Doors are used to provide separation and security for buildings and spaces. Door assemblies have become increasingly complicated as electronic door hardware and other security components become more common in buildings. The following organizations provide helpful information to design professionals and building managers.
For door and hardware related articles on archtoolbox.com, visit the Doors / Windows / Openings section.
Window and Door Manufacturers Association
Door and Hardware Institute
The DHI has some helpful articles for architects, specifiers, and building managers.
Steel Door Institute
The Steel Door Institute has a massive Fact File, that provides everything you need to know about steel doors. Also, be sure to check out their Frequently Asked Questions, which we found very helpful.