![QQ: What is the minimum GWB penetration for a fire-rated frame? - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. QQ: What is the minimum GWB penetration for a fire-rated frame? - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](http://idighardware.com/wp-content/uploads/2017/01/Frame-Details-NFPA-80.jpg)
QQ: What is the minimum GWB penetration for a fire-rated frame? - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
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![Entry door jamb width illustration. Common jamb sizes: 4-9/16”, 5-1/4” or 6-5/8”. (Typical 2x4 is actua… | Exterior door frame, Door frame, Installing exterior door Entry door jamb width illustration. Common jamb sizes: 4-9/16”, 5-1/4” or 6-5/8”. (Typical 2x4 is actua… | Exterior door frame, Door frame, Installing exterior door](https://i.pinimg.com/originals/94/6e/b6/946eb6c76729ab49c6153a903c0dce76.jpg)