Finish TradesQuestion 417 of 700
When hanging gypsum board on a ceiling with framing spaced 16 inches on center, which practice BEST minimizes sagging over time?
a.Installing the board so the long edges run parallel to and centered on a single joist
b.Using the thinnest available board to reduce weight
c.Omitting fasteners in the field of the panel
d.Using ceiling-rated (sag-resistant) board of appropriate thickness fastened at the specified spacing
Explanation
Ceiling-rated sag-resistant board of the correct thickness, fastened at the specified spacing, resists deflection between framing members. Running long edges unsupported, using overly thin board, or skipping field fasteners all increase sag and the risk of the board pulling loose.
Law Reference: 2025 CA Residential Code §R702.3Practice all 700 questions free — no signup required.
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