Quality is everything when it comes to steel doors and frames. They are one of the few components of buildings that people are constantly in contact with — and often provide the first impression of your building.
The Steel Door Institute has a popular industry certification called SDI Certified. The manufacturers with this certification are regularly audited to ensure they meet our rigorous manufacturing, performance and quality standards. Design professionals can just specify SDI Certified and know the manufacturer of their doors and frames will meet the highest standards in the industry