TIL014
Normally size have 12"x12"(305x305mm), 16"x16" (400x400mm), 18"x18" (457x457mm) , and 24'x24"(600x600mm) up to a maximum size, thickness ranges from 8-12mm, 10-15mm ,9-11mm,10-15mm,and 10-20mm, also can produce slate thickness as per your requirement.
Their surface processing have:
1. Natural split
2. Honed
3. Tumbled
4. Random
5. Others
Back Side: Calibrated & un-calibrated (naturally cleft with tolerances)