Southern Yellow Pine Lumber Grades
The various grades of pine lumber are found in things ranging from construction projects to furniture interior trim light framing wooden decks and more.
Southern yellow pine lumber grades. Grades are assigned by visual inspection of each piece at the mill. Table 1 provides the design values for visually graded southern pine dimension lumber that became effective june 1 2013. Each grade limits certain characteristics such as knots checks and splits. While much of the process used to pressure treat southern yellow pine is a trade secret it has been thoroughly tested by the scientific certification systems lab or scs a leader in environmentally friendly building product certification.
2 and 3 thick 8 and wider. Construction markets this inspection is more a judgement of the relative. This product is available in lengths from 8 through 20. The grading itself happens at the mill where the wood is visually inspected.
The yellawood brand has stood for quality pressure treated pine for over 50 years. 4 southern yellow pine export grades grades southern yellow pine is produced in different grades as well as sizes. Each of these classes contains several grades of lumber. 4 and less in thicknes s 2 and wider.
This 2 6 decking is manufactured from a dense select structural or 1 prime southern yellow pine and is a brand produced by southern pine lumber company. Softwood pine lumber is lumped into several different classes according to the university of missouri extension service. Southern yellow pine grades include c 1 2 d better better heart better vertical grain better vertical grain heart. All four edges are machined to a 1 2 radius and treated to a ground contact retention of copper azole chemical preservative.
Visually graded dimension lumber 2 to 4 thick 2 and wider. See dimension lumber grades end glued face glued and edge glued southern pine in glued assemblies including stress rated grades of finger jointed 2 dimension lumber. Pdf downloads of southern pine design value tables are available. Download a pdf tables 1 and 2.