Innovation in treated timber products continues to this day, with consumers becoming more interested in less toxic materials. Many lumberyards stock treated wood in the broad category of > or better. Our Natural Select, C-A treated Doug Fir contains no chromium or arsenic. Wood can be impregnated with a variety of preservative chemicals to prevent rot and insect infestation in exterior applications like decks. We stock 2×4-2×12, 4×4-4×6, and 6×6 in a brownish-red tone to better match our redwood and cedar products. 2x8s, 2x10s and 2x12s for joists, stair stringers and beams. Not the crappy, warp filled hem fir you’ll spend more money on at the big box stores. A beat-up, decayed 2x8 covered in knots won’t be as strong as a clean, straight-grained one. Pressure-treated lumber is ideal for outdoor construction as it has a long, useful life span and is much less expensive than alternatives. Knots may not be larger than 2 ¾". It is ground contact rated and is virtually free of wane. Hem-Fir – It is weaker and more prone to warping and splitting than Douglas fir, but more receptive to preservation. It is ground contact rated and is virtually free of wane. 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 forcing waterborne chemicals into the wood under pressure. It is strong and stiff. It is ground contact rated and is virtually free of wane. Most common are: Southern Yellow Pine - Southern pine is the most common deck framing material in the eastern United States. Boards will contain no splits larger than 1.5 times width of board. Severe Weather 2-in x 12-in x 16-ft #2 Prime Pressure Treated Lumber. 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 forcing waterborne chemicals into the wood under pressure. email@example.com, Mon-Fri 7:30am – 4:30pm Durable with an Excellent Finished Appearance . Showing 1 - 10 of 10 items Borates are effective preserva- tives against decay fungi and insects. By clicking GO!, you acknowledge that you have read Trex's, Cedar Decking: Prices, Different Types, Maintenance & More, Redwood Decking: Cost, Maintenace & Types of Redwood, Common Wood Defects: Types & Causes of Lumber Issues, Pressure-Treated Wood: Types, Grading Standards & More, ACQ Alkaline Copper Quaternary (Type B or C), ACQ Alkaline Copper Quaternary (Type A or D), PTI Propiconazole-Tebuconazole-Imidicloprid, SBX Inorganic Boron (non-Formosan termites). It is ground contact rated and is virtually free of wane. Number 1- Will contain no splits larger than the width of the board. If this is the case, you may want to sort through the lumber piece by piece to find clear, straight boards. Treated wood can last more than 40 years. Our Natural Select, C-A treated Doug Fir contains no chromium or arsenic. ACQ is a water-based preservative forced deep into the lumber, usually Southern yellow pine. Model #11629. Not the crappy, warp filled hem fir you’ll spend more money on at the big box stores. It must meet a minimum 1/12-grain slope and have all knots sound encased. Compare; Find My Store. Douglas-Fir is technically not a true Fir (Abies genus), but is in its own genus: Pseudotsuga. 6x6s for support posts and plywood. Treated wood can last more than 40 years. Borate preservatives are salts such as sodium octabo-rate, sodium tetraborate, and sodium pentaborate that are dissolved in water. This category contains our range of Green Pressure Treated Softwood Pergola Kits, a cheaper alternative to our Untreated Larch/ Douglas Fir Pergola Kits. This plywood is then pressure-treated with Sienna Brown Micro-Pro MCA preservative. Project Guide. This can cause significant twisting, cupping, bowing and warping especially in lower-grade boards where knots and uneven grains are already present. It is an incredibly valuable commercial timber, widely used in construction and building purposes. One hole is permitted every 2 ft. Wane corners. When working with pressure treated wood, hot-dip galvanized, stainless steel or corrosion-resistant wood fasteners should be used to protect against corrosion and premature wear. Use Category Brief Description UC1 Interior Dry UC2 Interior Damp UC3A Exterior Above Ground, Coated with Rapid Water Runoff UC3B Exterior Above Ground, Uncoated or Poor Water Runoff UC4A Ground Contact, General Use UC4B Ground Contact, Heavy Duty UC4C Ground Contact, Extreme Duty UC5A Marine Use, Northern Waters (Salt or Brackish Water) UC5B Marine Use, Central Waters (Salt or Brackish Water) UC5C Marine Use, Southern Waters (Salt or Brackish Water) UCFA Interior Above Ground Fire Protection UCFB Exterior Above Ground Fire Protection. Number 2 - Grain slope must meet minimum 1/8 grain slope. Our pressure-treated plywood is all sheathing-grade (CCX), either Douglas fir or CSP, conforming to CSA plywood standards 0121 and 0151, respectively. SYP logs yield a high proportion of sapwood, which works well to absorb preservative. Number 3 - The lowest-quality grade. Span tables will list species separately for this reason. It is possible that some boards will become so deformed that they will be unusable. Hazards. Red and Ponderosa Pine - Less strong than SYP, found in northern U.S. and Canada. The tree itself grows to be very large, and yields a large amount of usable lumber and veneer for plywood. In spite of its shortcomings, ACQ-treated wood holds up well. Copyright © 2020 Trex Company, Inc. All rights reserved. Hands down the best pressure treated Doug Fir on the market. 510.525.1906 Albany, CA 94710 Be sure to obtain wood treated for the application you have in mind. Premium - Highest grade for ¾ radius edge decking. Pressure-treated wood has gone through a process that uses high pressure to force a solution of water and preservative agents deep into the lumber to help extend its useful lifespan. Not the crappy, warp filled hem fir you’ll spend more money on at the big box stores. Sat 9am-3pm x 8 ft. #2 and Better Kiln-Dried Heat Treated Spruce-Pine-Fir Lumber (100) Model# 0200352 $ 8 82. The grades provide a tighter presumption of the structural performance of each piece. Select - The highest grade available, contains very few detects. Hands down the best pressure treated Doug Fir on the market. Grade is a description of the quality of a given species. Knots, decay, grain angle, wane, damage, warp and other physical characteristics of an individual piece of lumber distinguish it into a specific grade. Not suitable for deck construction.
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