NV C-4E Drywall Practice Questions - Nevada C-4E Drywall Contractor Examination Exam

For 1/2-inch or 5/8-inch gypsum board on a ceiling with joists 16 inches on center, what is the maximum screw spacing?

7 inches on center 8 inches on center 12 inches on center 16 inches on center

Correct Answer:

12 inches on center

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