Copyright 2018 by Cut The Wood. You don’t need to apply sealant on pressure-treated wood used for building subflooring and supports because pressure treated wood doesn’t release any gases or particulates that can pose any risk. x 4 in. x 8 ft. Construction Common Redwood Lumber (4-Pack) with 28 reviews. Pressure treated timber is affordable, especially if you compare it with other wood types such as redwood. Perry Mastrovito Design Pics/Getty Images. Pressure-treated lumber is, of course, an undisputed workhorse in home building. For older pressure–treated lumber that contains arsenic, follow certain safety precautions to protect your pets. You may be able to find more information about this and similar content at, 6 Things To Know Before Installing an Pool, How to Paint Your Concrete Patio To Look Like-New, These Garage Door Openers Make for Secure Parking. And its makeup is simpler than you may have guessed. Pressure treated lumber is rated according to the amount and type of chemical preservatives used in the treatment process. Never touch pressure-treated wood and rub your eyes or eat with your hands because you may ingest poisonous arsenic. You must use pressure treated wood where there’s direct contact between wood and anything that has moisture. Backyard Geniuses: 10 Incredibly Cool DIY Projects, Know Your Stuff: The 110 Best DIY Tips Ever, 5 Pro Painting Tips Every Amateur Should Know: DIY Guy. The level of rot resistance is directly related to the amount of chemical preservatives in the wood, and the type of chemicals used. It's expressed in pounds of preservative per cubic foot of wood. That’s because pressure treated wood is great at resisting rot and wood-nesting bugs. Wood is naturally vulnerable to the elements. The pressure treating process infuses wood with chemicals under great pressure. How Long Does Pressure Treated Wood Last? Using pressure treated lumber indoors is a subject of great debate among wood experts. You come up against several opposing factors. Lumber that has been rated for ‘Above Ground Use’ is ideal for use in projects where it won’t be touching the ground, such as with fence boards or stair railings. Pressure treated lumber is resistant to mold, water damage, and pests. Pressure Treated lumber (PT lumber) is a very convenient and affordable choice to offer your home buyers for exterior applications. According to the 2019 Builder Practices Survey by Home Innovation Research Labs, treated wood accounted for 40% of all decking material used in 2018, 38% of deck railings, 28% of porch railings, and 96% of vertical fencing materia… Pressure-treated lumber is any wood that has gone through a preservation process in which pressure is used in order to force the preservatives into the wood. Once you made your choice, the next thing you might think about is the quality of that wood and this is where pressure treatment is important. Today, a giant industry has grown uparound his quest to invent a wood that can last forever.Pressure treating is a Pressure-treated wood is wood that has been chemically treated to beat the weather elements as well as prevent mold from growing and rotting your wood. Pressure treated wood is a great and cheap choice for outdoor applications but because of its treatment, it is kind of hard to color it. Apart from the previously mentioned water- and mold-resistant characteristics, it is easy to install and finish. Some of the most reviewed pressure treated lumber are the Mendocino Forest Products 2 in. •Before driving in a nail or screw, drill a pilot hole to prevent splitting the wood. Pressure treated wood can be used to panel walls in a basement as well. They include: The End Tag; Usually, pressure treated wood comes with a label in the form of a stamp designated as “ pressure-treated wood.” In most cases, you will find that the chemical used in the pressure treatment is stamped there plus the rating, … However, it's important to note that not all treated wood is created equal. •Cut treated wood outdoors, not in an enclosed space. Here is what you get: Take note that anywhere inside the house pets and kids spend time regularly should be built with non-treated wood including decks, beds, play sets, tree houses, gardens and more. World's First Nuclear Fusion Power Plant Is Coming, Sodramjet Could Reach Anywhere on Earth in 2 Hours, Here's What Really Happened in the Falklands War, The Sea Shadow, America's 'Invisible Warship'. Woodworking Basics / By Chris Using pressure treated wood for outdoor projects – such as decking and front doors – is essential. The higher the number, the more rot-resistant the wood is. This confusion began to occur when the industry stopped using chromated copper arsenate (CCA) for residential use. "It's hard for even the most experienced professionals to keep up with all the changes," he adds. Cons of Pressure Treated Wood This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Other common chemicals used are Alkaline Copper Quaternary (ACQ), Copper Azole (CA), Sodium Borate (SBX), and Micronized Copper Quaternary (MCQ). Find out, and read our top tips for working with pressure-treated wood. This is also true for pets especially dogs or cats that live with you indoors. Pressure-treated lumber is wood that is engineered for use on projects that are exposed to the elements. •After being outdoors for six to 12 months, treated lumber will develop cracks, called "checks," along the surface of each board. Wood is undoubtedly beautiful, no matter what species of wood you may have. x 8 ft. Construction Common S4S Redwood Lumber (4-Pack) with 31 reviews and the Mendocino Forest Products 3-1/2 in. Lumber treated with sodium borate (SBX) or micronized copper quaternary (MCQ) is generally safe, as long as you don't use it for a food