is spib no 2 prime pressure treated

Composite of No.3 strength and No.1 nailing edge characteristics for a better nailing surface. In most cases, the required depth of penetration is 2.5 or 85% of the available sapwood. SPIB is subject to continual review by ALSC to ensure that the laboratory and agency records remain in compliance. Ill suffer with pt. Follow the link here to complete our Treated Division and Laboratory Customer Satisfaction Survey. The resulting hole will be filled with a treated wood plug to prevent easy access by insects or decay fungi. All Scaffold Plank design values are calculated using ASTM Standards D245 and D2555. 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. 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. Construction grade commonly refers to #1 grade lumber. Pressure treated lumber commonly is end-tagged with an information label before leaving the plant. Suitable for stud uses including use in load-bearing walls. Similar in appearance to No.1 Dimension Lumber. The grades are stamped prior to the wood being treated, so are the same for both treated and untreated. Treated wood will shrink as it dries and expand when wet and may acquire surface checks and cracks over time. Once on the drip pad, the material will stay until it is dry enough to be moved into the plants treated inventory. Here is a list and description of some of them. Characteristics are limited to provide good strength and excellent serviceability. The type of preservatives, retention level, and year it was treated are identified on the label. it's primarily 2x planks. This defect is exacerbated in the presence of Spi-1 haplo-insufficiency (Spi1+/- SpiB-/-). Exciting stuffyou wont want to miss that! Lumber that is 2 or less in thickness (24, 26, 5/4 decking, etc.) Wood is a sustainable product, making it . Treated wood is made from strong evergreen species making it suitable for most building projects. Recommended for general construction uses. It must specifically be labeled ground contact. 3 and Stud 12" wide 2050 1900 1750 1350 1250 1150 1150 975 900 575 1100 1050 900 725 675 600 575 550 525 325 175 175 175 175 175 175 175 175 . The wood grain has a 1 in 8 slope, and there may be bark edge or wane visible. The wood is 43% clear for appearance grading. 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. A final vacuum removes the excess preservative from the woods surface before the charge is removed from the cylinder and placed on the drip pad. The clear appearance makes it a choice for trim, furniture, and cabinetry. Most lumber in my area is listed as Prime or Premium depending on the box store and is stamped #2 or #2 & BTR. Wood Packaging Material (WPM). All lumber must identify the association or agency accredited with overseeing the grading MLB is the Maritime Lumber Bureau. Some on this forum think that is a waste of time, but I think it extends the life of the lumber. Good-quality sheathing, fencing, shelving and other general purpose uses. {l@n7gM. 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. Home Derpo person said that #2 is ground contact and stronger. r The wood then is dried naturally or in a kiln to evaporate the water out, leaving the preservatives behind. Recommended for general construction uses. Pressure treatment of lumber has come a long way in the past 100 years. Since 1960, lumber in North America has been graded at lumber mills by trained inspectors for structural strength and quality control. SYP holds almost 85% of the U.S. pressure treated market. I grabbed an exerpt here and there and put it all together, for I was on a lot of different sites and suppliers. Selecting the correct type of treated wood for a project often depends on how and where it will be used. High quality, limited in characteristics that affect strength or stiffness. Bruce, I found more info on the heat treated wood. Longleaf, shortleaf, loblolly, and slash are some of the native southeastern pines that are classified as SYP. More knots than Premium grade If the wood is #1, it is stamped #1. s SPIB is subject to continual review by IAS to ensure that the laboratory and agency records remain in compliance. Im building a deck and am getting conflicting info on the difference between #1 and #2 PT. 32524-0915 Application of the product requires pressure treatment by an approved treating process and preservative for marine usage. Suitable for economical use as sheathing or lathing. Got the ledger #2 GC from the lumber yard. THE TREATING PROCESS, QUALITY AND IQC RESPONSIBILITIES. No matter what it is called or tagged, it should bear a stamp on the wood surface identifying it as SS, #1, # 2, or #3. The process is similar for treating milled lumber, plywood, posts, or utility poles against rot and insects. (KD-HT means the wood was also heat treated to kill pests, a requirement for imported lumber.) Application of the product requires pressure treatment by an approved treating process and preservative for. I guess it is just a regional thing. Suitable for use as individual laminations for structural glued laminated timbers. 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. The size, location, and the number of knots and other defects, and the slope of the wood grain affect the structural strength of lumber. The treatment doesnt penetrate deeply into the wood due to the impermeable nature of the wood cells. hbbd``b`i@i`}{" s@BHpE ^ !RHp@00 30 . endstream endobj startxref 0 %%EOF 162 0 obj <>stream To limit the entry and spread of quarantine pest through international trade, the International Plant Protection Convention adopted the International Standards for Phytosanitary Measures Guidelines for Regulating Wood Packaging Material in International Trade (ISPM 15). 