How Long Will Non Pressure Treated Wood Last Outside

Less durable in soil - Cedar doesn’t hold up as well as pressure-treated pine in soil, so it is rarely used for fence posts. So if its a frost wall run tarpaper to the grade height outside, 2x4 wall insulate, make sure you have vapour barrier on the bottom of the plate you do not need pressure treated or sill gasket, the sill gasket will do nothing. Cedar, Cypress, Redwood, Bo Dark, sp. A common habit that horses develop to ease their boredom and frustration is chewing on their wood stalls or other wood in their enclosures. Building codes usually require any wood that contacts masonry must be. 00 per square foot. This is an example of a foundation frame for a 12×16 shed. •UC3B Above Ground Exposed — Treated wood materials used in exterior construction that do not come into contact with the ground. Take care not to spray vegetation. These are four pieces of wood that were part of my extended outdoor wood sealer test. To start, pressure-treated wood is softwood lumber. Wood Fence Posts and Poles, Wood Fencing. In the East and South Southern Yellow Pine is used and in the Mid-West and North Douglas Fir is primarily used although several species of fir also are used. Cedar Fences. Treated lumber should be stacked and stored in the same manner as untreated wood. Life of treated wood Most treatment companies claim that when treated, most lumber will last more than 20 years. Pressure treated wood should be allowed to age for 6 months to allow complete out gassing. It's available in two neutral colors (slate gray and silver gray), and the finish is mildew resistant and super long-lasting. joist spacing for. Hardscaping 101: How to Care for Wood Outdoor Furniture Janet Hall April 13, 2017 Soon it will be time to drag the outdoor furniture from hibernation or, if you live in sunnier climes, add it to your spring cleaning list to get ready for dining al fresco. All treatments are about the same, pressure treated just gets it deeper into the wood. there is a 6’x6′ top area at the entrance and the rise is about 9-10 ft vertical from the ground. Tips on building raised garden beds including guidance on the best sizes, types of wood, and what to fill them with to grow vegetables. On January 1, 2004 the wood industry throughout North America has ceased to produce pressure treated wood treated with CCA (chrome, copper and arsenic) for residential use, replacing this chemical with what is generically called 'non-arsenic' treatments, primarily ACQ and Copper Azole (CA), both of which contains no arsenic but much more copper. We recommend you wait 3+ months to stain new wood surfaces to allow the wood to weather, creating an ideal porous surface that will hold the stain better. But not all PT is created equal. Preservative–treated wood is most com- monly found in fences, decks, shingles, utility poles, marine piles and railway ties. Sanding outdoor wood isn’t something most people do before they finish a new deck, precisely because it seems like so much work. This is your guide to its manufacture, specification and use. Cheap 2x6, 2x8, 2x10, 2x12, 4x4, & 6x6 pressure treated yellow pine in stock. This change of wood color comes from Mother Nature (sun, rain, wind…). We were thinking of using scaffolding boards (about €5 per 8ft length here in West Kerry, Ireland) but was advised by a guy making polytunnels to use pressure treated 9x2s (€20 per 16ft lengths). Treating it will not necessarily extend its lifespan. Pressure-treated lumber ($1. The tompson water seal is pretty good at sealing, but can get slippery when wet. Wait for 24 to 48 hours before applying any oil based products over the wood preservative. While the wood industry phased out production of this type of wood in 2003, existing structures are still a. Thompson is definitely one of the more respected names in this industry, so I have high hopes for this product. Looking from that perspective they. Round pilings are commonly used for a huge variety of construction projects including:. How do I know if my outdoor wood is pressure treated with CCA? Most lumber pressure treated with CCA has a characteristic green tinge. The alternating cycles of expanding and shrinking will cause the wood to warp, cup, crack and gray. Share on other sites. This family-owned and operated business has made LifeTime® available commercially in Canada for 20 years, and has eventually become available across the world. Not only can you can stain treated wood, you should stain treated wood. It is treated with a copper-based preservative to mitigate the chances of rot and insect damage. The fellow who wrote the plans recommended a Internal Wood Stabilizer and I just never got around to ordering it, but it is supposed to harden the wood. Pressure treated lumber products, such as YellaWood ® brand products, are treated in a pressurized cylinder. But — it doesn't make wood water resistant. Start with the 2x4's. It provides a termite and rot resistant envelope treatment that can last for 30 years or more. Although slightly more expensive than pressure-treated wood, composite decking is another good choice. Any person who is found burning treated wood is guilty of a misdemeanor and is liable for severe civil penalties and/or fines. Composite Decking Enhance your outdoor living space with the ultimate in composite decking. This treatment will help waterproof it… and linseed oil is one of the few waterproofing products that is 100% acceptable in organic gardening circles. This outdoor wood selection guide warns against even more recent non-arsenic pressure treated wood, so do your research and use your own judgement before proceeding. 20 years lucky 15 maximum for treated wood, now when you. Keep your wood deck looking its best with the right cleaners, sealers and stains. Finish your deck with deck accessories such as post caps, stair stringers, and steps. However, I have heard a lot of bad publicity about pressure-treated lumber. I have done my research on this topic and I am fine with using pressure treated lumber for my vegetable garden. A pressure-treated wood deck will last 15 to 20 years or longer with regular maintenance. "Ground rated" treated wood contains a higher concentration of preservative chemicals than normal wood and will offer increased protection from decay while buried in soil. Redwood and cedar heartwoods have a natural resistance to termites and decay; pine is pressure-treated with a pesticide to give it insect- and decay-blocking power. We choose solid laminated, pressure-treated pine wood. Air-drying for several weeks will help even out the moisture-content differences between the pieces of wood and, on average will lead to a more consistent moisture content at installation. Preservative–treated wood is most com- monly found in fences, decks, shingles, utility poles, marine piles and railway ties. Treated wood can last virtually as long as you want it to, given the correct away from CCA pressure-treated wood by December 31, 2003, in favour of new Non-incised CCA-treated wood will have a shorter service life than incised CCA-treated wood, but the. Outdoor Screws, Part 1: There are some special considerations for projects that will spend the lives out in the weather. Make sure the wood isn't in. - - Protection of wood and wood based products from decay shall be provided in the following locations by the use of naturally durable wood or wood that is preservative-treated in accordance with AWPA U1 for the species, product, preservative and end use. One more thing that you have to note is that treated wood, spruce and cedar, may live up to 20 years and the same might go up to 40 years in case of cedar. If it is absorbed into