surface or in a place where pets can chew it. It prevents rotting and insect infestation. •Always wear safety goggles and a dust mask when cutting, drilling, or sanding. Must be used when lumber is less than 6 inches from the ground or has poor ventilation. Pressure treated wood is the most cost-effective building material available. Other common chemicals used are Alkaline Copper … The chemical used in pressure treating wood is not safe for humans and to pets. MicroPro Sienna Treated Wood uses the only wood preservative technology that is low VOC and certified as an Environmentally Preferable Product. Wood that has been chemically treated to extend its life, especially when outdoors or in contact with the ground. Because the most common way to ingest the toxic substance is by touching and using your hands afterwards then a sealant is a suitable barrier between you and wood. Never burn treated wood. You must exercise caution when touching or picking up wood. They are durable when used externally, unlike the non-pressure treated wood. While many woodworkers strongly object to the use of pressure treated lumber inside a home, there are others who say that the use of pressure treated lumber indoors is perfectly safe. As a result of deep chemical treatment, pressure treated lumber becomes particularly resistant to damp, rot and insects. Because of its resistant nature, pressure–treated wood is used in many outdoor building projects like decks and walkways. Treatment is accomplished by placing wood in a large chamber, filling it with liquid solutions, and pressurizing the chamber once the lumber is saturated. Surface, preservative-treated wood is an alternative to pressure-treated wood for some applications such as posts or decorative trim. All types of lumber, from the common 2 x 4 to specialty plywood, is either pressure treated or not at all. Cedar is a good alternative to pressure-treated wood because it has rot-resistant properties and is pest-resistant as well. Oil-based sealants can reduce the amount of dangerous arsenic, copper, and other toxic compounds from reaching the surface of the wood. The new pressure-treated wood uses Alkaline Copper Quaternary (ACQ) or Copper Azole (CA), which has replaced the Chromated Copper Arsenate (CCA) wood preservative. Pressure treated lumber is resistant to mold, water damage, and pests. Probably two to three days under ideal environmental factors like humidity and temperature. The pressurized approach makes sure that the chemical makes it to the core of each piece of wood -- it is much more effective than simply soaking the wood in the chemical. How To Determine If Wood Is Pressure Treated. Because of its severe effects on health, non-pressure-treated wood is used indoors and pressure treated lumber is used only for the support structure of a deck while untreated wood is used to construct the deck’s surface. The chemical used to treat wood is known as one of the most toxic. If the water beads up, the wood is too wet and you must wait before applying a finish. Pressure-treated wood is a kind of wood that has been treated with chemicals to give it adequate strength to support heavy objects and structures in construction. "It sounds simple, but there's a fair amount of confusion about retention levels with pressure treated wood," cautions John Daingerfield, buyer, for Jaeger Lumber, a chain of seven New Jersey building material centers. How Long Does it Take for Wood Glue to Dry? Pressure-treated wood takes stain far better than it takes paint. You must never forget this treatment if you have this kind of building material at home. Surface preservative-treated wood is topically treated, rather than having the chemicals forced into the wood. A very toxic chemical is used to pressure treat wood and this is dangerous for animals and humans. It’s better to use treated lumber and be at peace knowing your home is secure than to use untreated wood for the supports and have these rapidly rot away. At Universal Forest Products, we treat our ProWood Micro CA pressure treated lumber with a formulation known as Micronized Copper Azole, or MCA. Health concerns about the chemical led the wood treatment industry to stop using it for residential purposes in 2003, but it's so effective that it's still used for telephone poles, docks, boardwalks, and large-scale commercial projects. Note that this requirement is only for exterior walls, as these may wick moisture onto the lumber. To ensure you're building with the right lumber, check the board's label or stamp for its chemical retention level. One such consequence is twisting over time. .ACQ treated lumber has been proven safe for people, animals and plants. We may earn commission if you buy from a link. It’s more strong and ready to paint after purchase. The last recourse is to use pressure-treated wood that has been treated with an oil-based sealant. These newer types of treated woods may be less toxic, but they also contain higher levels of copper, so they're much more corrosive than the old CCA-treated lumber. But now retention levels vary depending on the preservative used. