Apogee Enterprises, Inc. is engaged in the design and development of value-added glass solutions for enclosing commercial buildings and framing art. The Company operates in four segments: Architectural Glass, Architectural Services, Architectural Framing Systems and Large-Scale Optical Technologies. The Architectural Glass segment fabricates glass used in customized window and curtainwall systems comprising the outside skin of buildings. The Architectural Services segment primarily installs and renovates customized aluminum and glass window and curtainwall systems comprising the outside skin of buildings. The Architectural Framing Systems segment designs, engineers and fabricates the aluminum frames used in customized aluminum and glass window, curtainwall, storefront and entrance systems comprising the outside skin and entrances of buildings. Large-Scale Optical Technologies segment manufactures value-added glass and acrylic products primarily for the custom picture framing market.