#1 Ground Contact Pressure-Treated Lumber is specifically engineered for outdoor construction projects, offering reliable resistance to rot, decay, and insect damage. Surfaced on all four sides for a smooth, clean finish, it is easy to handle and well suited for both professional contractors and DIY users. • Built to withstand demanding outdoor conditions, including moisture exposure and prolonged weathering. • Ideal for applications such as decking, fencing, landscaping, and other exterior projects. • Smoothly surfaced on all four sides for improved appearance and workability. • Treated for enhanced protection against moisture, decay, and pests. • Versatile, dependable, and suitable for a wide range of outdoor uses