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. Green unseasoned lumber fresh from the mill is labeled either air-dried (AD) or surface-green (S-GRN). 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. Locations Products. There are many questions about the different treated wood products in our market today. My electrical answers are based on 2017 NEC, you may have local amendments. Pressure treated wood has many outdoor uses and even is used in some indoor locations, especially where moisture may be a concern. 7nX"a*C[3Dj8[n7;c}W6ynCK2AC?jP0zD'm)a7"tq~eikT):ozU*9Ry"EEy*x|r+Q/!P2GD[0iNvXv4HS-ljs2$r%M$-gi"H"3J2!&IjHnVo " 3Xi^!gc18,WxFWF2O0eMu ~e{lcoJxK]a|rJaxWFX1' g%|M'kL&^JgY9#%T;RnrIwdmdx:rNY%KDn1s,eD8WNjSgvb5OPYn0? .y Z,4zl,RrIl@%<6dWoLMf6Y6J6agH Pressure-treated wood can dry in about 1 month, whereas fresh wood provides an environment where fungi and bacteria produce rot and insects infest. s &_ePM&dWCh maple, oak, birch, etc. It has a unique broad grain cellular structure that allows for uniform and deep penetration of chemical preservatives. CCA is comprised of arsenic, chromium and copper. This process is required through the plants Internal Quality Control (IQC) for all treated lumber products to be represented as meeting an applicable standard. SPIB is subject to continual review by IAS to ensure that the laboratory and agency records remain in compliance. Although there may appear to be many differences in what options to use for your next project, there may be more similarities than you know. Stud is a fifth designation, meaning its good for a load-bearing wall. Larger sizes conform to Dense Structural 72 Structural Lumber except for dense grain requirement. t|]UE)@Whi`_@z>'}8/p}8c Ground contact level treatment (.15 pcf) has more than double the preservative of above ground level treated wood (.07 pcf) Lighter, more natural wood appearance for improved staining qualities. #2 Prime Grade has a maximum hole size of ". 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. Gives the trademark or number of the mill of origin. The species and grade, however, affect the spacing between supports with #1 often rated for greater spans. Mobile, AL. As I understand it, the grade refers to the number of knots in a given length. An indicator is used to identify the untreatable, heartwood sections of the 20-core sample (Sapwood is the outer portion of the log; heartwood is the innermost portion of the log and is rarely capable of accepting preservative). However, treated lumber may be kiln-dried or wet and will shrink, cup, and warp as it dries. 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. it also has several good links. No.1 Prime No.2 Prime H ighqu al ty, m ed nc r sfo . A quick depressurization cycle then removes any excess from the wood before it is removed from the treatment cylinder. #2 Prime grade southern yellow pine. 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. Both can be used for load-bearing purposes or other outdoor applications. Its appearance ranking requires it to be 75% free of knots or defects. Termawood is an unique technology that uses heat treatment for timber processing to significantly improve various characteristics of wood. 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. Good appearance, but graded primarily for strength and serviceability. All rights reserved. At the end of the pressurized period, the solution is pumped out and stored for use on the next batch. I did some research and found that they only staple the PT label to the end of the boards in many cases. 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 are many other uses for pt lumber, including docks, boathouses, sheds, boardwalks, play structures, gazebos, and the list goes on. 2 lumber, which provides good strength at a reasonable price. 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 Those stacks also include some No. Research shows that . The type and dimension influence the strength of the timber. Denotes the woods species or a group of species with similar strengths. So, weve covered a lot of ground, but this is not the end, not by a long shot! SPIB is accredited through IAS and maintains ISO certification as both an inspection agency (ISO 17020) and a Laboratory (ISO 17025). The stamps on lumber do not always include everything, the PT data is usually just on one of those plastic tags stapled on the end of the board which gets cut off or removed. Species and Sizes Of Pressure Treated Wood, Different Kinds of Softwoods That Are Pressure Treated, Tips for Working with Pressure Treated Wood, Types of Pressure Treated Lumber and Where to Use Them, Sill & bottom plates, damp locations, basement framing, bathrooms, flooring, baseboards, Exterior Above Ground, Coated with Rapid Runoff, Exterior Above Ground, Uncoated or Poor Runoff, Cedar shakes, exterior stairs, joists, beams, decking, railings and fence boards/pickets, any wood within 6 of soil & vegetation, Fence, deck & structural posts, ledgers, retaining walls, garden boxes, any wood within 6 of soil, vegetation, or freshwater, or poor air circulation, As with UC4A plus posts set into the ground, retaining walls, wood foundations & supports, freshwater contact, saltwater spray, garden & utility posts, Pilings or wood in direct installation in soil, gravel, concrete, freshwater, or extreme weather exposure, Contact & immersion in cold ocean waters north of Long Island & San Francisco, docks, piers, wharves, shore walls, boardwalks, & buildings, Contact & immersion in warmer ocean waters south of San Francisco and Long Island, and similar to UC5A, Contact & immersion in warm Gulf Coast waters & south of Georgia, and similar to UC5A, Interior construction, no ground or moisture contact, fire partition walls, kitchens, hallway & stairwell framing, Exterior construction, exposure to weather but not ground contact, porches, exterior stairs, window treatments, Tight and well-spaced, and no larger than 2-3/4 on a 28, Well-spaced and no larger than 3-1/2 on a 28, 1/4 the thickness and 1/4 the width full length, or not greater than 1/2 the thickness or 1/3 the width for 1/4 of the length, 1/3 the thickness and 1/3 the width full length, or not greater than 2/3 the thickness or 1/2 the width for 1/4 of the length, Checks separation across or through growth rings due to seasoning, Unlimited surface seasoning checks with through checks limited to splits, Skips surfaces that were missed or failed to clean, Maximum of 5% of the plank or 2 or less in length, Shake lengthwise separation through or between growth rings, Limited as splits if through or 2 long on the surface only, Limited as splits at ends if through or 2 long if well separated, or maximum of 3 or 1/4 the length if surface only, Warp bow, crook, cup, twist, or any combination, Sapwood stained or firm heart or red heart stain, No limit to sapwood stained or firm heart stain or red heart. My HD carries some ground contact PT. As a result, we have more grades available to our customers now than at any other time in the history of our company. It is a very strong and stiff softwood, and dense too. Allows well-spaced knots of any quality. A very good product to, Highest recognized grade of Finish. She said that some of the new PT looks so much like untreated they have to add a color enhancer to it. 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 charge is considered conforming if each component meets the minimum required retention AND the total, combined minimum retention is met. These values are modified using procedures shown in "Calculating Apparent Reliability of Wood Scaffold Planks," as published by the Journal on Structural Safety, 2 (1984) 47-57, and updated in 1993. The current process is mostly computerized and mechanized using modern technology. I hope you have a better understanding of what pressure treatment means and which grade and type is best for your project. The chemical treatment makes the wood resists insects, mold, mildew, and rot but not moisture-proof. Lumber may have one hole every 3 and any splits must not be bigger than the plank is wide. SPIB is accredited through IAS and maintains ISO certification as both an inspection agency (ISO 17020) and a Laboratory (ISO 17025). 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. Machine Stress Rated (MSR) lumber is evaluated by mechanical stress rating equipment. Tell us how we're doing! High utility value where appearance is. We've downsized and im already overimproved. Southern Pines ease of treatability has made it the preferred species when pressure treatment with wood preservatives is required. Recommended for general framing purposes. Pressure treated lumber is divided into different types based on the retention level or amount of preservative retained in the wood after treatment. Combination for B&B and C grades; satisfies requirements for. It could be HT and then PTd later? ), how wood is used also comes down to whether or not it's pressure treated. Wood packaging material made of unprocessed raw wood is recognized as a pathway for the introduction and spread of pests. It's distinctive wood grain appearance is great for decorative finishing. An internet search says it has to do with less knots and quality, and that #1 is of higher quality. #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 The pressure-treatment process Timber components, machined to their finished dimensions and at an appropriate moisture content, are impregnated with preservatives in large pressure vessels, where the combination of vacuum and high-pressure drives the preservative into the wood. 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 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. Pressure treated plywood is also available in thicknesses from 1/4 through 3/4. Grade based on No.1 Dimension Lumber except wane and other characteristics that affect appearance are limited. It is most commonly used for sheathing and applications where a fine finish is not required. A joist made of Douglas fir, for instance, will cover a greater span than a hemlock joist of the same size and grade. In appearance grade, the planks are 66% clear wood. 2023 Southern Pine Inspection Bureau | All Rights Reserved | SitemapP.O. The grade mark can include "1W" or "2W" if visually graded to the wane requirements for No.1 or No.2 dimension lumber, respectively. The treating process includes an initial vacuum to remove the excess moisture and air to aid in the absorption process. Admits pieces below a No.3 grade which can be used without waste, or which contain less than 25% waste by cutting. See Table 2 or SPIB Grading Rules for design values. Many DIYers and even some professionals arent familiar with the different types of pressure treated wood and their uses, or that the information is on the end-tag stapled to the board. Premium and select classifications and the percentage of clear wood are appearance grades used by some mills and retailers. This Old House general contractor Tom Silva usually buys stacks of No. IMO when buying PT for above ground use, quality and appearance is what counts. See SPIB Special Product Rules for design values, Appearance is same as B&B Finish for thicknesses of 4" and less. Pressure-Treated Pine meets the highest grading standards for strength and appearance. Its moisture content of 19 percent or more makes it inexpensive, but it can move unpredictably as it shrinks and dries. For complete information about types of preservatives, the latest industry standards, product identification and specification guidelines, refer to SFPAs booklet,Pressure-Treated Southern Pine (download in Publications). The certification identifies the grade rules used to grade the lumber for example, ALSC is the American Lumber Standard Committee and NLGA is the National Lumber Grades Authority. 