Apogee Enterprises, Inc. is engaged in designing and developing architectural building products and services. The Company operates through four segments: Architectural Framing Systems, Architectural Glass, Architectural Services and Large-Scale Optical Technologies (LSO). The Architectural Framing Systems segment designs, engineers, fabricates and finishes the aluminum frames used in aluminum and glass window, curtainwall, storefront, and entrance systems and comprises of skin and entrances of commercial, institutional, and multi-family residential buildings. The Architectural Glass segment fabricates coated glass used in window and wall systems. The Architectural Services segment provides full-service installation of the walls of glass, windows, and other curtainwall products. The LSO segment manufactures glasses and acrylics products primarily for framing and display applications. Under the Tru Vue brand, products are sold primarily in North America.