Old, naturally established trees often characterized by dense straight grain and a lack of knots and defects. A piece of sandpaper with abrasive particles that are spread out to prevent clogging. See also - closed coat . Outfeed The side of a power tool where the board exits. The weight of a piece of lumber that has been dried, under high temperatures, in an oven until it is devoid of all water.
Particle board is very dense, heavy, and flat.
Particleboard-core plywood Plywood that is made by gluing a thin layer of veneer to a piece of particleboard. Phloem The inner part of a tree's bark that delivers water and other nutrients. Photosynthesis A process that plants use to synthesize nutrients from water and minerals using sunlight. Phylum A class or group of plants. Phylum is a botanical term used by botanists to classify plants.