AB Select/Nature Grade
Planks are selected to give grain and colour variation. There can be a small amount of light sapwood around the edge of the board. Small sound knots and smaller filled knots also add to the natural effect.
ABC Mixed Grade
Popular in species such as walnut. This grade displays more variation in grain and colour with larger sound & filled knots with more sapwood well distributed. Small filled cracks and dark streaks are also apparent.
CD Rustic Grade
More economical timber selection allows for more grain and colour variation with large sound knots and more filled knots well distributed. Small filled cracks and dark streaks are also apparent.