Menu Lumber SCROLL DOWN Allweather Wood preservative treated lumber is as strong as it is versatile. No matter what you’re building, it’s going to have to face the natural elements. It’s a non-stop, never-ending battle against decay, fire, mold, and termites. It takes a special kind of lumber to stand up to this onslaught and win. It takes Allweather Wood preservative treated lumber, ready for whatever nature brings your way. Allweather Wood lumber is available in a range of species and preservative treatments for a wide range of commercial and residential applications. And, because the preservative treatment process extends the useful life of wood, structures made with Allweather Wood lumber remain in service for many years. Above Ground Allweather Wood above ground preservative treated lumber may be used for a wide range of end use applications fully protected from the weather. Beams Deck boards and rails Fascia and trim Interior framing Joists Porch flooring Rafters Roof trusses Sill plate Studs Please Contact Us to learn more. Ground Contact Allweather Wood ground contact preservative treated lumber digs deep for long-lasting performance. Best for building applications that require contact with the ground, such as burying posts in soil or setting them in concrete. Other ground contact applications may include: Deck posts and substructure Garden edging Landscaping structures Retaining walls Structural lumber Structural posts Walkways Wood foundations Allweather Wood ground contact preservative treated lumber meets requirements of model building codes for many applications and is treated to the standards of the American Wood Protection Association (AWPA). Please Contact Us to learn more. Fire Retardant Treated Allweather Wood fire retardant treated lumber is highly effective at controlling the spread of flame and smoke, increasing evacuation time and potentially reducing damages and repair costs caused by fire. Allweather Wood fire retardant lumber exhibits a flame spread and smoke developed index of 25 or less under ASTM E84 surface burning characteristics in tests of 30-minute duration without evidence of significant progressive combustion. The product meets all U.S. major model building code requirements. Allweather Wood fire retardant treated lumber can be used in the following interior applications: Beams Blocking Floor joists Interior partitions (non-load) Roofs and attics Sill plates Steps and stairways Walls and wall assemblies Allweather Wood fire retardant treated lumber is backed by a 50-Year Limited Warranty. UL GREENGUARD Gold Certification ensures the product meets stringent standards for low volatile organic compound (VOC) emissions. Products certified to these criteria are suitable for use in sensitive environments such as schools, healthcare facilities, hotels, and multi-family construction projects. Please visit our Resources/SDS page for additional information on specific preservatives available. You may also Contact Us to learn more. Superior KDAT Low humidity climates in Colorado, New Mexico, and Wyoming present challenges to products used in exterior applications. Superior KDAT by Allweather Wood starts with high grade lumber selected for appearance and low wane. Graded by a patented, computerized system, Superior KDAT lumber is manufactured to remain consistent and predictable. Each board is stamped with an arrow indicating the direction the board may crown, allowing builders, contractors, homeowners, and others to build with confidence. Why choose Superior KDAT by Allweather Wood? Reduced crowning and joists that crown in opposite directions Minimized length and width shrinkage Joists pulling away from the house or other structure Significantly lighter and easier to handle than regular preservative treated lumber Covered by a Limited Six-Month Consumer Warranty Please Contact Us to learn more. Redwood Lumber FSC certified Humboldt Sawmill redwood lumber is available in 1-inch and 2-inch dimensions in lengths from 6–20 feet. Available finish characteristics include rough, surfaced four sides (S4S), and surfaced one side two edges (S1S2E). Available grades include Construction Common, Construction Heart, B Grade, Clear, Heart B, and Heart Clear. Please Contact Us to learn more. FIND A RETAILER OR LUMBERYARD NEAR YOU TREATED WOOD USAGE Preservative Treated Wood Usage and AWPA Standards LEARN MORE Follow Us Facebook Twitter YouTube LinkedIn FOOTER Decking Fencing Lumber Plywood Poles & Round Stock Timbers RESOURCES / SDS TREATED WOOD SAFETY TREATED WOOD USAGE FOOTER BOTTOM MENU WHERE TO BUY TERMS OF USE PRIVACY POLICY SUPPLY CHAIN TRANSPARENCY CAREERS CONTACT