is spib no 2 prime pressure treated

This website is presented by SFPA members, including: 2023 Southern Forest Products Association. 139 0 obj <> endobj 153 0 obj <>/Filter/FlateDecode/ID[]/Index[139 24]/Info 138 0 R/Length 80/Prev 801267/Root 140 0 R/Size 163/Type/XRef/W[1 2 1]>>stream Recommended for construction where high strength, stiffness and good appearance are desired. The grade mark can include "1W" or "2W" if visually graded to the wane requirements for No.1 or No.2 dimension lumber, respectively. No. Wearing safety glasses or a shield protects the eyes from dust and debris when drilling, cutting, or sanding, and a dust mask will prevent inhalation of dust and chemicals. An excellent decking grade that can be used face side down for roof decking or face side up for floor decking. Wood is a sustainable product, making it . Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. 1, No. It needs to be treated every 2 to 3 years (depending on the environment) to protect it from moisture damage. IQC results of treatment for each charge are required to be documented in the plant records to correspond to the individual charge reports. There are different types of treatment and lumber grades for different uses. 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. Luckily, a more budget-friendly option of pressure treated lumber grades is available. Some lumber is also treated for fire protection and used throughout different areas of residential, commercial, and industrial construction. Douglas fir, fir, and hemlock dominate in the western U.S. and Canada, with Douglas fir ranking the strongest of the commonly milled and treated softwoods, while the fir and hemlock are slightly stronger than SPF. KD and KD-HT are often more expensive and less susceptible to warping and shrinkage. When pressure treated it is resistant to decay and termites. More knots than Premium grade Application of the product requires pressure treatment by an approved treating process and preservative for. 6^,fniSgdc24.L7` b. It appears as a new technology from Canada. Selecting the correct type of treated wood for a project often depends on how and where it will be used. endstream endobj 145 0 obj <>stream It is most commonly used for sheathing and applications where a fine finish is not required. It may have poor drainage and air circulation, or like a sill plate, is difficult to repair or maintain. Ok, now that weve got that covered, lets go to the treating plant! *Load duration factors greater than 1.6 shall not apply to structural members pressure-treated with water-borne . For a better experience, please enable JavaScript in your browser before proceeding. S;t HmM~[3`~Dl1Cj^x{}g.-GWlEu Yl[k4!42#>#13"J! 1pJ`w&Im0m/=BA!^/[xN XX=xEzGjB A Production Category is defined as a given preservative, specie and retention combination. Those stacks also include some No. This Old House general contractor Tom Silva usually buys stacks of No. Modern chemical baths and pressurization began in the early half of the 20th century. The treating process includes an initial vacuum to remove the excess moisture and air to aid in the absorption process. I don't think HD carries it. Recommended where appearance and strength are a consideration. In this article, well explain pressure treated (pt) lumber, the different types and uses, and how it is graded. Construction grade is #1 and Standard is #2. Final Price $ 27 40. each. Suitable for stud uses including use in load-bearing walls. It must specifically be labeled ground contact. We think it is only appropriate to attempt to describe these grades for your reference to help you better understand what you currently stock and what is additionally available to you and your customers. Pressure treated to a Ground Contact retention of either ACQ or CA Chemical preservative. She said that some of the new PT looks so much like untreated they have to add a color enhancer to it. Borates are sodium salts used in water-based pressure treatment solutions. Premium is often identified as A, B, C, and D. A has no visible defects, knots, or splits, B has a few small defects visible, C may have small knots on one side and none on the other, and D may have pin size (up to 1/2) knots or small defects on both sides. 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). The clear appearance makes it a choice for trim, furniture, and cabinetry. The label will show w/CE which means with color enhancement. Usable lengths suitable for bracing, blocking, bulkheading and other general utility purposes where strength and appearance are not a consideration. Youll get less movement with kiln-dried (KD) or surface-dry (S-DRY) lumber, which has a moisture content between 16 and 19 percent. Too much. Treated wood will shrink as it dries and expand when wet and may acquire surface checks and cracks over time. This specific set of data for each charge is called a charge report. A specific indicator or a specific method is then used to reveal the depth and consistency of preservative penetration. D Fir-L or Doug Fir for Douglas fir or larch (L), H-F, Hem-fir, or Hem for hemlock-fir or hemlock. Office: (850) 434-2611 | Toll Free: (800) 995-7742 By the end of the article, youll have a better understanding of what