Founded in 1924, Masonite International Corporation is one of the leading manufacturers of interior doors and entry door systems in the United States. Its areas of specialization include product specification, customized design, material handling, on-time delivery and storage services. The company offers selection of doors and windows in a variety of styles, designs and colors. Masonite International Corporation s interior doors feature by-product wood chips that help in sound reduction. It offers services in over 70 countries throughout the world. The company provides Fast-Frame steel frame jamb system that features fire-resistant properties and is used for residential and commercial applications. Masonite International Corporation s Belleville entry system features rot-resistant bottom rails and Specialty glass. The company offers manuals that provide technical information and door maintenance details. It also provides patio, flush, french and louver doors. Masonite International Corporation is headquartered in Tampa, Fla.