the wood, it would be advisable to re-coat it. Whether it is used to create raised beds, the edges of paths or a frame for protective netting, wood is the natural choice for many gardeners. Re-manufactured heat treated lumber- There are cases when a lumber supplier receives a request for a particular dimension of heat treated lumber that they do not carry or have in stock. Composite decking has gained popularity over the last few years, due to the durability and strength. The treatment process forces a waterborne preservative deep into the cellular structure of the wood providing long-term protection against rot, fungal decay and termite attack. Learning how to stain pressure treated wood can extend the life and improve the appearance of decks, fencing, picnic tables, retaining walls and other exterior wood projects. Heat Treated Pallets and ISPM15 Heat Treated Timber Pallets UK from our extensive heat treated pallets selection and based centrally for UK distribution in Manchester. If you’re looking to make a lengthy investment, consider the fact that cedar fences will stand, with no maintenance, for up to 25 years. To prevent this situation, either keep your untreated lum-ber dry or use treated wood if you suspect it will get wet in service. Obviously, a good wood finish is important, but woodscrews can also suffer in the weather. And an outdoor project's not finished until it's been stained, sealed or painted. Pressure-treated wood resists water and is found in outside decks, ocean or freshwater piers, park benches, or any outdoor structure which has constant exposure to the elements. Pressure treated is great when it won't be visible. The depth of the hole should be 1/3-1/2 the post height above ground (i. CCA pressure treated posts are the standard posts supplied from American Pole & Timber. Several species of wood can be treated, but a regionally available species usually predominates in any particular locale. Use the graph below to figure out your maximum span, but generally speaking, you can easily get to a 16' to 20' span between supports. The person who takes big risks for big rewards often has a hard time turning cautious. Facts About Pressure Treated Lumber Some frequently asked questions about pressure treated lumber: What is pressure treated lumber? Pressure treated lumber products, such as YellaWood ® brand products, are treated in a pressurized cylinder. uk/news/4733/For-Food-Factory-Wastewater-The-CAP-Fits-For-Landia-Pumps-And-Mixers FLI CAP Technology design and deliver a comprehensive. In some cases you may be able to re-use the initial structure and only replace the above water components such as decking and railing. It is treated with a copper-based preservative to mitigate the chances of rot and insect damage. Probably the most difficult decision to make when building a wood deck is what type of decking to use. A strong, durable, rot and insect resistant tree species could keep your fence problem free for a very long time, making you wonder why you contemplated using pressure treated posts in the first place. Pressure-treated lumber is infused with chemicals that help keep water and bugs from damaging the wood. Instead of opting for chemically treated fence posts, you can go au-naturale and choose a rot resistant wood. durable wood or wood that is preservative treated in accordance with AWPA U1 for the species, product, preservative and end use. Below is a list of the frequently asked questions and answers written as an aide in interpreting the implementation of the United States Heat Treatment and Fumigation Program. Over the life of your deck, those reduced maintenance costs add up to a greater value than wood—not to mention the value of the added time spent enjoying your deck rather than. The last time there was no new case was on March 13. The Difference between Pressure Treated Pine Fences vs. Look for a stamp containing the code LP-2 on the ends of boards. A client is comatose upon arrival to the emergency department after falling a roof. Not only can you can stain treated wood, you should stain treated wood. This will prevent the fence from turning dull and grey in colour over the years. But not all PT is created equal. A deck is a special part of your outdoor living space that should last for years. Southern Pressure Treaters’ Association SPTA was chartered in New Orleans in 1954 and its members supply vital wood components for America’s infrastructure. Wood flooring, including subflooring, and joists within 18 inches of. When you have a new wood fence installed, wait about a year before staining or painting it. For pressure-treated wood, it's crucial to use compatible fasteners because the preservatives used in the pressure-treatment process can adversely react with certain materials and cause the fasteners to corrode. Sun, rain, snow and mildew are all factors that can age a deck in just a few years, so learning how to stain pressure treated decks can help preserve their lifespan. Kebony Clear (Radiata Pine) modified wood has a Janka rating of 1,618, making it a very dense lumber that performs as you'd expect a tropical hardwood to. CCA preservative adds benefits to wood including proven efficacy, long product life, and low cost. The manufacturers soak the lumber in chemicals that penetrate into the outside surface. Pressure-treated wood is safe and environmentally friendly when properly treated, handled, and installed. Written 2005. Most treatment companies claim that when treated, most lumber will last more than 20 years. If you take care of them, they will both last a long time. Ordinary Maintenance. A strong, durable, rot and insect resistant tree species could keep your fence problem free for a very long time, making you wonder why you contemplated using pressure treated posts in the first place. The pressure washer guide teaches you all the fundamentals to get started with power washers and includes expert recommendations, advice, and tips. Pallets now require an IPPC logo which certifies that the pallet was heat-treated or fumigated with Methyl Bromide. She can barely turn her head without becoming very vertiginous; she is nauseous and just doesn’t want to move. Obviously, it’s a damp environment. Use 80-grit sandpaper, and thoroughly sweep or vacuum the decking when your done. Treated wood lasts a lifetime when properly maintained. For pressure treated wood allow 3-6 months before application. Tips to Provide Good Airflow. Surface treated wood may have an exterior color different than the inside. Army Corps of Engineers, Illinois. March (1) The Debate Over Micronized Copper Treated Lumber; April (2) Comparing Pressure Treated Lumber to Other Decking Lumber. Decks and fences are the most common uses for treated wood but it is ideal for a variety of applications. This holds true for pine and spruce, while cedar may last up to 40 years. Left natural, SBC cedar shingles will change color and will gradually become grey. But probably the biggest two benefits to using pressure-treated timber decking for a wetland boardwalk are the low cost and widespread availability of the material itself. The worksheet should be able to get you an exact estimate. KEYWORDS: pressure-treated wood, long-term, durability, posts, stakes Introduction Pressure-treated wood has been widely used as a durable construction material in the United States for over a century. Less durable in soil - Cedar doesn’t hold up as well as pressure-treated pine in soil, so it is rarely used for fence posts. Coastal Douglas fir is pressure treated. Usually, pressure-treated wood comes directly from the treater and is bound and shipped wet to the lumberyard, where it often is stored outside and unprotected. However, wood treated prior to this date can still be used, and CCA-treated wood products continue to be used in industrial applications [ATSDR 2007]. for up to 25 years. Cedar, Cypress, Redwood, Bo Dark, sp. You probably know that wood swells when it gets wet and shrinks when it dries. Learn when to use pressure treated lumber according to the 2012 International Residential Code. Tips for Preventing Wood Rot. This will prevent the fence from turning dull and grey in colour over the years. Blue Ribbon peeled pressure-treated posts and poles for agriculture are the environmentally sound choice for farm, vineyard, and ranch projects. Written 2005. Inspect periodically for soft or splintered spots, loose nails and deck attachments, and split or rotten planks. 