Roca Limestone Effect Ivory Matt Porcelain Wall & Floor Tile

You could but as they wouldn't be secured to a substrate they may be susceptible to damage. They are at their strongest when they are securely affixed to a substrate.

Either of these grouts would be a good choice Norcros Rock-Tite Brush in Grout 15kg - Steel Grey SKU: 451490 or Ultracolor Manhattan (Light Grey) 110 Flexible Grout 5kg SKU: 6011005A

No, they won't have a consistent colour throughout. This is due to the oxidization of the Porcelain.

These tiles do have an anti-slip rating of R11. The manufacturer of these tiles is Vitacer. You do not need to use pedestals with our outdoor tiles; you can lay the tiles directly onto a solid concrete base using a suitable adhesive and grout.

Use concrete to raise for best results. Allow to fully cure before laying tiles

No, we wouldn't recommend this as the cement won't absorb into the Porcelain tile efficiently enough to withstand thermal movement through the winter. We would advise laying a cement base. Once cured use our Adesilex P4 SKU: 218220 to adhere the tiles.

As long as there is suitable drainage underneath, the tiles can be installed without a grout joint. Especially if installed using a pedestal system.