Pre-Primed MDF Square Board Moulding S4S Boards
Ready-to-paint MDF moulding with factory-applied primer for a smooth, flawless finish. Precision S4S (Surfaced Four Sides) milling ensures straight edges and consistent dimensions for seamless installation. Ideal for DIY crown molding, wainscoting, door/window framing, and decorative wall paneling. High-density fiberboard core resists warping and shrinking, offering long-term durability. Ultra-fine sanded surface accepts paint evenly without bleed-through. Pre-primed white base reduces prep time, allowing quick customization in any color. Perfect for crafts, furniture trim, and architectural accents. Sold in bulk at unbeatable wholesale prices—stock up for large-scale projects. Low minimum order quantities cater to both small businesses and bulk buyers. Global shipping available.