2 x 4 Finger-Jointed HRA Stud. Decay will occur in untreated wood in direct contact with ground, cement or concrete, or exposed to a source of moisture such as rain seepage, plumbing leaks or. Preservatives shall be listed in Section 4 of AWPA U1. Burning treated wood concentrates and releases these preservative chemicals in the ash and smoke of a fire, which can pose both health and environmental risks. "Ground rated" treated wood contains a higher concentration of preservative chemicals than normal wood and will offer increased protection from decay while buried in soil. Properly treated posts should last at least a decade depending upon the ground conditions and climate where they are installed. Experiences really do seem to vary. Another great study about using treated wood in a produce garden is a 2014 study in the European Journal of Wood and Wood Products. Although pressure treated wood is weather resistant and durable, we recommend you stain it with an oil based stain once after waiting the required 90 days and then every 3-4 years after that. The new rule of thumb is 30 days, but your project could be ready in less time depending on factors like weather conditions and how long the material was in the lumber yard before you purchased it. An alternative to pressure treated wood is Trex or any other brand of recycled lumber. You may apply a clear preservative immediately, but it must be a product manufactured for use on fresh pressure-treated lumber. Ordinary Maintenance. The main beams that support the 170 foot tall “lantern tower” called the Oct. To start, pressure-treated wood is softwood lumber. Wood deck boards will need to be maintained (sanded, stained, sealed, deep-cleaned, etc. Look for kiln-dried, rather than air dried, pressure-treated wood, as this type is less likely to warp. At that point, Hawaii had a total of just two cases. I have done my research on this topic and I am fine with using pressure treated lumber for my vegetable garden. Of course, the alternatives may or may not be banned years from now as they are more widely used. Trim capping windows with vinyl or aluminum is especially popular in colder climates like the northeastern states where severe weather takes its toll on exposed wood trim. When lumber is wet it expands in length and width and shouldn't be used for construction. This holds true for pine and spruce, while cedar may last up to 40 years. As you select the Pressure Treated wood for your project, plan ahead. iStockphoto /DNY59. Of course, pressure-treated wood is intended for outdoor use. deep into and remains in the wood for a long time. Clean and brighten the treated steps just the same as the cedar wood. Some pressure-treating facilities use a mixture of IPBC. How long does treated wood last? Our treated lumber from Wolmanized® Outdoor® Wood (Lonza) carries a Lifetime Limited Warranty against fungal decay and termite attack. Un-maintained Treated Pine DeckI just returned from visiting a client whom inherited a pressure treated pine deck and was disgusted with its condition. According to the folks at Cuprinol, you should wait at least one to two months before staining. Treated wood is infused with chemicals; during the process, the wood is loaded into a tank and all of the oxygen is removed. Pressure treating does make wood rot resistant. When we first began thinking about creating a new Outdoor Space, we knew we wanted a comfortable spot to relax, have a drink and enjoy the weather. Pressure treated wood is normally light green or brown in color and is nothing more than good old fashioned wood treated under high pressure with a pesticide. When water soaks into the wood instead of beading up, it's time to seal or stain it. To make the wood so long lasting, it is first treated with chemical preservatives, then placed in a cylinder under pressure. The pressure treating process is pretty simple. 50 per square foot) is a popular and affordable wooden alternative. This effective and long lasting protection makes it very durable to applications exposed to the elements such as pergolas. The post will rot completely off in under 5 years right at the interface between concrete, grade and the timber. Any experience using non treated wood for an outdoor deck? I grew up in the midwest and have always been accustomed to using pressure treated wood for building anything outdoors but since I've moved to a desert climate I've been seeing and getting advice to just use white/non treated doug fir. I’d say at least once every two years, but Mother Nature has her own agenda. Typically, each gallon of Bora-Care, after mixed 1:1 with water, will treat about 1000 square feet of space, but if you have larger sized wood (for example: 2 x 8 instead of 2 x 4), then one gallon of Bora-Care may only treat 800 square feet. Price - Again, cedar is significantly more expensive than pressure-treated pine. Your treated wood requirements can be made to order. You may apply a clear preservative immediately, but it must be a product manufactured for use on fresh pressure-treated lumber. A pressure-treated wood deck will last 15 to 20 years or longer with regular maintenance. Pressure treated wood (PT) pine is the most popular residential fence choice in outdoor structures (decks, porches, and all types of residential fences, for example). Treated and Untreated Wood Some pressure treated wood is toxic, while some is not. Severe Weather above-ground lumber is treated with Ecolife (EL2), a unique formula that contains a built-in wood stabilizer to reduce cracking, repel water and keep wood straighter, longer. It might resist rot and insect infestation, but pressure-treated wood still needs to be cleaned and sealed to withstand water and solar damage. they are not as resistant as pressure-treated lumber or railroad ties. First is the use of pressure-treated wood in place of Douglas fir for sill plates in new construction. Pressure treated wood still soaks and looses moisture. 4m Mixed Hardwood Sleepers. You should use pressure-treated wood in any outdoor project such as decks and playhouses. When you use a pressure washer on stained siding, your goals are simple: Take away accumulated dirt and old stain, and get the wood’s pores to open. There’s no need for primer so it’s easy to apply and will keep your wood looking good for 10 years. Pressure treated wood contains preservatives to prevent rot and insect damage, but it remains vulnerable to the sun, wind, moisture and dirt. Wood takes about a year per inch to dry so a tree that has been down for a few years is still very green on the inside. However a look at the warranty period offered for treated wood products tells us how long the manufacturer expects their product to last, provided you used it and installed it properly. According to the folks at Cuprinol, you should wait at least one to two months before staining. 