different pressure treatments mean, and how to select the grade and type for the use you intend. However, they make an ideal solution for use in arid or dry locations. The unique cellular structure of Southern Pine permits deep and uniform penetration of preservatives, rendering the wood useless as a food source for fungi, termites and micro-organisms. This cryptic tattoo indicates that a piece of wood meets established standards for strength and stiffness, and it also offers useful information about the type of wood and how much moisture it contains. Combination for B&B and C grades; satisfies requirements for. The retention level is measured in pounds of chemical per cubic foot of wood (pcf). The chamber is then flooded with a diluted chemical solution, and hydraulic pressure applied for 20 to 60 minutes to force the solution deeper into the wood. Some on this forum think that is a waste of time, but I think it extends the life of the lumber. Please keep in mind, that with the advent of prime grades, the differences between the grades of lumber have become even more defined and distinct. Pressure treated lumber has been treated with a chemical solution to protect it from insects, mold, mildew, and rot. May have to look at Home Depot closer, since they carry #1 above ground. Application of these grade-marks represents assurance by the manufacturer that their Southern Pine lumber product is properly manufactured and meets the grade requirements of their customers, ensuring consumer confidence in Southern Pine lumber products. Ill suffer with pt. Pressure-Treated Pine meets the highest grading standards for strength and appearance. A joist made of Douglas fir, for instance, will cover a greater span than a hemlock joist of the same size and grade. x 8 ft. #2 Prime or Better Ground Contact Pressure-Treated Lumber is a . The wood is 43% clear for appearance grading. My electrical answers are based on 2017 NEC, you may have local amendments. It was widely used as a preservative from the mid-1930s to 2004. #2 Prime grade southern yellow pine. Industry quality-control standards for the manufacture and preservation of Southern Pine ensure long-term performance and minimize environmental impact. 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. It's distinctive wood grain appearance is great for decorative finishing. Inspection Practices for Treated Lumber Products. All lumber must identify the association or agency accredited with overseeing the grading MLB is the Maritime Lumber Bureau. I didn't ask but I doubt the deck boards and 2x are ground contact which deals with the amount of preservatives used on the lumber. Thats why every stick of lumber coming out of a sawmill is appraised by trained inspectors and given a grade stamp. Powered by Discourse, best viewed with JavaScript enabled, www.strongtie.com/products/ptwoodfaqs.html, http://www.anthonyforest.com/pdfs/AWPA-Use-Category-System-U1-07.pdf. The wood is commonly used for light construction or framing where it isnt visible, or for bracing, packaging, and shipping purposes. THE TREATING PROCESS, QUALITY AND IQC RESPONSIBILITIES. All rights reserved. Many homes have fences, retaining walls, and garden boxes constructed of treated wood, and even the wooden utility poles supplying power and communications are pressure treated. Premier structural grades. I grabbed an exerpt here and there and put it all together, for I was on a lot of different sites and suppliers. The longer the wood is in the pressure chamber, the greater the content of chemical preservatives forced into and retained in the wood. 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. &_ePM&dWCh s Other than the features that depend on the type of tree the wood came from (i.e. Exciting stuffyou wont want to miss that! The look of the wood is only important if it is highly visible, such as deck boards, railings, and other visible structural members. Maximum spans were calculated using design . Recommended for general construction purposes where appearance is not a controlling factor. it also has several good links. An economical roof decking which conforms to No. 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. http://www.anthonyforest.com/pdfs/AWPA-Use-Category-System-U1-07.pdf. Home Derpo person said that #2 is ground contact and stronger. Penetration is verified on-site by the third-party inspector before sending the assay zones to the agency laboratory for retention analysis. The wood then is dried naturally or in a kiln to evaporate the water out, leaving the preservatives behind. Pressure treated wood for ground contact commonly has twice the chemical retention level as above ground rated lumber. Both DIYers and building professionals will like these garden and outdoor living ideas and plans. This website is presented by SFPA members, including: 2023 Southern Forest Products Association. 32524-0915 | Office: (850) 434-2611 | Fax: (850) 434-1290. Even if you are on the right track, you will still get run over if you just sit there. OK then thanks. wo*kS` 8r 5f)J `A%pWIu `lt=K!a4'(Xg^dU|$a!/,.