: It introduced a 5-grade system (1 through 5) based on defects like knots, cracks, and rot.

In the mid-1950s, the Soviet Union faced a massive rebuilding challenge. Cities needed housing, and the vast taiga held the answer: timber. But there was a problem—mills across the country were cutting wood to different sizes and quality levels, making large-scale construction a logistical nightmare.

: It mandated specific drying standards to prevent the warping and "crooked boards" that plagued earlier projects. Legacy and Evolution

🔗 You can view technical details for the modern successor on RussianGost or explore grading rules via the Russian Lumber Co. . RussianGost|Official Regulatory Library - GOST 8486-86