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. The grade-mark must contain the first four items listed below; the fifth item is optional. Dimensional wood from all grades is pressure treated for different uses. But using bigger joists of a cheaper species might save you money without loss of strength. I don't think HD carries it. The table below identifies the main differences. For appearance, it must be 29% clear of defects. Maximum spans were calculated using design . 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. hb```"/VI ealR]2L 7] u~m>^;+g=ll&Cv)!N&%5g~IK1 The longer the wood is in the pressure chamber, the greater the content of chemical preservatives forced into and retained in the wood. Fax: (850) 434-1290. o>>QS-RSnwO4piq4Szh+jkS3NQn(:;^unn^}Q8ws{7sFS The ranking goes from Select Structural (highest strength, best appearance) to No. Unseasoned or green lumber has a moisture content of 19% or greater and subject to shrinkage and warping as it dries. Number 2 grade lumber often has more knots and blemishes than #1 grade but may be clear enough on one face to be deemed select or premium. Email: cspsales@canfor.com. Recommended where high strength, stiffness and good appearance are desired. Thats why every stick of lumber coming out of a sawmill is appraised by trained inspectors and given a grade stamp. As the numbers go up, quality and price go down. 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$(MJ \N The lumber is commonly used for all facets of structural construction, plus furniture, shelving, decking, railings, siding, post, and other purposes where its visible appeal can be appreciated. The preservatives dont affect the load-bearing abilities, just provide protection against insect, mold, mildew, and rot damage. The stapled on label will have w/CE to indicate with color enhancement, she is correct. Lumber that is KD (kiln-dried) or S-DRY (surface-dry) has a moisture content that is lower, between 16% and 19%. Check sources of supply for available grades and sizes. H\n0l/$x\$-"-! spib no. 32524-0915 SYP Lumber Sales. The grade of lumber is noted SS, #1, #2, #3, or STUD and the price reflects the quality. Some lumber is also treated for fire protection and used throughout different areas of residential, commercial, and industrial construction. However, the tight grain also makes it less receptive to pressure treatment. This Old House general contractor Tom Silva usually buys stacks of No. The lumber is inspected for knots, splits, and other defects that can weaken the woods structural strength. THIRD-PARTY AGENCY AUDIT and SAMPLING PROCEDURES. It is stronger than #2 or #3 grade lumber. Premium is usually #1 or #2 grade lumber. Both DIYers and building professionals will like these garden and outdoor living ideas and plans. Pressure treated wood for ground contact commonly has twice the chemical retention level as above ground rated lumber. No.2 Non-Dense No. 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. This information will then be combined with previous plant data to determine the plant performance status, as mentioned above. Some wood goes through a machine that incises small cuts into the surfaces for deeper chemical protection. These factors, plus the moisture content at the time of milling, determine the grade assigned. The main tree species used in the manufacture of pressure treated lumber are softwoods that regionally predominate in the mill area. Many pieces included in this grade would qualify as No.2 except for a single limiting characteristic. Premier structural grades. JavaScript is disabled. Tough to find decent boards. ACQ is another environmentally safe preservative composed of soluble copper and either quaternary ammonium alkyl or substitute compounds. It's usually stapled to the wood and isn't a requirement to be on the actual stamp. Gloves protect against slivers and water-soluble chemicals; it is also advisable to thoroughly wash hands before eating or drinking. 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. 6^,fniSgdc24.L7` b. In appearance, it is at least 57% clear of defects. MCA is an environmentally friendly water-based preservative considered safe for humans and animals and is an alternative to CCA. "Stud" is a fifth designation, meaning it's good for a load-bearing wall. Southern Pine's ease of treatability has made it the preferred species when pressure treatment with wood preservatives is required. Outside building projects and even some damp areas inside require wood that is resistant to moisture damage. Im not going to struggle with huge bows and twisting. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Regardless of whether the preservative system is approved through the AWPA or ICC-ES process, the inspection and analytical standards used to monitor the respective quality attributes are delineated in the AWPA Book of Standards.

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