This timber has been pressure treated for critical structural (CS) applications, such as posts for post frame buildings, decks, porches, pavilions, pergolas, and gazebos. Many municipal and state building codes require this critical structural treatment when posts in a structural application are put into the ground. Critical structural significantly out performs wood treated to ground contact end use. This timber can be completely buried in the ground or submerged in fresh water.<br><br><br>AC2® CedarTone premium is truly a premium product. Pressure treated for critical structural (CS) applications this product can be completely buried in the ground or submerged in fresh water. It has all the benefits of AC2® brand pressure treated and more! AC2® CedarTone lumber is prefinished - infused with a rich color, similar to coastal western cedar, it provides pleasing aesthetic performance for the first two years following completion of the outdoor project. After several weeks of outdoor exposure, the product will change to a lighter, more natural color. AC2® CedarTone Premium treated wood products will maintain this cedar like color when natural cedar wood has faded to a gray color. In addition, it is treated with a higher level of preservative and a factory-applied water repellent to ensure your project will last longer.