Where applicable, the International Building Code requires that all treated wood products be treated and labeled as meeting specific AWPA Standards and bear the mark of an ALSC-accredited agency OR equivalent. Fax: (850) 434-1290. spib no. Some types of timber have natural abilities while others need a boost. Pressure treatment is an affordable alternative to expensive naturally rot-resistant lumber. Dont know how PT Pine looks. Good-quality sheathing, fencing, shelving and other general purpose uses. Most is not. Non-stress rated, but economical for general utility purposes such as bracing, blocking, bulkheading, etc. You Save $3.39 with Mail-In Rebate. ), how wood is used also comes down to whether or not it's pressure treated. It has nothing to do with the wood being pressure treated (PT) at all. SPIB is subject to continual review by ALSC to ensure that the laboratory and agency records remain in compliance. One even identifies its pressure treated pine fence boards as D & better so its appearance has small pin knots and some other blemishes. #1 will have less knots and is typically spec'd for joists and rafters. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Similar in appearance to No.2 Dimension Lumber. 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. Pro Note: All copper-based wood preservative solutions will corrode unprotected iron and steel brackets and fasteners. Treatment with preservatives protects wood that is exposed to the elements, in contact with the ground or subjected to high humidity. 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. Before a given charge can actually go into the plants treated inventory to be ready for shipment, it must first be evaluated for penetration. Green unseasoned lumber fresh from the mill is labeled either air-dried (AD) or surface-green (S-GRN). Treating cylinders vary in size and length and a single charge of lumber can contain anywhere from 8,000 to 25,000 board feet of 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. Overall plant evaluation is done by means of separating and inspecting all of the different Production Categories to help identify very specific areas of concern, if any exist. Generally, the charge is accepted if at least 80% of the cores (16 of 20) meet the minimum depth of penetration. This website is presented by SFPA members, including: 2023 Southern Forest Products Association. Lumber that is 2 or less in thickness (24, 26, 5/4 decking, etc.) No. The lumber is inspected for knots, splits, and other defects that can weaken the woods structural strength. #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 These requirements are initially checked by the producing treating plant, but are ultimately verified by independent, third-party agencies that ensure plants produce treated wood products in accordance with industry standards. In appearance grade, the planks are 66% clear wood. However, some KD-HT wood at your local lumber yard might have a tag on the end of the lumber that specifies PT. Protecting wood against rot and insects has been done for centuries. Largest hole permitted is 1/16". This information will then be combined with previous plant data to determine the plant performance status, as mentioned above. PDF Strength Treatability Beauty - Teague Lumber 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. Framing lumber, unlike money, does grow on trees, so theres always the chance it will have some natural defect, such as a large knot or a long split, that can reduce its overall strength. 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. wo*kS` 8r 5f)J `A%pWIu `lt=K!a4'(Xg^dU|$a!/,.-`0ir }dF\Nguyi12(8+DU Zty 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. Pressure treated lumber has been treated with a chemical solution to protect it from insects, mold, mildew, and rot. Construction grade commonly refers to #1 grade lumber. 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. Follow along as we decode the stamp and show you how to get the most lumber for your money. Advances in preservative treatments, environmental management and sustainable forestry practices make treated wood an ecologically sound building material. Abbreviations for framing-grade softwoods, from strongest to weakest, Doug Fir, D Fir- L: Douglas fir (L=western larch). MSR lumber is distinguished from visually stress graded lumber in that each piece is non-destructively tested. Walking into a lumberyard or store can be a daunting experience. The wood is commonly used for light construction or framing where it isnt visible, or for bracing, packaging, and shipping purposes. Outside building projects and even some damp areas inside require wood that is resistant to moisture damage. The ALSC also accredits third-party agencies, like SPIB, to inspect treating plants that produce treated lumber products with preservative systems listed in the American Wood Protection Association (AWPA) Book of Standards (BOS). Combination for B&B and C grades; satisfies requirements