Fire rated doors and frames play a vital role in keeping people safe and minimizing property damage during a fire. In fact, there has never been a loss of life due to a properly installed and maintained fire door. Hollow metal is the only door material widely available with a 3 hour label.
There’s a lot to learn when it comes to fire rated products. SDI has developed a variety of resources for architects, specifiers and distributors. The “Fire Rated Assemblies” presentation is a good place to start for a broad primer.
The door and frame manufacturers below are SDI Certified. Clicking their logos will bring you to their website.