is spib no 2 prime pressure treated

Check sources of supply for available grades and sizes. High quality, limited in characteristics that affect strength or stiffness. Tags: None The Duke Kiln-dried wood is crackproof but pressure-treated wood is not guaranteed against warping, shrinkage, or splitting. s Lumber that is imported or for export requires the designation KD-HT, which means it has been kiln-dried and heat-treated to kill insects. Pressure treated wood can also be stained or sealed to enhance its color and for added protection. Dressed to standard dry size prior to machine stress rating, and visually graded to assure that characteristics affecting strength are no more serious than the limiting characteristics for each grade. It could be HT and then PTd later? H\n0l/$x\$-"-! Recommended where appearance and strength are a consideration. There are many questions about the different treated wood products in our market today. #2 Prime grade southern yellow pine. A Production Category is defined as a given preservative, specie and retention combination. The lumber has the structural strength it is graded with but has fewer blemishes or knots, so a better appearance. WestWood Heat Treated Lumber Production Corporation vapor-stabilization technology is a patented wood heat treatment technology, utilizing a natural thermochemical reaction and steam at temperatures of 230-240 C (450 F) and exclusive of any chemical additives. It is the material of choice with both professionals and do-it-yourselfers for projects exposed to the rigors of weather, hot, humid climates, decay, and termites. The very basic quality control attributes to evaluate the level of treatment in lumber products is the determination of the depth of preservative penetration and the analysis of preservative retention in a specified, outer assay zone. Premium and select classifications and the percentage of clear wood are appearance grades used by some mills and retailers. Generally clear, although a. H|TnT1}W1yi= hEN4Kg8 bvlbh%gCXcX]NDRnFiUH>.Sl6Vi\(f^j+d}IT#h3Si [j6sG1Pbh`sX9W.+|FdqvJY/nm Sd@{D Treated wood products must meet very specific quality requirements to meet the building code. Lumber is stamped after it is milled and prior to being pressure treated.

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