1x12 Kiln-Dried SPF Board – S4S, #2 and Better Upgrade your next project with this 1x12 kiln-dried SPF board (Spruce, Pine, or Fir), designed for minimal wane and a smooth, surfaced-on-all-sides (S4S) finish. Perfect for craftsman-style trim, shelving, DIY furniture, decorative woodwork, and art projects, this high-quality board features a #2 and better grade, allowing for tight, small knots while maintaining a clean and attractive appearance. The kiln-dried process ensures enhanced stability reduced warping and improved durability making it an excellent choice for both interior and exterior applications. Available at MDH Lumber - Crofton Lumber in Nebraska and Akron Lumber in Iowa. Available at MDH Lumber - Crofton Lumber in Nebraska and Akron Lumber in Iowa. Fast local delivery available.