8x8x20 pressure treated post

0 Reviews. Untreated, fresh from store ~15% Untreated, wet ~30% Untreated, very dry ~5% Untreated, avg equilibrium for interior wood in US ~8% Treated, fresh from store ~35-75% RESULTS Total Weight (Lbs) Basic Specific Gravity Specific Gravity @ Specified Moisture Content Density (Lbs/cubic foot) $22.29. Email example@example.com Subscribe Now! Amanda Mary Smith, Your timbers can be custom selected for higher grade (meaning more strength) or better appearance. They may even outline your favorite flower bed. HOME IMPROVEMENT OUTLET is a registered trademark. Custom cutting and drilling are also available. Pressure treated wood is lumber that's been infused with a solution of water and chemicals to make it resistant to rot and insects. Building Products Plus supplies treated posts throughout Texas and Louisiana. . Bandsaw finish removes any discolouration and provides a clean surface for your project. ); Utility Poles Poles are Southern Yellow Pine and graded in accordance with ANSI 05.1, AWPA UC4C, treated to .60 lbs p.c.f. For other Pressure treated fence rails should be AWPA grade UC3B if left unpainted, grade UC3A if painted or finished with an opaque stain. to search by sku (e.g. Actual Dimensions: 7-1/2 x 7-1/2 x 16 })(); Contractor We have over 100 sizes and lengths available along with a variety of treatment retentions and chemical preservatives. Use Current Location. Gulf Coast Lumber with locations in Houston, Texas, and the Central American Country of Costa Rica supplies Long Life Wood Products such as pressure treated laminated beams, pressure treated timbers, utility poles, marine pilings . Clear Skin Remedies For Sensitive Skin, If you are putting a board in direct contact with soil it's best to use the highest number available in your area to get the longest life from the wood. Our treated lumber products are pressure treated to prevent decay and rot in situations where the lumber is exposed to the elements. Southern Pine Lumber Company is one of Florida's largest suppliers of Pressure Treated Lumber, Timber & Piling as well as Composite Decking and currently has 9 convenient locations throughout the State of Florida. AC2 6 x 6 x 14' #2 Critical Structural Green Pressure Treated Timber AC2 6 x 6 #2 Critical Structural Green Pressure Treated Timber at Menards Skip to main content Uh-oh. 56-26). Our goal is to be the most dependable, efficient and professional supplier of quality building materials in the Chicagoland area as well as online. Same Day Delivery - Building Materials - Flooring - Interior FinishesPaint - Lighting - Kitchen & Bath - Windows & Doors - Window Treatments Events and Specials >> House to Home provides a comfortable venue for hosting a variety of events including open houses, educational seminars, homebuilders Association meetings com Main Content Overview Recommendations Carousels From The Manufacturer Footer 6x6x14 #2 SOUTHERN YELLOW PINE TREATED Item # 5747 Model # LBR-5747 Image displayed is not an image of the actual product. Decking Pressure Treated Lumber at Lowes. Item: #2836-084. Online Only! 8x8 PRESSURE TREATED GATE POST/ 200X200x2400mm TREATED TIMBER . Unclassified cookies are cookies that we are in the process of classifying, together with the providers of individual cookies. 7 to 12 inch diameter railroad ties (all show use but structural integrity intact, $5 to $11) and "Blackjacks" (former utility p 6x6 TREATED CCA .60 approved for structures such as pole barns, etc(much better treatment than the MCA treatment found in most stores)8' = $46 each10' = $57 each12' = $69 each14' = $77 each16' = $92 each **best seller**20' = $160 each8x8 ROU All are used posts, mostly 8 foot wood and 7 foot steel, recently removed from vineyard and sorted. 95 8x8x20 Pressure Treated PT8822 $227. Speak with a live salesperson by calling: American Pole & Timber suppliestreated posts throughout Texas and Louisiana. The chemicals used to treat the pressure treated wood sold at McCoy's include copper, a natural element, and a small amount of tebuconazole, a fungicide. We have, 2x4x8ft $6.57 2x4x20ft $16.47 2x6x10 $12.88 2x6x12 $16.41 2x6x16 $21.88 Analytics cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously. Cobb Lumber has been supplying private and professional customers with first rate lumber, timbers, utility poles, wood fence posts, pilings, and erosion control products since we opened our doors in 1978. MCA Treatment Retentions Are Available In: MCA .06 MCA .15 MCA .23 CCA Treatment Retentions Are Available In: Delivery Available. *All Lumber is subject to allocation. 