DHI - proudly serving door security and safety professionals for over 45 years

The Door and Hardware Institute has proudly served door security and safety professionals (and the dynamic companies they represent) in the non-residential construction industry for 45 years. Our association provides technical training and certifications that are highly respected marks of our industry expertise. Our training takes years to master and culminates in very rigorous examinations. This is because our solutions are held to the highest of standards and save lives during tragic events.