YORK, Pa.--(BUSINESS WIRE)--May 26, 2026--
Graham Architectural Products, a specialist in high-performance window systems and part of the Oldcastle BuildingEnvelope ( OBE ) portfolio of companies, including CRL and US Aluminum, today introduced the GT6300 Human Impact Window system, designed specifically for behavioral health and healthcare environments where patient protection and therapeutic design must work together. Building on Graham’s established human impact window platform, the GT6300 integrates anti-ligature design and other engineered safety features directly into the window assembly – helping reduce risk in patient environments while preserving daylight and architectural continuity.
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Behavioral health facilities present unique design challenges. Window systems must safeguard patients while meeting strict regulatory requirements, yet still support daylight, visibility, and the calming environments widely recognized as important to therapeutic care.
The GT6300 addresses these needs through an integrated system design that incorporates key safety elements directly into the window assembly. Its anti-ligature design with a concealed energy retention bar helps reduce risk by eliminating exposed hardware within patient environments. The system also incorporates a dedicated sash retention system engineered to keep glazing secured within the frame after repeated impacts, helping maintain system integrity under extreme conditions. Optional integrated blinds with maintenance-only access provide patient privacy while allowing facilities to maintain controlled operation and safety.
Suitable for both new construction and retrofit projects, the GT6300 combines these safety features with strong thermal performance and durable construction for efficient installation and long-term reliability in healthcare settings.
“With the GT6300, architects can address patient safety requirements while balancing compliance, performance, and design,” said Bill Wilder, Director of Technical Sales, Graham Architectural Products. “Window dealers and contractors can deliver a durable, fixed window system that installs efficiently and performs reliably over the long term.”
Innovative safety and performance elements of the GT6300 include:
For more information about the GT6300, please visit GT6300 Human Impact Window system.
About Graham Architectural Products
With more than 50 years of expertise, Graham offers trusted, high-performance products and comprehensive support from start to finish, while ensuring long-lasting reliability for every project. For historic restorations, Graham Architectural Products combines historical window replication with energy-efficient performance.
As part of Oldcastle BuildingEnvelope ( OBE ), Graham benefits from a powerful network that includes US Aluminum and CR Laurence ( CRL ), strong supply chains, and a solid foundation of industry expertise to deliver unmatched quality and innovation. Oldcastle BuildingEnvelope is the industry’s leading architectural glass, glazing system, hardware, and supplies provider. Together with OBE’s expansive selection of entrances, storefronts, curtain walls, window walls, and much more, Graham Architectural Products can provide a comprehensive suite of solutions for projects of all sizes and complexities.
Designed for behavioral health and healthcare environments, the new GT6300 Human Impact Window system from Graham Architectural Products integrates anti-ligature design and other engineered safety features directly into the window assembly, reducing risk in patient environments while preserving daylight and architectural continuity.