0.60 CCA treated; End tagged; Kiln dried before treatment Pressure treated posts should be rated for ground contact AWPA grade UC4A for general purpose or UC4B for heavy duty. 6x6x14 Treated Post Lowes1X6X12 Reversible Profile Southern Yellow Pine. As our customer, you should come to expect only the highest level of service from Schillings. x 8 ft. STIX Engineered Structural Wood Timber com best in outdoor building materials 12x12x14 Western Red Cedar (WRC) Lumber, Rough Sawn APP Grade, Green Ground Shipping Arrives between 8132022 to 8172022 Reno Carson is . Item #1630377. forms: { 8x8x18 Pressure Treated PT8820 $198.95 8x8x20 Pressure Treated PT8822 $232.75 8x8x22 Pressure Treated PT8824 $257.95 8x8x24 Pressure Treated PT8826 $306.95 8x8x26 Pressure Treated PT8828 $349.75 8x8x28 Pressure Treated Southern Yellow Pine 2612TG $7.72 2x6x12 Tongue and Groove Pine SYP1410 $2.89 1x4x10 Southern Yellow Pine SYP1412 $4.19 x 8 in. The price is $225 and I can load them onto your trailer for you. Please select finish: 8" x 8" - 16' Douglas Fir #1 & BTR - Bandsaw Finish. callback: cb Land & Fresh Water Foundation Piling With a wide range of diameters and lengths available, no project can be too large for Southern Pine Lumber Company. This lumber has been pressure treated for critical structural (CS) applications. retention of CCA. MicroPro Sienna 6 x 6 x 16' Pressure Treated Wood Post . We have all the treated wood products for your next project. Save my name, email, and website in this browser for the next time I comment. Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. Learn more about custom cutting & drilling. We use cookies to ensure that we give you the best experience on our website. The chart below includes most available treated post sizes. Treated for ground contact applications, they support your deck, gazebo, and fence. What if you could finish your project a day early? Treated lumber is critical to the performance and safety of an entire system or construction such as deck joists, beams, and ledger boards. A 4-by-12-inch board that is 16 feet long weighs 224 pounds. The price below is for 1.8m x 75mm x 75mm. This site uses different types of cookies. We will accommodate your needs for any level of treatment. PRESSURE TREATED ; 8X8X20 #2 RGH GROUND CONTACT PT; 8X8X20 #2 RGH GROUND CONTACT PT. Clients report huge savingsafter they figure the expenses of on-site labor, equipment rentals, and other expenses associated with on-site materials modifications. Let us pre-cut your components for you, saving you valuable time and labor! This item is ProWood FR fire-retardant pressure-treated wood products are backed by Though restricted from use in residential applications, it's still widely accepted in the building industry as the material of choice for post frame buildings. Treated "Rough" Lumber. Buying materials from American Pole & Timber means you will build with the best materials and ourcustom manufacturing capabilities provide you with more options for designs and solutions. Save time and money on the job site by ordering your treated posts pre-cut and pre-drilled according to your specifications. *Poles and posts taper approximately 1" in diameter per ten feet of length. Schillings Pressure treated decking is building code approved for use in decking in above-ground or ground contact applications. ARNO Fast Change (AFC) system is a revolutionary system for CNC Swiss machines. Pressure-treated timbers are treated for protection against termites and rot. 8 foot treated pine posts from 3 1/2 to 8 inch diameter, $5 to $10 each. Please chat for more details. 12.00 postage. Post heights are based on standard precut stud heights and associated top plate heights. } Pressure Treated Dimensional Timbers Beautiful basics. TREATMENTS AVAILABLE INCLUDED: CREOSOTE, PENTA AND CCA. Gulf Coast Lumber with locations in Houston, Texas, and the Central American Country of Costa Rica supplies Long Life Wood Products such as pressure treated laminated beams, pressure treated timbers, utility poles, marine pilings, treated lumber, timber trusses, wood bridge materials and polymer vinyl coated materials. some are .25, some .50 and some as high as .60. By removing the moisture from the wood before they are pressure treated (with water-borne preservatives)the