Wood Packaging Material (WPM). The type identifies the amount of chemical retention which in turn determines how or where to best use the lumber. Denotes the woods species or a group of species with similar strengths. Mobile, AL. %\dbZ!1T09 F.#3s3+VdIr9f>LQOL7-1K)s+}OY'\awt_D FfhWnK8R5 @^L;@e\;7&8/O_PL;V@SqqZEy?9S=Z_{uh@fx:DSs=8! b+! Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! These factors, plus the moisture content at the time of milling, determine the grade assigned. However, some KD-HT wood at your local lumber yard might have a tag on the end of the lumber that specifies PT. SPIB also inspects mills that manufacture and label various lumber products under these rules. Details Made from quality Southern Pine lumber Available for . Selecting the correct type of treated wood for a project often depends on how and where it will be used. Those and other treatments are used for industrial purposes instead. Different chemicals have been used in the preservative bath, with changes being made to limit health risks to humans and animals. Treating plants that produce material under a given ESR are required to be monitored by third-party agencies approved by the International Accreditation Service (IAS). It appears as a new technology from Canada. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Recommended where appearance and strength are a consideration. The quest for decent boards begins. s In preparation for treatment, like lumber products are grouped together onto moving trams and placed into a large cylinder for treatment of the charge. While each charge is evaluated on its own merit, it is important to note that overall evaluation of plant performance is done over the most recent 20 samples. Termawood vapor-stabilization technology is a patented wood heat treatment technology, utilizing a natural thermochemical reaction and steam at temperatures of 230-240 C without ANY chemical additives. Twenty cores are taken randomly throughout the charge to measure the depth of preservative penetration in each core. Good-quality sheathing, fencing, shelving and other general purpose uses. Pressure treated wood can also be stained or sealed to enhance its color and for added protection. However, treated lumber may be kiln-dried or wet and will shrink, cup, and warp as it dries. It is used for all areas of residential construction from load bearing to trim. One even identifies its pressure treated pine fence boards as D & better so its appearance has small pin knots and some other blemishes. So if you see HT on the stamp theres no real reason to doubt its treated but there is no way to know for sure on a brand new deck. hVmO9 ^TUJk[ I did find a post about how the PT label might be cut off the end of a board and the stamp that is left shows HT or kiln dried HT. UC5A has almost double the weight of chemical protection as UC4C, and UC5B and UC5C both have more than three times the amount found in UC4C. I'm redoing my deck surface and the lumber yard stocks only prime lumber. Tel: 843-236-9399. At the end of the pressurized period, the solution is pumped out and stored for use on the next batch. Overly dry wood often needs a pilot hole before fastening to prevent splitting. As you look through our website, you will recognize the many different grades of lumber we stock. Ultimately, our program provides an economically sound and standardized method of treatment, evaluation, labeling and certification for producers, specifiers and end users of pressure treated wood products.

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