Pre-finished solid core wood door is an ideal solution for builders and homeowners who are looking for high-quality pre-finished doors with a solid wood core at attractive prices. The finish is a white and ideally smooth material imitating a painted surface. We have incorporated elements of high-tech industry and technology into the outstanding design features of the Optima doors. This is a wood fiber mixed in with polyurethane resin and wax to secure a high level of sound and thermal insulation