for. Then I worked to drink. When pressure treated it is resistant to decay and termites. SYP Dimension Lumber Specifications | Canfor 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. Most of this new treated lumber looks untreated as compared to the old green stuff, I did learn that they add color to some of it to try and make it look more like treated. Characteristics are limited to provide good strength and excellent serviceability. SPIB is committed to assisting our customers meet their treatment goals in the most cost-effective means possible. It has anti fungal properties along with a host of other positive features. This defect is exacerbated in the presence of Spi-1 haplo-insufficiency (Spi1+/- SpiB-/-). Any lumber experts out there that can confirm KD HT is ok for a new deck? Behind the Mark: A Look at the SPIB Treated Wood Inspection Process SPIB is a not-for-profit company that serves as the rules-writing agency for the Standard Grade Rules in Southern pine lumber. 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. Suitable for use as individual laminations for structural glued laminated timbers. 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. #1 grade can have more wane (or bark) My HD carries some ground contact PT. 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. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. The tag identifies its proper use Above Ground, Ground Contact, etc. However, enough gets into the wood to provide a shell of protection that cant be matched with a brush. 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. One wide face and both adjacent narrow faces must be free of pith and/or heartwood. Denotes the woods species or a group of species with similar strengths. Lumber stamped #2 grade is commonly used for framing, lintels, rafters, trusses, joists, beams, and fencing. It appears as a new technology from Canada. Now I must drink to work. Recommended for uses where high strength, stiffness and good r 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. A Production Category is defined as a given preservative, specie and retention combination. Recommended for same purposes as Construction grade. 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. Locations Products. No.1 Prime No.2 Prime Size inches ( actu l) Spacing inches on center 12.0 16.0 24.0 12.0 16.0 24.0 12.0 24.0 16.0 24.0 TREATED FLOOR /D . Im not going to struggle with huge bows and twisting. 2 x 6 x 16' Prime Pressure Treated #2 Lumber *BUY IN BULK* AND SAVE Kiln-dried wood is crackproof but pressure-treated wood is not guaranteed against warping, shrinkage, or splitting. The table below identifies the types and their use based on the level of retention of preservatives. The type identifies the amount of chemical retention which in turn determines how or where to best use the lumber. 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. 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. CCA Pressure-Treated Wood Wood-constructed homes, roof shakes and shingles, exterior decks, and children's play equipment that were built before 2004 and not made of cedar or redwood were likely constructed using wood that was pressure-treated with CCA, or chromated copper arsenate. Office: (850) 434-2611 | Toll Free: (800) 995-7742 #1 vs #2 Pressure Treated | DIY Home Improvement Forum As you look through our website, you will recognize the many different grades of lumber we stock. S;t HmM~[3`~Dl1Cj^x{}g.-GWlEu Yl[k4!42#>#13"J! 1pJ`w&Im0m/=BA!^/[xN XX=xEzGjB Excellent for painting or natural finish where requirements are less exacting. The size, location, and the number of knots and other defects, and the slope of the wood grain affect the structural strength of lumber. However, the tight grain also makes it less receptive to pressure treatment. All structural lumber used in the U.S. and Canada requires a stamp identifying it as grade SS, #1, #2, or #3. 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. Grade based on No.1 Dimension Lumber except wane and other characteristics that affect appearance are limited. 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. Premier structural grades. All rights reserved. Just to second what rjniles just said, the HD guy couldn't be more wrong (imagine that). Application of the product requires pressure treatment by an approved treating process and preservative for marine usage. Both can be used for load-bearing purposes or other outdoor applications. However, it shouldnt be used where it comes in contact with food or animal feed. The accredited inspection agency, manufacturer, and plant are also commonly on the label but may be available in the bar code. Tags: None The Duke Different chemical solutions are used to create treated lumber. Overly dry wood often needs a pilot hole before fastening to prevent splitting. End-glued, face-glued, and edge-glued Southern Pine in glued assemblies, including stress-rated grades of finger-jointed 2" Dimension Lumber. However, treated lumber