Installing Natural Stone Indoors

Stone for indoor use can vary from 1/2” to 2” thick. Generally, dimensional cut stones will be of thinner variety. If you are planning for a random (or irregular) flagstone look, you will need to make special accommodations. 

At 3/4” to 1 1/4” thick, you have about a half dozen choices including: Silver Mica, Gold Mica, and Bluestone. 

If you can accommodate stone up to 2” thick, your choices become much greater. 

In order to do this, you will need to make accommodations at the framing stage so there will be a smoother transition from one surface to another.

                           3/4" Stone Plus Mortar } 1" } 2 1/2"
                             Expanded Metal Lath
                                       Moister Barrier
                                        Wonder Board } 3/4"
                                                Sub Floor } 3/4"
                                                        Joist
                              2" Stone Plus Mortar } 2 1/4" } 3 3/4"
                                        Wonder Board } 3/4"
                                                Sub Floor } 3/4"
                                                        Joist
OTHER CONSIDERATIONS:
  • In floor Radiant Heating.
  • If the material is gauged consistent thickness, it may be thin set.

Please consult your Stone Mason