Allegion

4specs has listed all the Allegion companies we have identified, excluding non-US and non-Canadian companies. Please let us know if we have missed any. Email:


AD Systems

AD Systems  Specs
AD Systems delivers sliding door and interior storefront systems for major healthcare and commercial projects across North America. Our doors provide a perfect balance of acoustic isolation and space-saving design. We offer a broad selection of stock and custom finishes, and hardware options for your project. Give your next project sliding door solutions that don't compromise on design or performance.



Technical Glass Products

Technical Glass Products
Technical Glass Products provides European-designed steel curtain wall, steel window and door systems and steel silicone glazed curtain wall systems. The SteelBuilt family of products allows for large free spans, larger glass sizes, and improved thermal performance than traditional aluminum systems. Visit tgpamerica.com or call 800.426.0279.


Technical Glass Products

Technical Glass Products
Technical Glass Products provides fire-rated glass and framing systems, including fire-rated glass rated from 20 -180 minutes and glass fire walls rated from 45-120 minutes. Fire-rated framing systems and doors are rated 20-120 minutes and are available in steel, stainless steel, aluminum, hardwood and structural glazed. TGP products are UL-listed and labeled. Visit fireglass.com or call 800.426.0279.