4 x 4 in. 16 ft. Treated Lumber - #2 Grade durable and reliable wood that is for a variety of outdoor projects. This treated lumber is designed to withstand the elements, making it i for decks, fences, and other construction needs where strength and longevity are essential. The #2 grade ensures good quality with minimal knots and defects, providing a solid balance of performance and value. Whether you are building a sturdy framework or enhancing your outdoor space, this treated lumber is a dependable choice.