Demand for windows and doors in the US is projected to rise 6.9 percent per year through 2018 to $31.9 billion. Plastic windows and doors will be the fastest growing products while metal types will remain the largest segment. Metal and wood products will face competition from plastic, due to the latter?s advantages in cost and energy efficiency.This study analyzes the $22.8 billion US window and door industry. It presents historical demand data for 2003, 2008 and 2013, and forecasts for 2018 and 2023 by material (metal, wood, plastic), product (e.g., panel doors, flush doors, double-hung windows, casement windows), market (e.g., residential, nonresidential, new, improvements and repair) and US region.The study also considers market environment factors, details industry structure, evaluates company market share and profiles 40 industry players, including Andersen, JELD-WEN and Pella.