preservatives can reach further into the fibersof your treated posts for better penetration and more effectively treated wood. Marketing cookies are used to track visitors across websites. Barn Poles are measured as fence posts and are available in either a .40 or .60 lbs p.c.f. We'll assume you're ok with this, but you can opt-out if you wish. JavaScript seems to be disabled in your browser. SKU#: 8820PT ; . Kitchener / Waterloo 23/02/2023. Give us a call at (281) 670-8631 or contact us online to discuss your project. Request our free guide for choosing the right piling for your project. Perfect for outdoor use. Avoid peeler cores when selecting 4" x 4" x 8' fence posts. It does not enable us to access any other information or allow us to view your computer and the data stored in it. Grade : Lumber grades indicate number of knots and imperfections in the wood and the straightness of the grain. Pressure Treated 8x8x20 (acme) $800. Preserve })(); Contractor Fill out a simple request form and we'll send you our free Wood Pilings Guide in the mail. 8X8X20 #2 RGH GROUND CONTACT PT . ACQ treated posts are readily and quickly available upon your request. This is not smooth, pieces are rough to the touch. If your posts will be located near water or in an area where standing water is common we may recommend that you treat your posts to .60pcf for increased longevity. I compare wood quality, selection and price at three major home centers. 5/4 x 6 Premium Deck Above Ground Micronized Copper Azole Treated Lumber, 2 x 6 x 18' #1 Above Ground Micronized Copper Azole Treated Lumber, 2 x 6 x 20' #1 Above Ground Micronized Copper Azole Treated Lumber, 5/4 x 6 x 8' STD Deck Above Ground Micronized Copper Azole Treated Lumber, 5/4 x 6 x 10' STD Deck Above Ground Micronized Copper Azole Treated Lumber, 5/4 x 6 x 12' STD Deck Above Ground Micronized Copper Azole Treated Lumber, 5/4 x 6 x 14' STD Deck Above Ground Micronized Copper Azole Treated Lumber, 5/4 x 6 x 16' STD Deck Above Ground Micronized Copper Azole Treated Lumber, 5/4 x 6 x 8' Premium Deck Above Ground Micronized Copper Azole Treated Lumber, 2 x 6 x 16' #1 Above Ground Micronized Copper Azole Treated Lumber, 2 x 6 x 14' #1 Above Ground Micronized Copper Azole Treated Lumber, 2 x 4 x 12' #1 Above Ground Micronized Copper Azole Treated Lumber. (function() { event : evt, These large beams work nicely for columns, headers and exposed beam applications for both new construction and remodeling. Search Results for "6x6 timber" at Menards. 200post. For above-ground use, wood with 0.25 pound of preservative per cubic foot is adequate, but wood that will be in contact with the ground, such as that used for fence posts, pergola posts or deck posts, should contain 0.4 pound per square foot. Preference cookies enable a website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in. Ideal for a variety of applications including decks, play sets, landscaping and other outdoor projects where lumber is exposed to the elements. Homeowner, 8900 Wicker Ave. (US 41), St. John, IN 46373, 175 W Lincolnway, Suite D, Valparaiso, IN 46383, 2023 Schillings. CCA pressure treated wood that was installed as far back as the 1940s still remains in serviceable condition today. Treated lumber is critical to the performance and safety of an entire system or construction such as deck joists, beams, and ledger boards. Find the right pressure treated wood for your renovation project at the Home Depot Canada. 5 STEP STRINGER TREATED Created from 2x12 pressure treated lumber - stronger and better! By removing the moisture from the wood before they are pressure treated (with water-borne preservatives) the preservatives can reach further into the fibers of your treated posts for better penetration and more effectively treated wood. Pressure treatment is an affordable alternative to expensive naturally rot-resistant lumber. Product Overview Description. For all other types of cookies we need your permission. The WORST home centers for wood (Home Depot vs. 6x6x14 #2 SOUTHERN YELLOW PINE TREATED at Lowes. Schillings Pressure treated decking is building code approved for use in decking in above-ground or ground contact applications. Pilot Lumber We carry Pressure Treated Post from 8' to 24'. Polymer Coated Treated Posts Coating your treated posts at the ground line with our special polymer wood coating protects your treated posts at the area most susceptible to attack by moisture and wood-boring insects. Also, check out ourcustom manufacturingpage. Whether you need a single bundle or multiple truckloads, we can deliver your needs. Treated LumberTimber TrussesHardwareCorbels & Rafter TailsBridge MaterialsCustom Production. The law states that we can store cookies on your device if they are strictly necessary for the operation of this site. 8820PT LUMBER & WOOD PRODUCTS PRESSURE TREATED 8PT 8X PRESSURE TREATED NORTHEAST TREATERS MFG PART#: Close Site Menu Close Navigation. (i.e. 27 m) Type Treated wood Utilization Outdoor Thickness. This T-post fence item also repels insects. 