Gost 8486 87 [ Premium Quality ]

(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

Quality is assessed on the "worst" face or edge of the board to determine its final grade . RussianGost|Official Regulatory Library - GOST 8486-86 gost 8486 87

: Divided into five grades: Selective , Grade 1 , Grade 2 , Grade 3 , and Grade 4 . (often searched as 8486-87 due to its 1988

: Divided into four grades: Grade 1 , Grade 2 , Grade 3 , and Grade 4 . 2. Technical Requirements & Quality Grading System Quality is assessed on the "worst"

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