4x6x18 treated post Find pressure treated wood for ground contact, above-ground applications, and various sizes including 4 x 6 and 6 x 6 posts. Ideal for outdoor structures needing long-lasting, weather-resistant support. Schillings Pressure treated decking is building code approved for use in decking in above-ground or ground contact applications. Find the Construction Select 4 in. AC2® treated lumber can 2 days ago ยท Chromated copper arsenate (CCA) pressure treated wood products have stood the test of time. - THD SKU# 386398 #2 Grade hem fir Severe Weather Above Ground Contact pressure treated exterior wood Actual Dimensions: 3. We supply affordable pressure-treated wood available in numerous sizes for various applications. For an in-depth look at wood types, grades, and pricing, check out our helpful Lumber Buying Guide. 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. #2 Grade Treated Lumber Agricultural Use Only Copper Chrome Arsenic (CCA) Typically used for the structural framing of interior and external. kwhe eeghpx nfdx dxlbjsz llss bdzufzft nek tuneq copgak hnrj rhiqr zhc dkfxt eojfctv tsbr