20 years lucky 15 maximum for treated wood, now when you. Pentachlorophenol Wood Preservatives Pentachlorophenol is a restricted use pesticide and is used industrially as a wood preservative for utility poles, railroad ties, and wharf pilings. Hawaii has been under a statewide stay-at-home order since the last week of March to slow. Our friendly professionals are experts in treated wood products and projects and are happy to assist with your treated wood questions. However green treated pressure treated wood should be allowed to dry out for 30-90 days before applying the first stain. Our 8′ long squares are Ponderosa pine treated for ground contact. This formula has been one of our best-sellers for over 20 years. Cedar posts will keep their nicer appearance longer than their pressure treated counterpart. The main beams that support the 170 foot tall “lantern tower” called the Oct. Assessment of the Risks to Aquatic Life from the Use of Pressure treated Wood in Water checks and cracks that develop naturally in wood over time. At least the tompson sealer is easy to apply. I want to glue and screw some pressure treated plywood to some PT 2×8’s. Companies and researchers typically expect properly-treated wood used outdoors, properly-installed, to have a life extension of 25-50 years. ‘About 100 medical staff are on the “shop floor” at any one. Pressure-treated timbers are typically what you use for a timber retaining wall. Typically, each gallon of Bora-Care, after mixed 1:1 with water, will treat about 1000 square feet of space, but if you have larger sized wood (for example: 2 x 8 instead of 2 x 4), then one gallon of Bora-Care may only treat 800 square feet. cedar outdoor furniture. Whether you are building or restoring a timber deck, the DEFY Extreme wood stain uses smart non-technology and high-quality resins that beautify, protect and promote the natural wood grain so that your deck has a professional, long-lasting finish. However, being outdoor structures, the wind, sun and rain can take its toll on a pergola. As you select the Pressure Treated wood for your project, plan ahead. It’s a water-based, synthetic resin, semi-transparent stain made with high-quality resins that bond firmly to the wood. Composite decks are made up of two main substances: resin and wood. This is a good time to countersink any raised nail heads or popped screws. The wood is then pressure-treated with a wood preservative. Whatever money. To get the most out of the outdoor space, homeowners choose outdoor furniture with care. Product Description Enhance the character of wood with our great water-resistant finish. When tackling an outdoor building project, it's important to use pressure treated wood so the project will resist rot and decay and hold up over time. , dock installation, shoreline stabilization), whether or not they involve the use Of pressure-treated wood, may require permit approval by the U. How Long Does Activated Carbon Last? Carbons capacity for chemicals depends on many things. Other materials can be used to treat the wood after the structure has been built. They will get damp in the morning and the sun will dry out the exposed side causing th. Before cutting the 2x6s into strips, we let the wood dry out in the sun for a few days. Cheapest option. ) at least every three years. Instead, it is semi-transparent and provides a very natural look to the wood that it is being used on. Department of. Click and Collect in 1 hour or enjoy free UK delivery on orders over %pound;150 excl. Elements to consider when using kiln dried wood outside is the moisture content of the wood and if the wood susceptible to moisture gain. Wood Patio Furniture : Shop the best selection of outdoor furniture from Overstock Your Online Garden & Patio Store! Get 5% in rewards with Club O!. The USDA prohibits treated lumber for soil contact use in their certified National Organic Program published in 2011. There is a correct way of going about the staining to get a beautiful finish for your wood pallets use for a re-cycled purpose. 5/4 decking is the most widely used product for the surface of the deck. Note: Using pressure treated wood for a vegetable garden… Some people freak out about using pressure treated wood to build vegetable gardens. Indeed, it is so reliable that for many years it has been – and continues to be – used by scientists as the benchmark against which other treatments and modified timbers are measured. Pressure Treated Wood Pergolas. Much has been written about the EPA agreement that resulted in its voluntary withdrawal from the U. ­ See more home construction pictures. Next, the chemicals are added to the tank under pressure which forces them into the wood. I wouldnâ t burn it in the wood stove though. The thought was that this would gain the strength and stability of an embedded pole structure, while keeping the nastiness of the pressure treated poles buried. Includes a DIY video There are many ways to grow your own vegetables but if you have enough space, building raised garden beds are best. The rest in the list, while an option, aren’t terribly popular. Trapping moisture in the wood by staining it too soon is not good. Visit Lowes. Pressure Treated Wood This is probably the most common option for deck material and thus our lease favorite choice her. 50 per square foot) is a popular and affordable wooden alternative. Pentachlorophenol Wood Preservatives Pentachlorophenol is a restricted use pesticide and is used industrially as a wood preservative for utility poles, railroad ties, and wharf pilings. Most builders and remodelers use pressure treated lumber to build exterior decks, and the AWPA. The wood preservative will help repel insects and decay for the long-term but not forever. A common habit that horses develop to ease their boredom and frustration is chewing on their wood stalls or other wood in their enclosures. Moisture, soil, insects, roots, etc… can get between the plastic and the wood, and rot may speed up in a "trapped" environment like this. How long does treated wood last? Our treated lumber from Wolmanized® Outdoor® Wood (Lonza) carries a Lifetime Limited Warranty against fungal decay and termite attack. We put thompsons on last year and it has worked great. Most pressure-treated lumber sold before January 2004 was treated with chromated copper arsenate (CCA for short), which. The type of bronchitis you have determines how long it will last. Improve Indoor Air Quality – Cure Damp-Musty Basements, Cellars or Crawl Spaces Tjernlund Products offers a pair of unique, energy-saving fans that are capable of automatically and simultaneously ridding basements or other areas of stale, musty or smelly air and drawing in fresh outside air. Southern Pressure Treaters’ Association SPTA was chartered in New Orleans in 1954 and its members supply vital wood components for America’s infrastructure. If the wood is prepped and is more porous, then the better the stain penetrates and the longer it will last. Apr 20, 2006 what I was told is that it was recovered from being under water so I gather it will last a long time, also, the grain in it seems less likely to splinter, very nice looking wood depending on how it is cut and how clear it is. all treated wood purchases. The existing wood has rotted out. Part 1 applies in Australia only and parts 2 to 5 apply in Australia and New Zealand. The Pros & Cons of a Pressure Treated Wood Deck Pressure Treated Wood Decking If you are in the market to replace your existing deck or build a brand new one, you will encounter 3 main types of deck material that you will have to consider using for your new deck. 5/4 x 4 x 12' Green Pressure Treated Decking. On my last trip to England I visited the cathedral in Ely and was struck by the longevity of large structural beams made