
The Door and Hardware Institute (DHI), USA
The Door and Hardware Institute (DHI) represents the architectural openings industry. With ancestry dating back to 1934, the Institute has more than 5,000 members in the United States, Canada and abroad. Membership consists of individuals and consultants involved in the architectural openings industry, representing distributors, manufacturers and sales representatives/agency firms, as well as architects, specifiers and contractors who rely on such professionals.