OAK TREND

Character: Nuanced wood color, vivid texture, the sapwood lends character to it 
Knot: 1 healthy knot up to a diameter of 3-4 mm is permitted in each slat. 1 dark knot per slat is permitted, up to a diameter of 3 mm 
Sapwood: Healthy sapwood is permitted up to the half of the slat width, brown sapwood is permitted up to 10 mm width. Greyish sapwood is permitted. Almost each slat contains sapwood.