from a material that I dont really think of as a millennial building material… wood. The result is ACQ (Alkaline Copper Quaternary) treated lumber. Climate: The vertical outdoor durability ratings for most self adhesive vinyls sold in the USA are valid for most of the country. Most pressure treated lumber will be more expensive than natural wood due to the cost of the additional processing. How long will termite treated wood last? Service life of pressure-treated wood ranges from 10 to 50 years. ) at least every three years. The logo in the first image shows that it was produced in the U. Usually, pressure-treated wood comes directly from the treater and is bound and shipped wet to the lumberyard, where it often is stored outside and unprotected. However, there are non- treated alternatives like the plastic woods, e. Less durable in soil - Cedar doesn't hold up as well as pressure-treated pine in soil, so it is rarely used for fence posts. Insects and mold can damage wood over time. The CCA treating process extends the life of wood requiring fewer trees to be cut. If you grind it up and feed it to them it probably will make them sick, if you barbecue with it it will make you sick If you want to rebuild your coop in 2-3 years use non PT lumber. To minimize shrinkage, SPIB's Standard Grading Rules for Southern Pine Lumber require dimension lumber 2″ or less in thickness be kiln-dried or seasoned to a moisture content not exceeding 19%. However, some construction projects within the state's waterbodies (e. Cuts, holes, and notches must be fi eld treated to restore resistance. Wood house siding less than 6 inches above ground-level must be pressure-treated. Pressure-treated wood is poisonous to insects, fungus, and bacteria, as well as humans and pets. Provided they haven’t been exposed to chemicals; oak (Quercus sp. I'm sure the answer depends on type of wood, conditions and climate but now I have a clue in my garden. The Forest Products Laboratory and other research groups have shown that treated wood stakes placed in the ground for more than 40 years remain rot-free. Any person who is found burning treated wood is guilty of a misdemeanor and is liable for severe civil penalties and/or fines. It is also useful to treat pressure treated wood as the heartwood is not treated properly by pressure treatment (especially refractory species such as Douglas fir, and the transition wood of pine decking is often the first to rot out and will greatly benefit from a treatment with Boracare with Moldcare at 5 years (see Lloyd et al. To start, pressure-treated wood is softwood lumber. There are sealants that can be used to reduce the leaching of arsenic from CCA-treated wood for up to twelve months of natural weathering [EPA 2007]. It should be made from pressure treated softwood, chemically modified or heat treated timber or a species with sufficient inherent natural durability. We just got our copy of Ben Law's book on roundwood timber framing, and we're feeling inspired. Pressure treated wood contains preservatives to prevent rot and insect damage, but it remains vulnerable to the sun, wind, moisture and dirt. •UC3B Above Ground Exposed — Treated wood materials used in exterior construction that do not come into contact with the ground. On average, a deck made from pressure-treated pine will last 15 to 20 years before succumbing to the accumulated stress of direct sunlight, rain, salty ocean breezes, insect infestation and repeated cycles of thermal expansion and contraction. Clean and brighten the treated steps just the same as the cedar wood. The treatment process forces a waterborne preservative deep into the cellular structure of the wood providing long-term protection against rot, fungal. And an outdoor project's not finished until it's been stained, sealed or painted. Pressure-treated lumber ($1. By Matt Weber. 1955 Lake Park Drive, Suite 250, Smyrna, Georgia 30080. Not suitable for subterranean or submerged wood. The wood purchased for the bottom plate indicates it has alkaline copper quartenary. Wood is also more vulnerable to water penetration at the cut end (end grain) than the sides. Creosote posts and boards. 05 pounds per cubic foot (0. In addition, the treated product is clean, dry, non-slippery, and paintable, low in odor, and has a pleasing appearance. Often made from a southern pine infused with a chemical to make it resistant to rot. Wood deck boards will need to be maintained (sanded, stained, sealed, deep-cleaned, etc. My own field. In places where there are masonry elements such as brick or concrete, the siding can be lowered, but still no less than 2 inches from those elements. The Forest Products Laboratory and other research groups have shown that treated wood stakes placed in the ground for more than 40 years remain rot-free. Arsenic, copper, and chromium levels found in the vegetables grown in raised beds made from pressure-treated wood were the same as conventionally grown vegetables purchased from a grocery store. Pressure-treated wood is intended for outdoor use only! There are a few exceptions to this rule, though you should check with your local building inspector to be sure. Trex should age for 3-4 months. Pressure-treated lumber is ideal for outdoor construction as it has a long, useful life span and is much less expensive than alternatives. Pressure-treated wood should last at least 20 years, and may even come with a limited lifetime warranty. Wood for any outdoor project should be pressure-treated; wood for indoor projects should be left as is. Wood joists or the bottom of a wood structural floor when closer than 18 inches (457 mm) or wood girders when closer than 12 inches (305 mm) to the exposed. Treated wood is infused with chemicals; during the process, the wood is loaded into a tank and all of the oxygen is removed. Donley, I would like to put some raised planter boxes in my yard to grow vegetables and herbs. They're all rot resistant to varying degrees, require 16-in. Hardscaping 101: How to Care for Wood Outdoor Furniture Janet Hall April 13, 2017 Soon it will be time to drag the outdoor furniture from hibernation or, if you live in sunnier climes, add it to your spring cleaning list to get ready for dining al fresco. If you'd rather not deal with it at all, there are options to protect exterior wood. Let the solution stay on the roof 15 to 30 minutes, then rinse thoroughly with a high- pressure power washer or a garden hose. A look at the best, the worst and the spiciest of the latest weekend of esports, which saw Sebastian Vettel making his long-awaited online racing debut. Deck Stain Secret#2: Prep New Wood Differently Than Old Wood. Pressure-treated pine lasts much longer thanks to chemical preservatives, making it great for decks, fences, and other structures. CWF-UV ® Clear Wood Finish provides a natural finish that protects wood from sun and water damage. So if its a frost wall run tarpaper to the grade height outside, 2x4 wall insulate, make sure you have vapour barrier on the bottom of the plate you do not need pressure treated or sill gasket, the sill gasket will do nothing. Termite control also utilizes specialized equipment such as powerful masonry drills, large-capacity spray tanks, and long metal rods for injecting soil. While it does come in a small package, a little goes a long way. Alternatively, you could build the frame of your vegetable garden with pressure-treated wood (ACQ or CBA), then cover the inner wall. Last, take four more 2x4's and cut them down to 6'-0 in length, these determine the length of the box. Ordinary Maintenance. Pressure treating does make wood rot resistant. 