No limits on colour variation. Contrasting sapwood, medullary spots, chemical tint and swirl grain allowed. Restored knots (25mm and smaller) and other insignificant defects allowed. Surface appears sufficiently uniform in tone and texture when stained with dark colours; knots and other irregularities almost undiscernible.
Moderate colour variation. Non-contrasting sapwood, medullary spots, chemical tint and swirl grain allowed. Restored knots (35mm and smaller) and other insignificant defects allowed. Surface appears sufficiently uniform in tone and texture when stained with dark colours; knots and other irregularities almost undiscernible. 1 Natur grade used for 190mm wide planks.
190mm wide planks. No limits on colour variation, contrasting sapwood, medullary spots and swirl grain. Restored or open knots