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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. What is the minimum ceiling height required for habitable spaces under the IRC?

    Answer: 7 feet

    IRC R305.1 requires a minimum ceiling height of 7 feet in habitable spaces.

  2. Under the IRC, habitable rooms (other than kitchens) must have a floor area of at least how many square feet?

    Answer: 70 sq ft

    IRC R304.1 requires at least 70 square feet with no horizontal dimension under 7 feet.

  3. Unless on solid rock or frost-protected, IRC footings must extend at least how far below undisturbed ground surface?

    Answer: 12 inches

    IRC R403.1.4 requires footings at least 12 inches below undisturbed ground.

  4. Anchor bolts securing a wood sill plate to a foundation under the IRC must be spaced no more than how far apart?

    Answer: 6 feet on center

    IRC R403.1.6 requires 1/2-inch anchor bolts at a maximum of 6 feet on center.

  5. In a crawl space, untreated wood joists must be at least how far from exposed ground to avoid requiring decay-resistant or treated lumber?

    Answer: 18 inches

    IRC R317.1 requires naturally durable or treated wood where joists are closer than 18 inches to exposed ground.

  6. Crawl space ventilation openings under the IRC must provide a net area of at least 1 square foot for every how many square feet of crawl space area?

    Answer: 150 sq ft

    IRC R408.1 requires 1 sq ft of net vent area per 150 sq ft, reducible to 1/1,500 with a vapor retarder.

  7. Under the IRC, notches in exterior or bearing wall studs may not exceed what percentage of the stud width?

    Answer: 25 percent

    IRC R602.6 limits notches in bearing studs to 25 percent of their width.