A solid core interior door is designed with an interior core made from solid materials, such as hardboard or wood, engineered wood, particleboard or high-density board, or a composite material, rather than a lightweight honeycomb. It combines the appearance of a traditional wood door with the durability and practical benefits of a solid construction. Some benefits of solid core doors are durability, weight, soundproofing, better finish, and premium looks. Our shaker-style solid core doors are made of pine wood, MDF, and high-density board.