1/2" x 5-1/2" S4S Pine (D4PRF) – Primed Finger Jointed is a wide, smooth-planed board designed for versatile interior trim and millwork applications. Surfaced on all four sides (S4S) for clean, square edges and a uniform finish, this board is ideal for paneling, built-ins, shelving, fascia details, and custom trim build-ups. The generous 5-1/2" face width provides excellent coverage for accent walls and architectural features, while the 1/2" thickness offers a lightweight, easy-to-install solution. Manufactured from primed finger jointed pine for improved straightness and dimensional stability, the D4PRF arrives paint-ready to streamline installation in both new construction and remodeling projects.