Demand for metal windows and doors is forecast to increase 4.2% per year to $13.5 billion in 2021. Unlike the wood and plastic segments, the commercial market is the dominant sales outlet for metal windows and doors, accounting for over 56% of demand in 2016.

Global demand for ultraviolet disinfection equipment is forecast to rise 7.9% annually to $1.5 billion in 2021. Gains will be driven by the increased use of UV techniques to replace or -- in most cases -- augment traditional chemical treatment in both municipal and industrial water treatment applications.

Demand for bathtub and shower fittings is forecast to increase 4.4% per year through 2021 to $1.5 billion, the best performance of any major product type in both percentage and dollar terms. Rising building construction spending will drive demand growth.

Disposable goods accounted for 71% of nonwovens sales in 2016. Disposables markets include consumer, filtration, and medical. Demand for nonwovens used in disposable goods is expected to increase 3.2% per year to $5.6 billion in 2021.

Sales of biometric access control systems are projected to increase 9.9% annually to $1.2 billion through 2021. Biometric products will continue to represent the fastest growing product segment through the foreseeable future.

Demand for carpets and rugs in India is forecast to grow 5.9% per year to 120 million square meters in 2021, expanding faster than any other major nation worldwide. Growth will be driven by strong gains in construction activity, expanding the size of the country’s building stock.

Demand for plastic doors is forecast to increase 6.0% per year to $2.9 billion in 2021, remaining the smallest but fastest growing material segment. Home and business owners will increasingly specify fiberglass doors for their superior durability and aesthetics compared to steel and vinyl.

Demand for metal roofing in commercial building construction applications is projected to advance to 19.0 million squares in 2021. The new commercial market will see the more rapid gains, bolstered by growth in office, retail, and lodging construction spending.

Global demand for excavators is forecast to advance 9.9% per year through 2021 to $50.6 billion, approximating the average market pace. Growth in the segment will be supported by: • advances in global building and nonbuilding construction spending • increasing mining and forestry sector production, bolstered by rising commodity prices • expanding natural gas output and minor gains in crude oil production

Demand for security cameras is projected to increase 7.2% annually through 2021 to $2.8 billion. Gains will result from a variety of factors that support replacement demand and sales of higher value, upgraded versions, including: • ongoing product advancements in camera technology • increasing affordability of cameras with expanded features, such as internal recording capabilities • continued shift toward upgrading existing legacy analog systems to either IP or HD analog systems in order to utilize more feature-rich cameras and systems • rising interest in higher value, more niche camera types -- such as thermal or explosion resistant -- as their prices continue to come down, which will work to expand the base of installed cameras