-`0ir }dF\Nguyi12(8+DU Zty The grade mark can include "1W" or "2W" if visually graded to the wane requirements for No.1 or No.2 dimension lumber, respectively. Generally clear, although a. These factors, plus the moisture content at the time of milling, determine the grade assigned. Larger sizes conform to Dense Structural 65 Structural Lumber except for dense grain requirement. No.1 Prime No.2 Prime H ighqu al ty, m ed nc r sfo . An easy way to identify the right framing lumber for your needs. MCA can be used inside or out, above ground, in-ground, or in fresh-water contact residential areas. Some wood goes through a machine that incises small cuts into the surfaces for deeper chemical protection. Pressure treated lumber comes in a variety of lengths, widths, and thicknesses and from different species of softwood. ), how wood is used also comes down to whether or not it's pressure treated. Non-stress rated, but economical for general utility purposes such as bracing, blocking, bulkheading, etc. Description & Documents #2 prime southern yellow pine with virtually no wane CA-C Above Ground pressure treated exterior wood protected by Ecolife (EL2); a stabilizing formula that repels water keeps boards straighter and looking better longer Ecolife (EL2) provides built-in water repellency that lasts for up to 3 The lumber is inspected for knots, splits, and other defects that can weaken the woods structural strength. However, some KD-HT wood at your local lumber yard might have a tag on the end of the lumber that specifies PT. has the outer 0-0.6 removed while lumber thicker than 2 (44, 46, 66) has the outer 0-1.0 removed for assay. Pressure treated lumber is available in 1, 5/4, 2, 4, and 6 nominal thicknesses, and widths up to 12. Re-inspection of plant production is performed on a routine frequency by the agency. Here are the grades and types of lumber most commonly available, plus the percentage of clear wood you could expect for the appearance market or grade: Lumber with few or no knots or blemishes may be called premium by some mills or retailers to capitalize on DIYers wish for better-looking lumber. Sep 13, 2020 i would not use that for cutting boards,looks to be a soft wood and you want a hardwood like maple or cherry. The Fora platform includes forum software by XenForo. Dont know how PT Pine looks. SPIB is subject to continual review by ALSC to ensure that the laboratory and agency records remain in compliance. Provides good appearance with some of, Maximum recommended support spacing is 24" on center (16" on center for Imported Southern Pine), High-quality product, recommended where smallest knots are, Slightly less restrictive than premium grade. Premium is usually #1 or #2 grade lumber. Suitable for use as individual laminations for structural glued laminated timbers. 2 kd 19 ht 434 and spib ht 434 it looks like it's kiln dried and heat treated, but is it pressure treated to resist rot? Different chemical solutions are used to create treated lumber. #2 Prime Southern Yellow Pine Above Ground Actual: 1.5-in x 5.5-in x 12-ft #2 Prime Southern Yellow Pine Above Ground Actual: 1.5-in x 5.5-in x 12-ft Treated for protection against fungal decay, rot and termites Treatment meets AWPA (American Wood Protection As Hi Raymond, it looks like this 2 in. Check sources of supply for available grades and sizes. THIRD-PARTY AGENCY AUDIT and SAMPLING PROCEDURES. Lumber with more checks, splits, wane, well-spaced larger knots and holes, and a grain slope of 1 in 4 are stamped #3 or construction grade. The recommended type of treated wood for in-ground use is UC4B and UC4C; UC4B has a higher retention level than lower graded types, and UC4C has even more. To qualify for a SPIB grade-marking license, a mill must have verified credentials in the manufacturing, seasoning, and grading of Southern Pine lumber. SPIB also inspects mills that manufacture and label various lumber products under these rules. Copyright 2023 This Old House Ventures, LLC. Quality control for treating should be done by an approved inspection agency. Another brand of heat treated wood that can be used for decking. The cores are removed by a specialized boring bit on the edge of the lumber, near the mid-length of the piece. It is used to build exterior stairs, for posts, sheathing, siding, porches, decking, and railings too. MSR lumber is distinguished from visually stress graded lumber in that each piece is non-destructively tested. The scope of the ALSC review may also include physical inspection of treated wood products at the plant location to verify penetration and retention as a means of comparing against previous findings by the agency. The plant is required to keep very specific information for each charge treated in its records system. But in an existing house where the framing is already dry, hell use more stable, and more costly, KD lumber, or even MC-15 lumber, which has a moisture content of 15 percent or less. vX63t$i"CIdxGFG(bpX@F2@2@pGG1Z@? It is a very strong and stiff softwood, and dense too. Southern yellow pine (SYP) is very strong and is common in the eastern U.S. A mixture of spruce, pine, and fir (SPF) dominate much of the northern U.S. and eastern and central Canada and isnt as strong as SYP. There is a barcode with product information, registration logo or symbol noting the standards followed, and the use category (UC4A for Ground Contact). Different types of treated lumber are used in many aspects of residential, commercial, and industrial construction where moisture or ground exposure may occur. Top-quality lumber 2x4 through 2x12 are either #2 Prime grade, #2 & Better/Appearance grade or #1 grade. The quest for decent boards begins. Lumber is stamped after it is milled and prior to being pressure treated. Basements and bathrooms are other areas where pressure treated wood can be used to frame interior walls to protect against moisture, mildew, and mold damage. 