(officially Coniferous sawn timber. Shrinkage value ) is a Soviet-era state standard, still active in many CIS countries, that defines the shrinkage values for softwood lumber to ensure they meet nominal dimensions after drying.
: Verification values for actual thickness and width at various moisture levels. Full Text Access gost 67821 75
The full document contains several critical lookup tables used by manufacturers: (officially Coniferous sawn timber
: Moisture content must be determined in accordance with GOST 16588 . still active in many CIS countries
: If the wood's moisture content is higher than the standard nominal moisture level, the actual dimensions must be larger than the nominal ones by the established shrinkage value.