U.S. residential windows demand was $14.2 billion net manufacturer revenue in 2018 compared to $13.5 billion in 2017—a year-over-year growth rate of 4.9%. Growth in windows increased by more than 962,000 units from 2017 to 2018. The map below shows what percentage of these window units went to the top ten states. Factors most impacting demand in these states include changes to legislation, population growth, and repair and remodeling activity.
Builders and contractors vary in their use of the value-added services offered by dealers. The chart below shows a gap analysis of pro dealer and retailer offerings compared to the services builders and contractors reported using. 
Sixty percent of residential decking materials is distributed through lumberyards with over 5,200 lumberyards nationwide. Big box retailers—including The Home Depot, Lowe’s, and Menards—are the second largest outlet for decking materials, with approximately one-third of product being distributed in over 3,800 national locations.
