The kiln drying process removes the excess moisture from the wood and makes it less subject to cracking, warping, and graying. This grade should be used for railings, seating, and trim. If necessary, there are other even more sophisticated finishes available which you can ask us about. Foundation lumber that is properly treated to this level will last virtually forever. However, it is important to remember that the grade of finish of the timber needs to be specified separately.
Pressure treated lumber is an excellent material for piers and bulkheads.
The chemical bond with the wood is so strong that scientific studies have shown no chemical leaching from the wood even when it is immersed in salt water for years, so it is safe for marine organisms. Property owners can use pressure treated barn poles, corral fencing and timbers with the full confidence that they will provide extended service even in the tough rural environment. It is interesting to note that the environmental advantages of CCA pressure treated wood products are numerous. Wood is a renewable resource that takes only a small amount of energy to produce, and the pressure treatment saves an estimated 360,000 acres of timber each year that would need to be cut just to replace rotten wood. For your next project choose CCA pressure treated wood, and with the proper attention to the grade and finish of the wood, you will be assured a rewarding and long-lasting structure.