may be kiln-dried or wet and will shrink, cup, and warp as it dries. Thanks to all, ill never outlive ground contact or not, but maybe for the kids ill go with the lumber yard ground contact since they did the quote and its not much more dough. Modern science has developed preservative treatments that are odorless and colorless, and leave the wood paintable and dry to the touch. Its appearance ranking requires it to be 75% free of knots or defects. The treating process includes an initial vacuum to remove the excess moisture and air to aid in the absorption process. Mobile, AL. Selecting the correct type of treated wood for a project often depends on how and where it will be used. it's primarily 2x planks. The preservatives provide protection against rot, insects, mold, and fungi, so the wood lasts longer. #2 Prime Grade has a maximum hole size of ". The appearance doesnt affect the structural grade, it just is superficially more appealing. Recommended where high strength, stiffness and good appearance are desired. The sampling procedures are the same as required by IQC, but re-inspection of a given charge will likely involve only a portion of the total charge. Structurally, an SPF #2 28 can be used to span distances of 14-11. Generally clear, although a. The HD guy is wrong. 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. 32524-0915 | Office: (850) 434-2611 | Fax: (850) 434-1290. hb```"/VI ealR]2L 7] u~m>^;+g=ll&Cv)!N&%5g~IK1 Research shows that Southern Pine can be expected to last for many decades when properly treated and installed for its intended use. 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. 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). Allows well-spaced knots of any quality. Borates are sodium salts used in water-based pressure treatment solutions. As the wood dries, the preservative is left behind to protect against insects, mold, mildew, fungal growth, and rot. Wood Packaging Material (WPM). Check sources of supply for available grades and sizes. Economical, serviceable grade for natural or painted finish. My electrical answers are based on 2017 NEC, you may have local amendments. Each charge is tallied as to the specific Production Category that will be used to determine the level of sampling to be performed in the plants treated wood inventory. Bruce, I found more info on the heat treated wood. They dont discolor the wood and protect against insects, molds, mildew, and fungi. s 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. No.1 Prime No.2 Prime H ighqu al ty, m ed nc r sfo . The main tree species used in the manufacture of pressure treated lumber are softwoods that regionally predominate in the mill area. The longer the wood is in the pressure chamber, the greater the content of chemical preservatives forced into and retained in the wood. 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. Many pieces included in this grade would qualify as No.2 except for a single limiting characteristic. OK then thanks. &_ePM&dWCh *Load duration factors greater than 1.6 shall not apply to structural members pressure-treated with water-borne . 2, and No. Douglas fir has a tight close grain cell structure making it stronger and less prone to warping and twisting than pine. Pressure treated wood has many outdoor uses and even is used in some indoor locations, especially where moisture may be a concern. Construction grade is #1 and Standard is #2. Top-quality lumber 2x4 through 2x12 are either #2 Prime grade, #2 & Better/Appearance grade or #1 grade. www.strongtie.com/products/ptwoodfaqs.html, FAQ: Pressure-Treated Wood | Simpson Strong-Tie. This specific set of data for each charge is called a charge report. High quality with good appearance characteristics. 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. 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. Those and other treatments are used for industrial purposes instead. Details Made from quality Southern Pine lumber Available for . Both DIYers and building professionals will like these garden and outdoor living ideas and plans. Help a newbie identify treated wood? | LumberJocks Woodworking Forum For outdoor seating. Good, serviceable sheathing; usable for many economical applications without waste. See SPIB Special Product Rules for design values, Appearance is same as B&B Finish for thicknesses of 4" and less. Select Structural (SS) is the highest grade based on strength and durability. 1s and Selects, to boot. As I understand it, the grade refers to the number of knots in a given length. How to Read the Stamp - This Old House 6^,fniSgdc24.L7` b. Dimension stability improves 12-17 times compared to untreated wood The preservatives dont affect the load-bearing abilities, just provide protection against insect, mold, mildew, and rot damage. Here is a list and description of some of them. The solution protects against insects, mold, mildew, fungus, and rot, and turns the wood a light brown hue.
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