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Code Compliance Flashcards

7 cards from real CBI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Code Compliance flashcards as text

  1. Under the IRC, what is the maximum riser height permitted for a stairway in a one- or two-family dwelling?

    Answer: 7-3/4 inches

    IRC R311.7.5.1 limits riser height to 7-3/4 inches.

  2. What is the minimum tread depth required by the IRC for residential stairways?

    Answer: 10 inches

    IRC R311.7.5.2 requires a minimum tread depth of 10 inches.

  3. Under the IRC, a guard is required on open-sided walking surfaces located more than what height above the floor or grade below?

    Answer: 30 inches

    IRC R312.1.1 requires guards where the drop exceeds 30 inches measured within 36 inches horizontally.

  4. Required guards in a dwelling must have openings that prevent passage of a sphere of what diameter?

    Answer: 4 inches

    IRC R312.1.3 limits guard openings so a 4-inch sphere cannot pass through.

  5. What range of height is required for handrails on residential stairs, measured vertically from the sloped plane of the tread nosings?

    Answer: 34 to 38 inches

    IRC R311.7.8.1 requires handrail height between 34 and 38 inches.

  6. An emergency escape and rescue opening in a basement bedroom must have a sill height no greater than what above the floor?

    Answer: 44 inches

    IRC R310.2.3 caps the bottom of the clear opening at 44 inches above the floor.

  7. What minimum headroom is required over a residential stairway, measured vertically from the sloped plane of the tread nosings?

    Answer: 6 feet 8 inches

    IRC R311.7.2 requires 6 feet 8 inches of minimum headroom.