- SELEKT
- healthy knots < 3 mm (if width > 180 mm, knots < 8 mm);
- rare occurred light timber color variation and white spots.
- Standard dimensions:14*90*500-1100mm,14*130/150*500-1800mm
- NATUR
- sound not fallen out knots <15 mm;(if width>180mm,knots<20mm);
- rare occurred fallen out knots<8mm;
- knots can be sprung,but filled;
- crack in the end of board<15mm, width<1mm;
- all cracks are filled;medullary ray;
- light color variation, rare occurred white spots.
- Standard dimension:14*90*500-1100mm,14*130/150*500-1800mm
20*180*500-2300mm
- RUSTIK
- sound cracked knots<40 mm;(if width>180mm,knots<50mm);
- rare occurred fallen out knots;crack in the end of board<20mm, width<1mm;
- all cracks are filled;
- natural color variation, white spots;medullary ray;traces of heart.
- Standard dimensions:14*130/150*500-2450mm,20*180*500-2300mm
- DISCOLOR
- sound cracked knots. It‘s size and quantity unlimited;
- rare occurred fallen out knots;fluting of timber;
- crack in the end of board<20mm,width<1mm;
- all cracks are filled;medullary ray;heart boards;big discoloration;
- outside and inside sapwoods<1/3 of the board width;
- rare occurred timber fomentation,but undamaging it‘s hardness.Standard dimensions:14*130/150*500-2450mm,20*180*500-2450mm
