A ceiling board installation uses screws into framing at the panel field. What maximum field screw spacing is commonly used for gypsum board ceilings?
Correct Answer
B) 12 in. on center
Common gypsum-board application guidance uses 12 in. maximum screw spacing in the field of ceiling panels because ceiling boards carry their own weight from overhead fasteners. Other choices are wall edge or wall field values, or too wide for ceiling field fastening.
Why This Is the Correct Answer
Common gypsum-board application guidance uses 12 in. maximum screw spacing in the field of ceiling panels because ceiling boards carry their own weight from overhead fasteners. Other choices are wall edge or wall field values, or too wide for ceiling field fastening.
Why the Other Options Are Wrong
Option A: 8 in. on center
In finishes, 8 in. on center is the wrong selection for Ceiling screw spacing: 8 in. on center is a different published number than the cited Ceiling screw spacing value; Gypsum board screw spacing for ceiling fields supports 12 in. on center.
Option C: 16 in. on center
Choice C gives 16 in. on center. Its specific error: 16 in. on center is a different published number than the cited Ceiling screw spacing value; Gypsum board screw spacing for ceiling fields supports 12 in. on center. The accepted answer is 12 in. on center.
Option D: 24 in. on center
Choice D (24 in. on center) is rejected because 24 in. on center is a different published number than the cited Ceiling screw spacing value; Gypsum board screw spacing for ceiling fields supports 12 in. on center. The cited answer is 12 in. on center.
Memory Technique
Treat ceiling screw spacing like a labeled shelf; only the matching condition belongs with 12 in. on center.
Reference Hint
Open Gypsum Construction Handbook, 7th Ed., 2014; use the index entry or section for "Gypsum board screw spacing for ceiling fields" to confirm that Common gypsum-board application guidance uses 12 in.
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