Knot

A circular or oval section in a board where a branch was attached to the tree trunk. Knots create darker, denser areas in the wood grain that can add rustic character or be considered a defect depending on the desired aesthetic. Tight knots are firmly embedded and structurally sound, while loose knots may fall out and leave holes. Knotty pine and knotty alder cabinets intentionally showcase knots as a design feature.