Gost 8486 57 <2026 Update>

Maximum permitted lengths for surface, edge, or end cracks. Wane: Restrictions on the amount of bark left on the edges.

Standard lumber is typically delivered "dry" (moisture ), natural dry, or treated with antiseptics. Defect Limits: Each grade has specific allowances for: gost 8486 57

The standard divides lumber into categories based on processing and quality: Maximum permitted lengths for surface, edge, or end cracks

Limits on the diameter, type (sound, loose, decayed), and number of knots per unit of length. Maximum permitted lengths for surface

Primarily covers Pine (Сосна), Spruce (Ель), Larch (Лиственница), Cedar (Кедр), and Fir (Пихта). Common Applications by Grade Primary Use Cases Select Automotive, high-end furniture, and shipbuilding. Grade 1