2023 Southern Pine Inspection Bureau | All Rights Reserved | SitemapP.O. Research shows that Southern Pine can be expected to last for many decades when properly treated and installed for its intended use. HD and Lowe's only had lower grade. Some mills may then identify it A, B, C, or D for appearance based on how clear or free it is of knots and blemishes. SPIB is subject to continual review by IAS to ensure that the laboratory and agency records remain in compliance. Details Made from quality Southern Pine lumber Available for . This service is intended to assist mills in supplying products that meet the standards for wood packaging Pressurization then forces the liquid deep into the wood. #2 or #1 is the quality. It is stamped S-GRN for surface-green or AD for air-dried. But not all defects are obvious. MC-15 identifies lumber as having 15% or less moisture content. Stud is a fifth designation, meaning its good for a load-bearing wall. Pressure treatment is an affordable alternative to expensive naturally rot-resistant lumber. the Southern Pine Inspection Bureau (SPIB) Standard Grading Rules for Southern Pine Lumber. Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our expertsstraight to your inbox. MCA is an environmentally friendly water-based preservative considered safe for humans and animals and is an alternative to CCA. Lumber that is 2 or less in thickness (24, 26, 5/4 decking, etc.) Before a given charge can actually go into the plants treated inventory to be ready for shipment, it must first be evaluated for penetration. But using bigger joists of a cheaper species might save you money without loss of strength. All four longitudinal faces must be free of pith and/or heartwood. To qualify for a SPIB grade-marking license, a mill must have verified credentials in the manufacturing, seasoning, and grading of Southern Pine lumber. A study by the EPA in 2000 deemed it too hazardous for residential use, and in 2003 the lumber industry agreed to stop using it for residential purposes. Utility grade is #3 grade lumber and has even fewer restrictions regarding knots and defects compared to other grades. I do like to cover the tops of the joists and beams with ice and water shield. The lumber may have splits up to 1.5 times the boards width, knots no larger than 3-1/2, and one hole every 2. Email: cspsales@canfor.com. Dimension stability improves 12-17 times compared to untreated wood As I understand it, the grade refers to the number of knots in a given length. The size, location, and the number of knots and other defects, and the slope of the wood grain affect the structural strength of lumber. What is the Best Pressure Treated Wood for Decks? Recommended where high strength, stiffness and good appearance are desired. Pressure treated wood may require several weeks or even months to dry before it will absorb stain or paint. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Minimum retention values are specified in the AWPA BOS for those preservative systems listed under AWPA and in the various Quality Manuals for those systems specified by a given ESR. 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. Im building a deck and am getting conflicting info on the difference between #1 and #2 PT. The preservatives provide protection against rot, insects, mold, and fungi, so the wood lasts longer. Select grade lumber may have a knothole every 4 and splits can not be longer than the board is wide. Each American Lumber Standard Committee (ALSC) certified agency has its own registered grade-mark. Here is a list and description of some of them. CCA is a mixture of chromium, copper, and arsenic that turns wood green. UC3B or UC4A are best for ground contact use. 43:Gs * endstream endobj 143 0 obj <>stream Being 80% or more clear of defects, it is often used for cabinetry, furniture, and trim. Office: (850) 434-2611 | Toll Free: (800) 995-7742 Use in-ground type lumber where there is a greater risk of deterioration or severe environmental exposure, or for critical structural components like foundation posts, exposure to fresh or groundwater, or utility poles. The two remaining designations, while not very useful to a homeowner, enable grading agencies to enforce their standards. Water-repelling at a molecular level Got the ledger #2 GC from the lumber yard. The charge is considered conforming if each component meets the minimum required retention AND the total, combined minimum retention is met. I noticed that a 2x8x16 is 5 bucks less a board at HD than the quote that a lumber yard gave, but everything the lumber yard quoted is ground contact. The amount of moisture in the wood at the time of milling is noted. The grade-mark must contain the first four items listed below; the