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Quality requirements applicable to the purchase of round timber of coniferous and deciduous trees

General requirements for coniferous logs

Wood type: F (fir), P (pine)

• Log length – 4.8 m with at least 7 cm overlap.
• Small log (PJ-SP-Sm) diameter – from 14–17.9 cm, quality classes are not distinguished.
• Log (PJ-SP-St/Vd) diameter – from 18–50 cm (maximum diameter – 50 cm at the butt end with bark).
• Measurement: small logs (PJ-SP-Sm.) are measured by a group measuring method by applying a coefficient of 0.61; logs (PJ-SP-Vd./St.) are measured by a unit measuring method (at the top end).
• The seller must provide all documents on the purchase of wood documents proving the ownership, permission to cut the forest (a certified copy) and must indicate the contractor.

 Qualitative requirements for Class B and C coniferous logs

• Logs should be straight with maximum possible curvature (sweep) of up to 1.5 %.
• Not allowed – metal, soot, charcoal formation, radioactivity, rot, cracks, insect damage, staining, deadwood, rotting branches, and poor pruning.

Qualitative requirements for Class D coniferous logs

• Log curvature (sweep) is acceptable up to 4.5 %.
• Not allowed – metal, soot, charcoal formation, radioactivity, rot, deadwood, cracks, poor pruning, logs with previous ir existing double crotch, out-of-date logs with dark staining or mould.
• Unrestricted – ring width, grain angle, eccentric core, thinning .
• Allowed – branches (healthy, fully grown, not fully grown, and rotting), protuberance, insect damage up to 2 mm.

Qualitative requirements for deadwood coniferous small logs/logs

• Deadwood (PJ-SP-deadwood) of 14-50 cm in diameter, free of blue patches and cracks.
  

Wood type: F (fir), P (pine), B (birch), BA (black alder), A (aspen), L (linden), etc.

• Round timber (TR-SP – coniferous) and (TR-LP – deciduous) length – 2.4 m with at least 7 cm overlap.
• Round timber curvature (sweep) is acceptable up to 5 %.
• Log diameter at the top-end and the butt-end: at Akmenynai workshop: 14–32 cm, at Jūrė workshop: 14–28 cm, at Radviliškis and Marijampolė workshop: 14–50 cm.
• Measurement is performed by applying the group method of measuring: coniferous timber – a factor of 0.62 is used, deciduous timber – a factor of 0.58 is used.
• The seller must provide all documents on the purchase of wood documents proving the ownership, permission to cut the forest (a certified copy) and must indicate the contractor.
• Not allowed – metal, soot, charcoal formation, radioactivity, rot, poor pruning, double curvature (sweep), logs with previous and existing double crotch, deadwood.
• Allowed – branches (healthy, fully grown, not fully grown, and rotting), protuberance, insect damage up to 2 mm. 

Contacts

Head of State Raw Material Department
Kristina Kinderienė
Mob.: (+370) 620 56848
E-mail: k.kinderiene@jtimber.lt

Head of Private Raw Material and By-products Department
Kęstutis Patinskas
Mob.: (+370) 610 10042
E-mail: k.patinskas@jtimber.lt

Production facilities

• Pallet blanks
• Firewood
• Sawdust
• Sliver