Wood still rules the day in nonresidential interior doors, and the use of the material within the market is not dissipating any time soon, according to a report by the Window and Door Manufacturers Association (WDMA).

The association has released its WDMA 2015 Architectural Door U.S. Market Study, which provides data and insights used to understand the industry’s performance, key trends and future direction.

According to the report, among nonresidential interior doors, wood remained the dominant material in 2014, with 4.1 million units produced. Steel was the second most common material, with 3 million units, and aluminum followed at 2.4 million units. The 2014 volume for wood doors marked a new eight-year peak, and is expected to continue increasing steadily over the next three years to a new forecasted high of 8.37 million units in 2017, which will also keep these the most popular material for nonresidential interior doors.

The report, based on extensive industry input for product shipments in 2014, was prepared, researched and analyzed by Metrostudy and the Virginia Tech Center for Housing Research. According to WDMA, it delivers information on non-residential interior architectural flush door and stile and rail door market trends and product relationships, historic data for 2012 and 2013, and forecast data for 2015 through 2017. Forecasts are based on projections of construction activity as of May 2014.

The study can be found in the WDMA bookstore at www.wdma.com.