By contrast, Oak is “ring porous” since the “spring growth” is softer and coarser than the summer growth. Typical woods are generally “diffuse porous” because growth is uniform throughout all seasons.
Porous – This term refers to hardwoods only as all softwoods are non- porous. Plywood – Sheet stock made from layers of veneers or plies, glued together with grain alternating in direction to counteract shrinkage and warpage. Plasticity – The property that describes a wood’s ability to retain its shape when bent. Planed –Machine dressed to a smooth surface. Advantages in Plain Sawn: (1) less costly and wasteful, hence more available (2) easier to kiln dry (3) averages wider widths. Plain (Flat) Sawn –Lumber sawn tangent to the tree’s annual rings. Pith – The small soft center core of a tree around which growth takes place. Pitch Pockets – Defects resulting from resin accumulated between the growth rings in softwoods. Pitch – A resinous, gummy substance in firs and pines.
Pecky – Localized patches of arrested decay on the board surface. Parquet – A geometric pattern of wood floorings.
0 kommentar(er)