fifth item is optional. The molecular changes in wood composition have a result of dimensional stabilization, protection against rot and wither, and as a result, expanded use opportunities. JavaScript is disabled. As you look through our website, you will recognize the many different grades of lumber we stock. Im not going to struggle with huge bows and twisting. Decking materials such as 26 and 5/46 frequently are of better-looking #1 and #2 lumber. Georgia-Pacific pressure treated lumber is an economical building material that offers all the benefits of wood, plus built-in resistance to decay and termite damage. There is no structural premium grade, it is strictly a term for bright looking wood free of blemishes or knots. HWW&)@@vaU\P}qtyneG@@x7]Ia8QNoW%T"HH zB-rJ(TG?e)-3"kzvdkMwTXcfb`UML||d]/t@Q1~Q#|30LQA RG vy_rfazhfx NL+XEB7Hb%Y5?_9_h4}EZ^R Z}'a1+&z&j+m}b? z[TWL*baKq @NO{CHpXa2 PkHX%W!AH0aP1 bB z%Oev+Yh!UL$(MJ \N 32524-0915 Like all lumber, the fewer knots, blemishes, or defects, the higher the grade. (@ 2=h/jO,,5rB G 5~7 ol}E|Cf6zg/I !^ endstream endobj 144 0 obj <>stream Machine Stress Rated (MSR) lumber is evaluated by mechanical stress rating equipment. Longleaf, shortleaf, loblolly, and slash are some of the native southeastern pines that are classified as SYP. However, treated lumber may be kiln-dried or wet and will shrink, cup, and warp as it dries. Good appearance, but graded primarily for strength and serviceability. A number that identifies the mill where the lumber was produced. A superior decking grade, suitable for plank floor where face serves as finish floor. two existing joists with this stamp are not dark in color like i think pressure treated wood should be I used to live to work. The resulting hole will be filled with a treated wood plug to prevent easy access by insects or decay fungi. "Stud" is a fifth designation, meaning it's good for a load-bearing wall. It is stronger than #2 or #3 grade lumber. maple, oak, birch, etc. Advances in preservative treatments, environmental management and sustainable forestry practices make treated wood an ecologically sound building material. Southern yellow pine in the eastern U.S., spruce pine and fir in the northern U.S. and eastern-central Canada, and Douglas fir, fir, and hemlock in the western U.S. and Canada. it is damn difficult to tell the differance on the new stuff. The treated wood is then taken to the yard to dry naturally or to the drying kilns before shipping to the retailer. High utility value where appearance is. All rights reserved. The most noticeable difference may be the price and scarcity of #1 grade lumber. You Save $3.39 with Mail-In Rebate. r Research shows that . The kd19 is the customers assurance that it was dried to the proper level before it left the plant. One wide face and both adjacent narrow faces must be free of pith and/or heartwood. The unique cellular structure of Southern Pine permits deep and uniform penetration of preservatives, rendering the wood useless as a food source for fungi, termites and micro-organisms. I am finding lots of info about how HT (heat treated lumber) is required for packaging, pallets etc to prevent the spread of some WDO across the world but can not find anything concrete on whether or not it is suitable for a deck. This defect is exacerbated in the presence of Spi-1 haplo-insufficiency (Spi1+/- SpiB-/-). These Standards are very prescriptive in the requirements for Quality Control procedures, preservative penetration, analysis methods for retention, in-plant equipment, records and third-party agency responsibilities and requirements. There is no standard for appearance grading and select or premium could be #1 or #2 structural grade, it just increases the cost to the consumer for better wood. Gives the trademark or number of the mill of origin. The chemical treatment makes the wood resists insects, mold, mildew, and rot but not moisture-proof. Composite of No.3 strength and No.1 nailing edge characteristics for a better nailing surface. r This process is required through the plants Internal Quality Control (IQC) for all treated lumber products to be represented as meeting an applicable standard. #1 will have less knots and is typically spec'd for joists and rafters. #2: When appearance is of moderate concern, this grade will contain moderate size knots and can have a considerable amount of wane. Box 10915 Pensacola, Fl. 2 Dimension Lumber characteristics. This grade is available in dimensions of 24, 26, 28, 210, and 212 and in lengths from 8 through 24. Kiln-dried wood is crackproof but pressure-treated wood is not guaranteed against warping, shrinkage, or splitting. It has a grain slope of 1 in 12, may have seasoning checks, and tight, well-spaced knots up to 2-1/4 on a 28. Suitable for economical use as sheathing or lathing. 2, and No. Our Services | Lumber Services | The grade of lumber is noted SS, #1, #2, #3, or STUD and the price reflects the quality. Each charge sheet is reviewed to verify that all IQC requirements have been met and properly documented. {l@n7gM. Free of pitch pockets, pitch streaks and medium pitch on one wide face, but otherwise conforms to No.1 Dense or No.1 Dimension Lumber.
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