GRADE SELECT

 

Flooring grade “SELECT” embodies elegance. It is produced from selected material, which, due to the homogeneity of its structure, emphasizes the natural whiteness of Russian birch. Flooring can be made with a facet or without bevels.

 

SPECIFICATIONS 

 

Description of defect as per GOST 2140-81

Grade

 

Select

 

Nature

 

Country

Intergrown knots, light and dark

Not allowed

Allowed up to 20mm in diameter

Allowed up to 30mm in diameter

Black knots and particially intergrown, light and dark

 

Not allowed

 

Allowed up to 10mm in diameter

 

Allowed up to 20mm in diameter

 

 

Heartwood

 

 

Not allowed

Allowed in a form of strips of  light tint  up to 40% from plank surface

 

No limits

Face shake (among other things in watermarks and heartwood)

 

Not allowed

 

Not allowed

Allowed with width of no more than 1mm and with length no more than 50mm

 

Cracks in knots

 

Not allowed

Allowed with width of no more than 1mm and with length no more than 20mm

Allowed with width of no more than 1mm and with length no more than 30mm

Curly grain

Not allowed

Allowed

 

Pith

 

Not allowed

 

Inbark

 

 

Not allowed

Allowed with width of no more than 3mm

Allowed with width of no more than 5mm

 

Discoloration

 

Not allowed

 

Allowed

 

Mineral deposits

Allowed single strips with width no more than 1mm

 

 

Allowed

 

Watermark

 

Not allowed

Allowed in a form of thin strips

 

Allowed

 

Worm holes

 

Not allowed

 

Wane

 

Not allowed

Processing defects(flakes, chips, scores, tear, flay marks)

 

Not allowed

Allowed single up to 0,5mm in depth

Allowed single up to 0,5mm in depth

 

Burning

 

Not allowed

 

Allowed

Hit and miss areas

 

Not allowed