1) Quality grading
The timber delivered to the factory is dried to the moisture content of 16% +/- 2%. The planks are visually divided into three grades: A, B and C.
Planks of the class A will become visible surfaces of logs and glued timber products. From the class B, major faults are removed, but smaller ones are permitted because the planks remain invisible. C class planks are completely diverted from production.
The strength sorting we perform as visual sorting, the persons performing the sorting have got the INSTA 142 LT sorting certificate valid for the sorting class.