The strong horizontal and vertical elements of Masonite’s solid core Hamel interior door can be left white or can be customized. Doors offer a primed hardboard finish and are available with a renewable wheat straw core or with a 20-minute fire rating. Matching bi-fold doors can also be ordered. Cost: $119 for a solid core pre-hung unit. Masonite, 800.663.3667, masonite.com