and clean and do not change their appearance, regardless of the weather. A 20mm thick porcelain tile, Mills Grey can