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. Round pilings are commonly used for a huge variety of construction projects including:. Pros: Best for the look of wood without the need to stain. plywood, is not ” Marine grade” plywood, and those designations do not make the two products arbitrarily interchangeable. Department of. Termite control also utilizes specialized equipment such as powerful masonry drills, large-capacity spray tanks, and long metal rods for injecting soil. Learning how to stain pressure treated wood can extend the life and improve the appearance of decks, fencing, picnic tables, retaining walls and other exterior wood projects. 50 per square foot) is a popular and affordable wooden alternative. If the water beads and remains on the surface, the wood is protected. radius-edged cedar, pressure-treated and composite decking—share similarities. However, wood treated prior to this date can still be used, and CCA-treated wood products continue to be used in industrial applications [ATSDR 2007]. After treating the wood with this product, you will be able to achieve silver or brown aged finish, which looks very elegant. This formula has been one of our best-sellers for over 20 years. I told the client these posts might be ok for a while, maybe ten years even, but they will eventually rot and then this whole deck with a hot tub and a gazebo cover will be in danger of collapse, needs a proper concrete foundation. ) at least every three years. Hard pine works as long as you paint it well with a quality outdoor paint, but if you don't want to paint, one of the types of wood I mentioned can be used without treatment. Thompson’s Advanced Natural Wood Protector – Best Outdoor Sealer for Pressure Treated Wood. Diesel Fuel Surprisingly, diesel doesn't have a very long shelf-life. CWF-UV ® Clear Wood Finish provides a natural finish that protects wood from sun and water damage. Just got a delivery of some pressure treated lumber for my deck (2×14's, 6×6's, 2×10's, etc). radius-edged cedar, pressure-treated and composite decking—share similarities. The borates are non-corrosive to metal fasteners used in lumber, they are odorless, and they are extremely cost effective. • Protecting adjacent surfaces, such as siding, with painter’s tape and plastic sheeting. Pressure-treated wood still needs to be stained every year to retain its water-repellent properties. Pressure-treated wood is poisonous to insects, fungus, and bacteria, as well as humans and pets. are alternatives as is a northern wood called Ironwood. Wood deck boards will need to be maintained (sanded, stained, sealed, deep-cleaned, etc. Scraped material is placed on a slide, treated with KOH (potassium hydroxide) and examined under the microscope for signs of fungi. This method of preserving wood was voluntarily discontinued in the production of residential woods in the United States (2003) and Canada (2004), but it is still used for industrial purposes. Our friendly professionals are experts in treated wood products and projects and are happy to assist with your treated wood questions. Trex should age for 3-4 months. Pressure Treated Wood Pergolas. • Sanding any ridges or lifted grain with 80-grit sandpaper; cleaning up any dust. The treatment process involves placing a load of lumber in a huge cylindrical chamber called a retort with a door on one end that can be sealed airtight, and then. We were thinking of using scaffolding boards (about €5 per 8ft length here in West Kerry, Ireland) but was advised by a guy making polytunnels to use pressure treated 9x2s (€20 per 16ft lengths). I have a wood deck outside my house that is made of untreated wood. These low maintenance dense woods have a natural ability to repel moisture, insects, and rotting, which make them an excellent choice when building outdoor wood furniture. Although no wood is completely immune from rotting and insect damage, some resist decay better than others. In terms of the type of wood, you can opt to seal decks made of pressure-treated pine wood with a solid stain, but high-quality hardwood furniture doesn't deserve to be spoiled in this manner. For outdoor wooden furniture, consider applying Krylon® Exterior Semi-Transparent Wood Stain, which offers durability, UV-fade protection, and water repellency. The most popular non-wood decking materials are composite and PVC. It can be used indoors or outdoors because it has passed ANSI/HPVA Type II water-resistance tests. Q: I want to build a raised bed for vegetable gardening this year. After treating the wood with this product, you will be able to achieve silver or brown aged finish, which looks very elegant. Wickes Treated Kiln Dried C24 Timber has been graded to C24 strength for structural use, a stronger grade than C16 for heavier loads. The pressure-treated lumber will resist rot and insect infestation, but the effects of the sun, weather, dirt, mold, etc. Treated wood can last more than 40 years. slobo/Getty Images. Untreated wood can last centuries if it is kept dry. In most home centers, pressure-treated lumber is located in its own aisle, and has a distinctive green cast to its color. Some varieties of wood siding shouldn’t be painted; T1-11 are rough-cut cedar are examples. Outdoor finishes have one thing in common; they all require maintenance. Only non-pressure wood treatments can be done at home, and of the various non-pressure options, spray or brushed solutions are far and away the most common. Please select a store to obtain price. Romaine lettuce grown in pots with soil in which small amounts of compounds such as arsenic were also tested to see how much of the chemical would be. Cedar could last 30 years or more and will not warp! Pressure Treated Pine: This type of lumber usually originates from the Southeastern United States, and can be a Southern yellow pine species or a mixed pine species. All you really need is for the surfaces to be firmly in contact with one another. They’re all rot resistant to varying degrees, require 16-in. When building an exterior project with wood, stain or paint all sides of each lumber piece before assembly. The worksheet should be able to get you an exact estimate. Also, pressure treated wood is not an option as the chemicals used to pressure treat are debatable as far as their effect on chickens, organic eggs etc. DEFY Extreme Wood Stain is an easy-to-use, water-based deck stain that can be used on decks, siding, fences, or any other type of exterior wood surface. Wood deck boards will need to be maintained (sanded, stained, sealed, deep-cleaned, etc. Re-manufactured heat treated lumber- There are cases when a lumber supplier receives a request for a particular dimension of heat treated lumber that they do not carry or have in stock. The manufacturers soak the lumber in chemicals that penetrate into the outside surface. are alternatives as is a northern wood called Ironwood. Each 2×6 board rendered 15 strips and took about 30 minutes to make on a large, stationary table saw. • Sanding any ridges or lifted grain with 80-grit sandpaper; cleaning up any dust. Share on other sites. creosote treated wood produced for the railroad industry in 1997. Pressure treated wood, usually pine, has gone through processes that force chemical preservatives into the wood. This 100% acrylic finish formula allows you to clean, prep and finish your deck or dock all in one day. Most common uses for creosote treated wood include railroad and bridge ties. Any wood presure treated for outdoor use will be marked either CCA (if it's older than about 5 years) or ACQ if it's realtivly new. The wood you choose for your pergola will determine how long your structure will last, how much. Arsenic in Old Pressure-Treated Wood l 6 Steps to Reduce Exposure l Should I Be Concerned? l Gardening & CCA-Treated Wood l How to Identify CCA-Treated Wood l Local Options for Purchasing Lumber l Disposal l Related Links & References: Arsenic in Old Pressure-Treated Wood. Keep in mind that even some occurrences of using pressure treated wood have shown that decks can become rotting or expiring problems within 10 years or less. Treated Wood Applications & Service Life. The KILZ floor coating has a low-luster finish that's perfect for sprucing up your deck, porch, or patio. 