How to ensure 'Certifire' Fire Door Certification is retained when hanging a Certifire-Approved door leaf or making a doorse
How to ensure 'Certifire' Fire Door Certification is retained when hanging a Certifire-Approved door leaf or making a doorse
![Labels for Fire-Rated Frames - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. Labels for Fire-Rated Frames - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](http://idighardware.com/wp-content/uploads/2010/10/WH-Label.jpg)