2 x 10 x 10 #2 Construction Grade Lumber, Ideal for exposed structures, sill plates, decks, docks, ramps and other outdoor applications, In stock and ready for local delivery or in store pickup. This timber can also be painted or stained. Pressure Treated 4x8 Posts American Pole & Timber supplies treated posts throughout Texas and Louisiana. Pressure treated lumber products, such as YellaWood brand products, are treated in a pressurized cylinder. 01 Sets within 15 minutes. Get Pricing and Availability . Lengths from 6-1/2 to 65 are available. Call our friendly and knowledgeable project consultants at (800) 816-0335 TOLLFREE or contact us online for a quote on your treated posts. Serving Professional Builders since 1932. . 17 Post available. Add To Cart. Southern Pine Lumber Company is one of the largest suppliers of Marine Pilings, Foundation Poles, Utility Poles, Fence Posts and Barn Poles in Florida. We stock Southern Yellow Pine #2 and better. retention of CCA depending on the size. Pressure treatment is a way of preserving wood to extend its useful life and increase its durability. Our trusted delivery services can save your company time and money. As our customer, you should come to expect only the highest level of service from Schillings. For all other types of cookies we need your permission. 7 to 12 inch diameter railroad ties (all show use but structural integrity intact, $5 to $11) and "Blackjacks" (former utility 8x8x20 CCA Treated Pine Post - $200 (Thomson, Georgia), 8x8x20 Foot - Large Pine Beams - $225 (Mount Enterprise Texas), 6x6 CCA TREATED for Pole Barns, etc - $1 (Flomaton), USED POSTS, 8 ft Treated Pine, Cedar, 7' steel T, RR ties, utility pol - $5 (SCOTTDALE ROAD BERRIEN SPRINGS, MI 49103), USED POSTS, 8 ft Treated Pine, Cedar, RR ties, utility pol - $5 (SCOTTDALE ROAD BERRIEN SPRINGS, MI 49103), 6x6 and 8x8 CCA TREATED for Pole Barns, etc - $1 (Flomaton), USED POSTS, 8 ft Treated Pine, Cedar, 7' steel T, RR ties, utility pol (SCOTTDALE ROAD BERRIEN SPRINGS, MI 49103). They are Southern Yellow Pine and available in both MCA and CCA in a multitude of treatment retentions. Your posts can be kiln dried before treatment. Cheaper than standard 100mm fence posts with minimal size difference. 16. CCA pressure treated posts are the standard posts supplied from American Pole & Timber. Call our project consultants at 1 (800) 716-0636 orcontact us onlineto learn how we can save you time and money. Marine timbers can also give your waterfront a more natural look. 95mm x 95mm fence post. } Description. Some cookies are placed by third party services that appear on our pages. Poly coated posts are guaranteed for 25 years against attack by wood-boring organisms. AC2 brand treated wood products use MicroPro technology, which is a revolutionary way to pressure treat wood for decks, fences, landscaping, and general construction uses. Analytics cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously. DIFFERENT TREATMENT RENTENTIONS ARE AVAILABLE FOR THE INTENDED USE. Treated Wood Posts Treated Wood Posts Contact Us Today Building Products Plus supplies treated posts throughout Texas and Louisiana. (i.e. The preservatives provide protection against rot, insects, mold, and fungi, so the wood lasts longer. } We look forward to working with you. Usage Dimensions Finishing Options Drying Options Hewing Options Available Species Grade Options Beam Sizing Lead Time Shipping Options Price Changes Takeoffs Get In Touch We offer detailed beam estimates, so please call us at 800-299-8981 or email us at sales@twincreeksloghomes.com with the specifics of your project. . window.mc4wp.listeners.push( Southern yellow pine. Buy Pressure Treated Timbers and get the best deals at the lowest prices on eBay! Contact us online or call (800) 816-0335 TOLLFREE to get a quotefor your treated posts. Our