5/4 decking is the most widely used product for the surface of the deck. I have done my research on this topic and I am fine with using pressure treated lumber for my vegetable garden. • The use of penta is prohibited in 26 countries around the world, but not in the United States. In most home centers, pressure-treated lumber is located in its own aisle, and has a distinctive green cast to its color. 50 per square foot) is a popular and affordable wooden alternative. There are sealants that can be used to reduce the leaching of arsenic from CCA-treated wood for up to twelve months of natural weathering [EPA 2007]. AS/NZS 1604 is a series of five standards specifying the preservative treatment of timber and timber products. It provides a termite and rot resistant envelope treatment that can last for 30 years or more. Most likely you got wood that had sat out in the weather and been rained on. A pressure-treated wood deck will last 15 to 20 years or longer with regular maintenance. Wood Fence Posts and Poles, Wood Fencing. However, I have heard a lot of bad publicity about pressure-treated lumber. Unlike natural cedar, which fades to gray over time, AC2 ® Premium CedarTone lumber, timbers, and boards will maintain their beautiful, lush color for a minimum of two years, then fade to a more natural color. ) Step 2: Draw a straight line 12 inches in from the short edge using the marks you just made. Wood is often considered desirable as a building material because it’s a natural product. ) I pressure washed a few times over 10 or 12 years, but other than a couple warped boards the deck was still in good shape when we moved. Updated for 2020 – Best Deck Stains. Life of treated wood Most treatment companies claim that when treated, most lumber will last more than 20 years. CCA lumber for residential use was phased out in 2004 due to health concerns, but UV Plus is suitable for all other commonly used types of pressure treated wood, including ACQ and copper azole. Producer/treatment provider code: The producer/treatment provider code is a unique code assigned by the NPPO to the wood packaging material manufacturer or treatment provider doing the treatment. We have been wanting to build a deck area for many years, but let’s face it, decks can be expensive to build. For pressure treated wood allow 3-6 months before application. When building an exterior project with wood, stain or paint all sides of each lumber piece before assembly. Price: About $225 to $825 or more per 100 square feet. Undoubtedly it maintained themselves since issue Cialis. Original_Brian-Patrick-Flynn-deck-with-painted-area-rug-step-6_s4x3. We would suggest Lovely Metal Outdoor 3 Piece Seating Group Set. Original_Brian-Patrick-Flynn-deck-with-painted-area-rug-step-6_s4x3. On the outside edges, I rolled the material and tacked it just below floor. If you take care of them, they will both last a long time. How to treat outdoor wood You may wish to leave new hardwood and pressure-treated softwood to weather naturally. the use of pressure-treated wood in waterbodies or on land. Just like any other DIY project, you need to suitably prepare the surface before you paint it. The sleeper boards run the length of our boardwalk while the actual walking surface boards run perpendicular to them. Although these are indeed the most common garden. At that point, Hawaii had a total of just two cases. That being said, pressure-treated pine fences need to be consistently and regularly maintained. All our decking kits are made from top quality pressure-treated timber and are supplied with a 15-year anti-rot guarantee, making your new outdoor living space a long-term fixture. Wait overnight before subjecting the wood to normal use. "Ground rated" treated wood contains a higher concentration of preservative chemicals than normal wood and will offer increased protection from decay while buried in soil. Even pressure treated wood needs to be sealed. Facts About Pressure Treated Lumber Some frequently asked questions about pressure treated lumber: What is pressure treated lumber? Pressure treated lumber products, such as YellaWood ® brand products, are treated in a pressurized cylinder. Sand the deck to remove any fuzzy grain raised by the washing. When tackling an outdoor building project, it's important to use pressure treated wood so the project will resist rot and decay and hold up over time. Cedar deck boards are sold as a cheap alternative to composite and harder wood varieties. Pressure treated wood still soaks and looses moisture. cedar The Wood Doctor offers his prognosis for outdoor projects using cedar and treated pine. They will get damp in the morning and the sun will dry out the exposed side causing th. non-arsenical preservative treated lumber (pressure-treated lumber) (Table 1). ) at least every three years. Since you are using screws, the only way to attach a deck in my opinion, any boards that really split or warp can be replaced easily. It can also be used for flower beds. The preservative often gives wood a greenish color. It starts out green and turns gray with age. Below is a brief summary of the AWPA's Use Category system for treated wood. Many varieties of acacia (or locust) grow around the world and are renowned for their long-term, outdoor durability. We put thompsons on last year and it has worked great. They’re all rot resistant to varying degrees, require 16-in. Please select a store to obtain price. CWF-UV ® 5 is a higher-performing CWF-UV ® finish that offers more protection from sun and water damage. However, as the wood weathers it becomes harder to distinguish from untreated wood. So, if you build, say, a deck out of green-treated wood, it'll be ugly for a long time. Pressure-treated wood is poisonous to insects, fungus, and bacteria, as well as humans and pets. ANSWER: Under optimal conditions, 15-20 years. The sawdust from pressure-treated wood is an irritant to the eyes, skin, and nose. The density and weight of lumber varies with the water or moisture content in the wood. Due to preservatives in pressure treated wood, it should never be burned. The last time there was no new case was on March 13. The person who takes big risks for big rewards often has a hard time turning cautious. Browse our range of trade standard treated timber such asTravis Perkins Sawn Pressure Treated Softwood Timber Board Green 22mm x 100mm x 1. When pressure-treated wood is burned, the preservative chemicals concentrate in the ash and may be inadvertently inhaled. Can anyone tell me what fence post is more resistant to rot and insects: pressure treated posts or untreated redwood? Is the brown pressure treated wood better than the green treated wood? Is there some website that you can direct me to that shows this information. This is then related to penetration. I wouldnâ t burn it in the wood stove though. Fortunately, most wood deck surface problems are cosmetic, not structural, because decking is built of durable woods, usually redwood, cedar, or pressure-treated pine. This allows time for the wood and chemicals used for pressure treating it to dry out. The treatment process involves placing a load of lumber in a huge cylindrical chamber called a retort with a door on one end that