Disclaimer
Short, and worth reading before acting on anything else on this site.
This is background, not advice
Every page here describes commercial door work in general terms. It is written carefully and it still cannot substitute for somebody inspecting your actual openings.
Editions and amendments move underneath you
Material referencing NFPA 80, the ADA 2010 Standards, ANSI/BHMA grading, and building or fire codes describes requirements as commonly published. Which edition applies to your building is a local question with a local answer.
And where a label or listing on the assembly is stricter than the general rule, the label wins. That point recurs throughout this site because misapplying a general figure against a stricter listing is the most common way people reach a confidently wrong conclusion in this trade.
Nothing here certifies anything
No page on this site establishes that an opening, an assembly, or a building complies with anything. Only a documented inspection, assessed against the codes your officials enforce, does that.
Spring assemblies
Passages describing coiling and sectional door work exist to explain what happens, not to enable it. Torsion and extension springs hold enough stored energy to cause serious injury and are not a task for building maintenance staff. Nothing written here should be treated as encouragement to try.
Outbound references
Standards bodies and other organisations mentioned here control their own publications. We do not, and cannot answer for their content.
Questions about this page
Raise anything written here with Wendell or Priya on (333) 333 333, or use the contact page and say which policy you mean.