products are manufactured within requirements for American Wood Preservers' Association (AWPA), American National Standard . Need a 1616 treated timber? Clients report huge savings after they figure the expenses of on-site labor, equipment rentals, and other expenses associated with on-site materials modifications. Whether you are building a restaurant,wood bridges,ropes course, support saddles, ortreated fender systems; weare acustom manufacturerand can produce the materials you need if you cannot find them -- such as: We specialize in supplying large and oversized treated timbers used for marine and shoreline construction, farm and ranch, and commercial and industrial applications. Ground contact, Lumber size is nominal PRICE: $26.97 . *All Lumber is subject to allocation. event : evt, 8x8x20` CCA Treated Pine Post. Pressure-Treated Southern Pine Timber is ideal for a variety of applications including decks, play sets, landscaping, stair support and walkways and other outdoor projects where 8x8 post 6 x 6 x 12 6x6x14 2 pressure treated timber 6x6x12 pressure treated 8x8 pressure treated railroad ties. Your posts can be pressure treated withChromated Copper Arsenate (CCA) or Alkaline Copper Quat (ACQ). Get the latest updates on sales, events, new product releases, and much more by subscribing to our Homeowner or Contractor Email List today. 7 to 12 inch diameter railroad ties (all show use but structural integrity intact, $5 to $11) and "Blackjacks" (former utility All are used posts, mostly 8 foot wood (limited supply) recently removed from vineyard and sorted. We do our best to keep these up to date, but the price can change daily depending upon availability. Avoid peeler cores when selecting 4 x 4 x 8 fence posts. MicroPro Sienna Treated Wood uses the only wood preservative technology that is low VOC and certified as an Environmentally Preferable Product. MFR #: 120-124. Our treated lumber products are pressure treated to prevent decay and rot in situations where the lumber is exposed to the elements. The weight of pressure-treated lumber varies depending on the size of the boards. Lowe's Severe WeatherTreated Wood with Ecolife. 14 viewed per day. Helpful Tip: Sizing for Dimensional lumber, plywood, and sheet goods is often referred to by the nominal size, not the actual size. Schillings Pressure treated decking is building code approved for use in decking in above-ground or ground contact applications. Some of it is so wet from the pressure treating that it "splashes" when you nail it. The data gathered will be used solely for statistical analysis and will be automatically deleted from our system. We supply building projects all across the country. Pressure Treated 8x8x20 (acme) $800. 8x8x20 pressure treated post. 1x6x12 Standard Profile Southern Yellow Pine (Special Order Item) SYP1612REV. Large Saw-Cut Timber: Quick Facts Various pressure treatments are available for different applications $200/post Report Similar Items - 8x8x20 CCA Treated Pine Post - $200 (Thomson, Georgia) 6x8 CCA pressure treated cylinder fence post,40/Bundle. AC2 6 x 6 #2 Critical Structural Green Pressure . Pressure treated lumber has different ratings. { Need specific product information for your project? cedar, redwood, and other hardwood timbers, CCA -- most effective for marine & foundation applications, CA -- ground contact & above ground applications, MCA -- lighter color, for ground contact & above ground applications, Creosote Poles -- utility poles & industrial applications, Penta Treated -- utility poles & industrial applications, Available in #2 and Better and select grades, Timbers are strong and are excellent for structural applications, >Custom cutting available for your treated timbers, Our Extended Life materials are available with the, Rough timbers are full size (may have some dimensional variance), Available in Southern Yellow Pine and other species upon request, Cost-effective for structural repair, replacement, or expansion of any wood structure, Can be used both structurally and decoratively, We can custom manufacture any shape or size you require, We can cut corbels to custom specifications, We can pressure-treat timbers to your specific needs. The heaviest treated lumber I've used has still floated. It is treated to protect against termites, fungal decay, and rot. Call (800) 816-0335 orcontact us online. to search by sku (e.g. Ground Contact Pressure-Treated Premium. Treated Timbers are approximately 6.5'x8"x8" starting at $15 each. listeners: [], } This N0600802 Treated Wood Post helps to prevent deterioration of wood. Treated lumber is critical to the performance and safety of an entire system or construction such as deck joists, beams, and ledger boards. sku:1234, sku#1234) 3 characters minimum and maximum of 100 These cookies only give us the information you provided. 