MS Residential Construction Practice Questions - Mississippi Residential Builder Contractor Examination Exam

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What are the 2021 IRC absolute minimum width and thickness for a residential concrete footing, regardless of the lighter values a rule of thumb might suggest?

8 inches wide and 4 inches thick 10 inches wide and 8 inches thick 16 inches wide and 8 inches thick 12 inches wide and 6 inches thick

Correct Answer:

12 inches wide and 6 inches thick

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