SVEZA Interior and Exterior Plywood grades Defects Part 16:Knots: sound, intergrown, light and dark
Knots: sound, intergrown, light and dark
Intergrown knot has its annual rings intergrown with the surrounding wood through at least 3/4 of the knot cross-section perimeter.
Sound knot is a knot with rot-free wood.
Light sound knot is a sound knot of a similar color as the surrounding wood.
Dark sound knot is a sound knot of a considerably darker color than the surrounding wood, richly permeated with gum, tannin and heartwood agents, often mottled.
|The average of the minimum and the maximum diameters is taken as the knot (hole) diameter.|