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to But sometimes, it needs good old TLC to keep it rot and pest-free. But will all the good qualities of pressure-treated wood, come the bad. In the pressure treatment process, an aqueous solution of CCA is applied using a vacuum and pressure cycle, and the treated wood is then stacked to dry. What Grit Sandpaper for Wood Before Painting? This helps prevent decay as well as repulse insects that love to eat wood. Usually, the first thing that you think about when using hardwood or any type of wood for any project is the species of wood that you would use. But the after effect of pressure-treating wood isn’t particularly pleasing to look at. Shop lumber & composites and a variety of building supplies products online at This is especially important when fastening near the end of a board. •If you choose not to stain or paint, then apply clear wood preservative annually to maintain the wood's water resistance. During the process, the mixture of oxides reacts to form insoluble compounds, helping with leaching problems. It's a widely used preservative with a track record of decay resistance going back to when it was introduced in the mid-1940s. Test dryness by sprinkling the wood's surface with water. Wooden posts in contact or buried underground can be affected by moisture. It offers durability, rot resistance and termite protection. Shop pressure treated lumber and a variety of building supplies products online at When left untreated for so many years, wood can rot, develop molds or be infested with wood boring pests. The oil-based sealant should be applied periodically on pressure-treated wood for the entire life of the structure. Pressure-treated lumber is wood that has been immersed in a liquid preservative and placed in a pressure chamber. The look of pressure treated wood is not that attractive so painting or staining it is a must, not only for aesthetic reasons but for health ones as well. How to Remove Duct Tape Residue from Wood, eval(ez_write_tag([[300,250],'cutthewood_com-large-billboard-2','ezslot_5',181,'0','0']));eval(ez_write_tag([[300,250],'cutthewood_com-large-billboard-2','ezslot_6',181,'0','1']));eval(ez_write_tag([[300,250],'cutthewood_com-large-billboard-2','ezslot_7',181,'0','2']));eval(ez_write_tag([[300,250],'cutthewood_com-large-billboard-2','ezslot_8',181,'0','3']));Search. Innovative colour pigment technology gives the treated wood a warm, finished look. Copper is also used in the newest pressure treatment formulas and does not pose threat to health, unlike arsenic. Ground-contact pressure-treated wood: Ground-contact pressure-treated lumber can be used either above ground or in contact with the ground. Does the Type of Lumber Matter for a Woodworking Project? Gear-obsessed editors choose every product we review. The process has been around for over 50 years, protecting wood and wood construction and saving consumers millions of dollars. Chromated copper arsenate was the most common pressure-treated wood until a few years ago, but has now been phased out for most applications because of health and environmental concerns. If you are not a fan of the natural look of pressure treated wood then don´t worry, there are ways to give it some color. Pressure-treated lumber refers to the process of infusing a chemical-based solution deep into or completely through a piece of wood. ACQ and CA are available in a brown or green shade for the exterior residential markets, and they also … "I tell them, no. For example, a typical wood treatment is micronized copper azole; its retention levels are .06 for above-ground use and .15 for ground contact. Find Pressure Treated lumber & composites at Lowe's today. Pressure-treated wood is required whenever you attach framing lumber or furring strips directly to concrete or other exterior masonry walls below grade.. It is long-lasting, has an exceptional strength-to-weight ratio, and it is easily workable with standard tools and skills. Kiln-dried pressure treated lumber: This treated wood type has already passed through the kiln heat to make it moisture- free.So, it would take less time to dry. Today, pressure-treated lumber is treated with a range of inorganic chemicals rather than arsenate. Here are a few extra tips to keep in mind when working with pressure-treated lumber: •Wear gloves when handling treated wood, and wash up thoroughly before eating or drinking. Therefore these should be made from pressure-treated wood since this can resist moisture better. To start, pressure-treated wood is softwood lumber, typically southern yellow pine, that's been chemically treated to resist rot, decay and termites. The International Building Code requires that siding and structural lumber used on the last six inches of the structure above ground should be pressure-treated wood. The new treatment and retention levels provide the same resistance against decay, weather, and insects.". Interior walls are within a climate-controlled environment and are presumed to be free of moisture. Over 70 years ago, Dr. Karl Wolman invented the process of infusingpreservative deeply into wood products. The chemical process which infuses these characteristics, however, can have some undesirable consequences. If you wait for the material to fully dry—and don’t live in Florida during the summer—you may have a fighting chance. How we test gear. Some homeowners are worried about the chemicals that are used, but you can rest assured that the chemicals used are not harmful to … You will have nothing to worry about for as long as you are not touching the wood or exposed to its sawdust then there are no risks at all. A very toxic chemical is used to pressure treat wood and this is dangerous for animals and humans. Take this small amount of shrinkage into account when laying decking or fence boards. Popular Mechanics participates in various affiliate marketing programs, which means we may get paid commissions on editorially chosen products purchased through our links to retailer sites. This number represents the minimum amount of preservative retained in the wood. There are a few things that you can look into the wood to determine whether or not it is pressure treated. The chamber forces the chemical into the wood fibers. •Allow treated wood to dry thoroughly before staining or painting. Which makes this type of treated wood perfect for garden structures like fencing and picnic tables.