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==Australian Standard Grade Timber== | |||
If the Knot has more than 50% cambium, than the size of the not must exceed 20 mm in diameter and no more than 2 such knots are permitted on any piece of timber. | |||
==Canadian Standards== | |||
A tight encased knot is a type of knot in wood that is surrounded by cambium layer, which is the layer of tissue between the bark and the wood of a tree. This thin layer of bark or cambium serves to encase the knot, providing a protective layer around it. | A tight encased knot is a type of knot in wood that is surrounded by cambium layer, which is the layer of tissue between the bark and the wood of a tree. This thin layer of bark or cambium serves to encase the knot, providing a protective layer around it. | ||