Lock and Security Equipment (C-28) · Lesson 7 of 7
Fire Door Hardware: Latching, Closers, Hold-Opens and Door Prep Limits (CBC 716)
"Fire Door Hardware: Latching, Closers, Hold-Opens and Door Prep Limits (CBC 716)" is lesson 7 of 7 in the Lock and Security Equipment (C-28) Learning Hub. It opens with "Fire Doors Must Latch and Close" and works through 5 short steps, then a worked example you can check yourself against.
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Steps in this lesson
Fire Doors Must Latch and Close
Closers: Self-Closing and Automatic-Closing
Hold-Open Devices
Labels, Listed Parts and Smoke Gasketing
Prep Limits and Heat Behavior
The worked example in the course applies this lesson to a realistic job in 4 steps, from "Door A, air leakage" through "Latching check".
What you'll be able to do
Explain the main idea of "Fire Door Hardware: Latching, Closers, Hold-Opens and Door Prep Limits (CBC 716)" in plain language you can use on the exam.
Apply this step with confidence: "Hold-Open Devices".
Apply this step with confidence: "Labels, Listed Parts and Smoke Gasketing".
Apply this step with confidence: "Prep Limits and Heat Behavior".
Test yourself on the worked example and the quick-check quiz inside the classroom.
The diagram for this lesson, exactly as it appears in the Learning Hub.
The first steps of this lesson
Step 1: Fire Doors Must Latch and Close
2025 CBC §716.2.6.1: fire doors shall be latching and self- or automatic-closing. The exceptions are narrow: fire doors in common walls between dwelling units or sleeping units in Group R-1 may omit the closing devices, elevator doors at the recall floor may stay open during Phase I recall, and doors required only for ICC 500 need not be self-closing. §716.2.6.2 requires single side-hinged swinging fire doors, and both leaves of pairs, to have an active latch bolt that secures the door when closed unless specifically permitted otherwise. In plain words, a flush bolt is not a latch bolt; that is why Table 1010.2.4 allows only constant latching bolts on the inactive leaf of a rated pair in most cases.
Step 2: Closers: Self-Closing and Automatic-Closing
§716.2.6.4 says automatic-closing fire door assemblies shall be self-closing in accordance with NFPA 80. §716.2.6.5 allows doors that are required to be self-closing, but not required to be automatic-closing, to use delayed-action closers. On a door that is also on an accessible route, set the sweep to the 11B-404.2.8.1 timing (5 seconds from 90 to 12 degrees) and check that the opening force does not exceed what §11B-404.2.9 allows for fire doors (not more than 15 pounds).
The remaining 3 steps, the worked example and the quiz are in the course. This is a preview. The full lesson, with the step-by-step explanations, a worked example and a quick-check quiz, is inside the classroom.
Independent exam preparation. Contractors Classroom is not affiliated with the Contractors State License Board, and no course can guarantee a passing result.
