Rustic quality accepts multiple healthy knots, end cracks twice the width of the piece. Vicious knots larger than 30 mm in diameter, the actual heart and the clogged bark are rehabilitated. Insect holes and rot are not accepted. Density 720 kg / m3.
"Standard" quality is recommended for those areas where economic efficiency has priority. It is ideal for making stairs, doors, long elements, etc. Cracks on the end twice the width of the piece and smoothed knots are accepted. Density: 700 kg / m3