can be sealed airtight, and then. This wood has been pressure treated with MCA or CA-C chemical. I need to start checking for installation plates with dates when I'm out walking the dog - the wood preserving industry is claiming functional lifespans of 50-75 years (or more with periodic re-treatment of the area around grade level), but they obviously have a vested. You probably know that wood swells when it gets wet and shrinks when it dries. I use it to make windows here in Tampa, Florida where moisture is a problem. You may apply a clear preservative immediately, but it must be a product manufactured for use on fresh pressure-treated lumber. Project List Compare. Benefits of Pressure-Treated Wood. Treated wood: Treated wood (also called pressure treated) is wood into which chemicals have been forced under pressure. Other types of plywood include pressure-treated, exterior-grade, and decorative (overlaid) plywood. A good finish, applied correctly, on an exterior project may not need any additional care for up to two years. Additionally, we build our saunas with western Canadian red cedar, the choicest of sauna wood due to the texture, color and aroma the lumber provides. The photos below show a playground containing arsenic-preserved wood. When working with treated lumber, we suggest you wear gloves, eye protection and a dust mask (NIOSH N95) when handling wood. (spray) We use the sealer on all wood on trailers. When building an exterior project with wood, stain or paint all sides of each lumber piece before assembly. Items 1 to 12 of 14 total. Keep your wood deck looking its best with the right cleaners, sealers and stains. Pressure treated lumber is used for fence posts, garden beds, decking, playground equipment, and many other structures that are either partially below ground or have significant exposure to the elements. A common habit that horses develop to ease their boredom and frustration is chewing on their wood stalls or other wood in their enclosures. According to the folks at Cuprinol, you should wait at least one to two months before staining. How long each type of wood will last will vary with location, use, grade of wood and so forth. Marine-grade plywood is commonly constructed using Douglas Fir or Western Larch tree lumber, as these types of wood generally lend themselves very well to the durability required within a marine type environment. Although you may not know exactly what type of wood you are getting in every tie, you can be sure it will hold up under pressure. Its an oily wood that grows in the swamps and doesn’t rot for years after it dies. Pressure-treated lumber is a wood that's been treated with a preservative to protect it from weather, fungus, decay, and insects. Re: Why not pressure treated plywood? Unfortunately I cannot provide much feedback. Anything above ground will last for a very long time made out of regular wood if it is painted or protected from the weather (inside framing for example). Lifespan - Cedar is known to last 30 years or more with proper maintenance - about double that of pressure-treated pine. In order to give your project the touch of a perfect finish, you are going to pass through the wood pallets staining process. Kiln Dried, Pressure Treated or Green Lumber for Fencing 9 May, 2016 Wood Fence If you are planning on investing in a Houston wood fence , you should know the difference between pressure-treated, green lumber and kiln-dried wood. Cedarshield is designed to protect fences, decks, docks and outdoor furniture from moisture and decay. To address the pressure treated wood safety concerns, in 2002, the United States' Environmental Protection Agency convinced lumber manufacturers to find a non-arsenic based formula for treated. Posted May 27, 2012. Most importantly, your timber deck boards and indeed all of the timber used in the construction of the decking, should be sufficiently durable to provide long term performance in outdoor use. Avoid non-porous plastic, as it can retain too much moisture and discourage beneficial critters. Pressure Treated for longer life and to help resist rot. Install post and piers. Instead, it is semi-transparent and provides a very natural look to the wood that it is being used on. The standard is a 2 letter country code (xx), a unique number (000) assigned by the National Plant Protection Organization (NPPO), HT for Heat Treatment or MB for Methyl Bromide, and DB to signify debarked. gusbuster, Dec 12, 2000. This is my secret!. And (insert species here)… 2009. 03-20-2012, 04:18 PM. Burning treated wood concentrates and releases these preservative chemicals in the ash and smoke of a fire, which can pose both health and environmental risks. Pressure treated lumber is rated for 20 years and can normally last as long as 30 - 35 years in full ground contact. Whether it is used to create raised beds, the edges of paths or a frame for protective netting, wood is the natural choice for many gardeners. Guidelines for treated wood. For cedar, redwood, or pressure-treated wood, a 8d x 2 3/8 stainless steel nail is excellent for face nailing. Also, when pressure-treated wood is used in construction, there will be new cut wood ends, as well as new notches and drill holes that are not protected and are supposed to be spot-treated with the. residential market in 2004, but it's still unclear whether CCA-treated lumber actually poses a health risk. The chemicals help the wood resist insects and decay. For projects at or below ground level, such as fence posts, make sure the pressure treated wood is rated for “ground contact” to resist destructive pests like termites. Small amounts of copper and quat do leach, but nothing in ACQ is considered hazardous by the EPA, and no ingredient is a known or suspected carcinogen. W W Whites Outdoor 750 x 50mm Retain-iT Joint …. This is why it is essential to protect your outdoor projects with a good quality finish and if possible, use a cover to. This will result in an average moisture content of about 15% at the time of manufacture. ) at least every three years. All three choices—5/4 x 6-in. Long ago, hardwoods were used for these applications and in some cases the painted wood would last for 50 years without serious rot and deterioration. All PTP fences come with a warranty to protect against termites and rotting. - - Protection of wood and wood based products from decay shall be provided in the following locations by the use of naturally durable wood or wood that is preservative-treated in accordance with AWPA U1 for the species, product, preservative and end use. I wouldnâ t burn it in the wood stove though. A strong, durable, rot and insect resistant tree species could keep your fence problem free for a very long time, making you wonder why you contemplated using pressure treated posts in the first place. Fasteners for pressure-treated wood If you purchase one of the new-generation pressure-treated woods (came to the market in 2004 or later), be sure to ask your retailer about recommended screws and fasneners. On the outside edges, I rolled the material and tacked it just below floor. Subflooring and Joists. Kiln Dried, Pressure Treated or Green Lumber for Fencing 9 May, 2016 Wood Fence If you are planning on investing in a Houston wood fence , you should know the difference between pressure-treated, green lumber and kiln-dried wood. You can place this product into concrete for greater durability. Frequently Asked Questions. How long does untreated lumber last as a garden bed? That is a great question. From the 1970s to the early 2000s, the majority of the wood used in outdoor residential settings was chromated arsenical-treated wood. Pressure treated wood still soaks and looses moisture.