Heavy-duty pressure-treated lumber built for outdoor durability and structural strength. This 6x12x12' beam features S4S (surfaced four sides) milling for a smooth, finished appearance and precise dimensions. Grade #2 & Better rating ensures reliable performance in demanding applications. Treated with CAC CD.31 preservative for superior weather and rot resistance, making it ideal for decks, pergolas, fencing, and load-bearing outdoor projects. All-weather rated for long-lasting protection in harsh conditions.