What does Calibrated Paving Stone or Slate mean . Why use Calibrated stone or Slate

Why Use Calibrated Natural Stone Paving

Calibrated Sandstone Paving and slate is a way of finishing off Flagstones and Slabs of various thickness into a standard thickness (rather like a tile) in our case 20mm or 22mm. This is mainly produced with stones from India and China .

         Theses can be used and laid on a level screed bed rather than the harder to use un-calibrated stone paving. The calibration takes place on the under side of the stone and generally you will see lines running on the underside where the machinery has been used to level it off.

          Whilst Calibrated natural stone is more expensive than standard  non calibrated most landscapers quote less for laying so you should make them aware that you are going to purchase Calibrated and if you are using it yourself you will find it much easier to use.
  
          If you are using Natural Stone Paving in a house then it is really worth using calibrated stone as you will not have to worry about the different levels when laying it . 



Reasons to Use Calibrated Stone Paving

•Easier to lay
•No variance in thickness
•Lighter to pick up and carry
•More cost effective when it comes to delivery costs  (up to 22sq mts per tonne)
•Cheaper Costs for having laid.