HVP offers engineered Raised Panel, Flat Panel, and French Glass interior doors in five natural wood species (Oak, Maple, Cherry, Birch, Poplar). An MDF (Medium Density Fiberboard) series is also sold under the "Woodport" brand name, as well as an O.E.M. product to select private label customers. HVP's door products utilize select North American hardwoods and veneers and environmentally-friendly engineered substrates.