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Tags: None The Duke Water-repelling at a molecular level The SPIB Treated Wood Quality Audit Program provides a customized third-party quality control program to help Treated Wood producers meet industry-approved standards. Abbreviations for framing-grade softwoods, from strongest to weakest, Doug Fir, D Fir- L: Douglas fir (L=western larch). A superior decking grade, suitable for plank floor where face serves as finish floor. Thats why every stick of lumber coming out of a sawmill is appraised by trained inspectors and given a grade stamp. Well-manufactured material evaluated by calibrated mechanical grading equipment which measures certain properties and sorts the lumber into various strength classifications. This information will then be combined with previous plant data to determine the plant performance status, as mentioned above. 2 x 6 x 16' Prime Pressure Treated #2 Lumber *BUY IN BULK* AND SAVE Dont know anything about the HT lumber, but if you are in the west, the PT is still Western Hemlock and looks pretty much the same as before. Mobile, AL. 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. 6^,fniSgdc24.L7` b. Once penetration is verified, the outer section of the cores is removed to measure the amount of preservative retained. Additionally, all cuts and drilled holes should be treated with preservatives to prevent damage to exposed untreated wood. A walk down the lumber aisle or through a lumberyard will provide some understanding of the differences between #1 and #2 grade pressure treated lumber, or increase your confusion. Lumber stamped #2 grade is commonly used for framing, lintels, rafters, trusses, joists, beams, and fencing. The SPIB grade-mark is recognized as a sign of integrity within the industry. Georgia-Pacific Corporation Pressure Treated Lumber - GlobalSpec Pressure treated wood can also be stained or sealed to enhance its color and for added protection. The solution protects the wood from rot, insects, fungus, mold, and mildew, and also turns the wood a brown tone. Similar to MCA, the treated wood shouldnt be used in contact with food or animal feed. The cores are removed by a specialized boring bit on the edge of the lumber, near the mid-length of the piece. Within all grades, there are planks that will be freer of blemishes and knots and may be called premium. How to Figure Out if Wood Has Been Pressure-Treated, and Why It Matters Pressure-treated wood can dry in about 1 month, whereas fresh wood provides an environment where fungi and bacteria produce rot and insects infest. Kiln-dried wood is crackproof but pressure-treated wood is not guaranteed against warping, shrinkage, or splitting. Im building a deck and am getting conflicting info on the difference between #1 and #2 PT. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. My 2-Story Addition Build in Progress Link . My electrical answers are based on 2017 NEC, you may have local amendments. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. An internet search says it has to do with less knots and quality, and that #1 is of higher quality. Knots must be well spaced and tight, so they wont fall out, and no larger than 2-3/4 in a 28. All rights reserved. o>>QS-RSnwO4piq4Szh+jkS3NQn(:;^unn^}Q8ws{7sFS Details Made from quality Southern Pine lumber Available for . An easy way to identify the right framing lumber for your needs. SYP holds almost 85% of the U.S. pressure treated market. A quick depressurization cycle then removes any excess from the wood before it is removed from the treatment cylinder. 32524-0915 | Office: (850) 434-2611 | Fax: (850) 434-1290. Grade based on No.1 Dimension Lumber except wane and other characteristics that affect appearance are limited. hVmO9 ^TUJk[ As a result, we have more grades available to our customers now than at any other time in the history of our company. Pro Note: All copper-based wood preservative solutions will corrode unprotected iron and steel brackets and fasteners. Wood treated with water-based preservatives for saltwater immersion has significantly higher retention levels than other types and categories. #2 Prime grade southern yellow pine. Pressure-Treated Southern Pine She said that some of the new PT looks so much like untreated they have to add a color enhancer to it. Each charge sheet is reviewed to verify that all IQC requirements have been met and properly documented. Standards Revised The 2016 Book of Standards published by the American Wood Protection Association(AWPA) includes revisions to treated wood standards: Ground Contact-treated wood is now required when installed less than 6 off the ground; when it is wetted on a frequent and recurring basis; for joists and beams that are difficult to maintain, repair or replace and are critical to the performance and safety of the structure; when used in tropical climates. #1 is better. No.1 Prime No.2 Prime H ighqu al ty, m ed nc r sfo . WestWood Heat Treated Lumber Production Corporation is unique technology that uses heat treatment instead of chemicals for timber processing to significantly improve various characteristics of wood. From the cedar shakes, facia, and trim of a house to the sill plate and wooden foundations or supports, pressure treated wood is common in residential construction. 1s and Selects, to boot. x 12 in. It needs to be treated every 2 to 3 years (depending on the environment) to protect it from moisture damage. endstream endobj 145 0 obj <>stream &_ePM&dWCh (KD-HT means the wood was also heat treated to kill pests, a requirement for imported lumber.) Using expensive wood that is naturally resistant may not fit the budget. I will try to post-some new treated lumber being sold in the wood depot I go to referd to as BLUE if I am not mistaken.