2-in x 8-in x 8-ft Brown Pressure . forms: { Properly treated posts should last at least a decade depending upon the ground conditions and climate where they are installed. Treatment helps to prevent deterioration of wood 20kg quick setting ready mix post mix. Learn more about custom cutting & drilling. #2 Grade for construction purposes, will contain moderately sized knots. Save time and money on the job siteby ordering your treated posts pre-cut and pre-drilled according to your specifications. Compare Add to Lists Add to Gift Registry Ship To Store - Free! 4-in x 4-in x 10-ft Brown Pressure Treated Post/Lumber. D Solid Wood Pergola stands on laminated posts with decorative post . (function() { Home Improvement Outlet is stocking a HUGE selection of high-quality Pressure Treated Post s in our Pressure Treated Lumber selection. Homeowner, 8900 Wicker Ave. (US 41), St. John, IN 46373, 175 W Lincolnway, Suite D, Valparaiso, IN 46383, 2023 Schillings. This lumber has been treated with CCA (chromated copper arsenate), treated to 0.60 pounds per cubic foot and is end tagged. All fence posts are treated to .40 lbs p.c.f. You can find these T-posts in bulk in most stores. CCA pressure treated posts are the standard posts supplied from Building Products Plus. Please call 519-894-2722; no Kijiji messages please. AC2 8 x 8 x 16' Critical Structural Green Pressure Treated Rough Sawn Timber (Nominal Size 8 x 8 x 16') Model Number: 1113032 Menards SKU: 1113032 Final Price $ 204 69 each You Save $25.30 with Mail-In Rebate Qty: SELECT STORE & BUY Additional Packaging/Handling Charges May Apply. 8x8x20 pressure treated post keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website Pressure-treated pine is less likely to decay if planted in soil, so the posts often last longer. We'll assume you're ok with this, but you can opt-out if you wish. 8x8x20 CCA Treated Pine Post - $200 (Thomson, Georgia) View larger image Ad id: 601195894955405 Views: 2920 Price: $200.00 8"x8"x20' CCA Treated Pine Post. Enter your Zip below to check Shipping Availability! Learn from our team as they answer some of our customers' most frequenly asked questions. Need specific product information for your project? Need specific product information for your project? Sizes shown below are a selected sample; our timbers are available in almost any dimension and length. Build your ultimate outdoor oasis with environmentally certified MicroPro Sienna so you can rest easy knowing your project will withstand the challenges thrown by Mother Nature. Compare products, read reviews & get the best deals! Dimensional exterior grade micronized copper pressure treated southern yellow pine. Pressure Treated Natural Green 3 X 3 Timber Fence Posts. Cookies are small text files that can be used by websites to make a user's experience more efficient. It is treated to protect against termites, fungal decay, and rot. All Rights Reserved. Addison Osta Smith, Prices plus HST. We now offer a reference guide for selecting the right pilings for your project. We can ease your on-site workload and pre-manufacture custom components for your project. These 8 ft. T-posts has a diameter of 6 in., and can be bought in bulk at a discount. Privacy Policy - Terms & Conditions - Online Return Policy - Disclaimer - Do Not Sell My Info - My Account, This website uses cookies to improve your experience. Retail Sales888.365.6005|Online Sales 866.910.0783, Be the first to review 8 x 8 x 16 #2 Pressure Treated Lumber. Allweather Wood pressure treated lumber offers a broad assortment of products through its application series: Air, Fire, Earth, and Water. Class 1 75' 80' 6 x 6 x 20' #2 Treated Post. Your posts will be coated about one foot above and below the expected ground line. Call our project consultants at 1 (800) 716-0636 or contact us online to learn how we can save you time and money. Site By Builderwire. Properlytreated posts should last at least a decadedepending upon the ground conditions and climate where they are installed.

8x8x20 pressure treated post 2023