Gost 8486 87 -

: Divided into four grades: Grade 1 , Grade 2 , Grade 3 , and Grade 4 . 2. Technical Requirements & Quality

: Divided into five grades: Selective , Grade 1 , Grade 2 , Grade 3 , and Grade 4 . gost 8486 87

(often searched as 8486-87 due to its 1988 effective date) is the primary technical standard for softwood lumber (pine, spruce, fir, larch, and cedar) in Russia and many CIS countries . It defines the quality, dimensions, and grading criteria for sawn timber intended for both domestic use and export . 1. Grading System : Divided into four grades: Grade 1 ,

Lumber is categorized based on the quality of the wood and its processing, specifically looking for defects like knots, cracks, and rot . specifically looking for defects like knots