All four sides are sawn, and the width of the wane (bark remnants) does not exceed permitted limits.
The standard divides lumber into categories based on processing and quality: gost 8486 57
Standard lumber is typically delivered "dry" (moisture ), natural dry, or treated with antiseptics. Defect Limits: Each grade has specific allowances for: All four sides are sawn, and the width
Limits on the diameter, type (sound, loose, decayed), and number of knots per unit of length. All four sides are sawn