4" x 4" #1 Southern Yellow Pine Pressure Treated

Pressure-treated Southern Yellow Pine post in a #1 grade - a strong, dense timber treated to resist rot, decay, and insects, ideal for deck posts, fence posts, pergolas, and other exterior structural work. The #1 grade offers good strength and a cleaner appearance for visible posts. Available in a range of lengths.

Key Features

• #1 grade Southern Yellow Pine - strong with a cleaner appearance
• Pressure treated to resist rot, decay, and insect damage
• For deck posts, fence posts, pergolas, and exterior structures
• 4" x 4" nominal profile, stocked in multiple lengths
• Use fasteners and hardware rated for treated lumber (hot-dip galvanized or stainless); allow to dry before painting or staining. For posts set in the ground, verify the board carries a ground-contact (UC4A) rating