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  2. Masonite International - Wikipedia

    en.wikipedia.org/wiki/Masonite_International

    Headquartered in Tampa, Florida, Masonite employs more than 10,000 people worldwide, and is the only door manufacturer to serve both the residential and architectural markets. [citation needed] Today, many of Masonite’s interior and exterior doors are conceptualized at the Masonite Innovation Center (MIC) located in West Chicago, Illinois ...

  3. Fire door - Wikipedia

    en.wikipedia.org/wiki/Fire_door

    Fire-resistance rated door, with wire mesh glass vision panel Industrial grade fire door rated to hydrocarbon curve and blast resistance Double fire door immediately after 3-hour fire test inside a 4-hour rated Durasteel wall Double fire door after 3-hour fire test in a 4-hour Durasteel wall, during successful 45PSI (3.1 bar) hose stream test leading to a UL Listing [1]

  4. Masonite - Wikipedia

    en.wikipedia.org/wiki/Masonite

    Masonite board Back side of a masonite board Isorel, c. 1920 Quartrboard, [1] Masonite Corporation, c. 1930. Masonite, also called Quartboard or pressboard, [2] is a type of engineered wood made of steam-cooked and pressure-molded wood or paper fibers. The fibers form a stiff, dense material in a range of weights.