Is Masonite still used?

Yes, Masonite is still used extensively, but primarily for interior and exterior doors rather than for siding, which was discontinued. Masonite International is one of the largest door manufacturers in North America, and Masonite branded doors are used in millions of homes. Masonite interior doors, which are molded hardboard doors with MDF skins over hollow or solid core, are the most common interior doors sold at Home Depot, Lowe's, and builders supply, used in almost all new construction tract homes because they are affordable at 100 to 300 dollars. Masonite exterior fiberglass and steel doors are also still used for entry doors. Masonite hardboard material itself is still used for other applications like floor underlayment, concrete formwork, paneling, and craft projects, sold as hardboard at lumber yards. However, Masonite hardboard siding is no longer used for new construction due to past rot issues and lawsuits and has been replaced by fiber cement and engineered wood. So Masonite as a company and door brand is still very much used, with over 10,000 employees and billions in revenue, and Masonite doors are still the standard interior door in North American homes. The name Masonite is still used daily by contractors, builders, and homeowners when referring to molded interior doors, even if they do not realize it is a brand name, similar to Kleenex.

Yes, Masonite is still used, though not for exterior siding which was discontinued in 2001, Masonite brand and generic hardboard is still widely used for interior doors, interior paneling, furniture, and construction applications, with Masonite Corporation now largest interior door manufacturer globally. Masonite was invented in 1924 by William H Mason, made from wood fibers steam-cooked and pressed with resin under high pressure, forming hardboard, and original exterior siding made from Masonite hardboard was popular in 1980s but failed due to moisture swelling and rot, leading to lawsuits and discontinuation of exterior siding in 2001. However, Masonite hardboard is still used extensively for interior applications, including interior hollow core and solid core doors, where Masonite is market leader with molded door skins made from hardboard, sold at Home Depot and Lowe's as Masonite interior doors. Masonite hardboard panels are still used for interior wall paneling, pegboard, furniture backing, drawer bottoms, and craft projects, sold as hardboard sheets 4x8 feet in 1/8 and 1/4 inch thickness. In construction, hardboard is used for concrete formwork, floor underlayment, and protection boards. Engineered wood siding similar to Masonite concept like LP SmartSide is still used for exterior, using wood strands with wax treatment for moisture resistance, considered successor to Masonite siding. So Masonite is still used for interior doors, interior hardboard panels, furniture components, and similar engineered wood products for exterior, but not original Masonite exterior siding which is no longer manufactured.