Sound Tight Encased Knot

A sound tight encased knot in lumber is a knot that is fully surrounded by wood fibers, without any visible cracks or voids. This type of knot is also sometimes referred to as a "dead" knot or "encased" knot.

Unlike sound tight knots, which may be visible on the surface of the wood, sound tight encased knots are completely surrounded by the surrounding wood fibers, creating a more uniform appearance.