Drywall cracking in ceiling

Close-up of a distinct crack in a white painted drywall ceiling, indicating structural or settling issues.
Photo: Emmanuel Correia / Pexels
A trowel spreading joint compound over a repaired drywall seam or crack.
Photo: La Miko / Pexels

Watch: Repairing Ceiling Drywall Cracks

How to Repair a Cracked Drywall Ceiling | This Old House via This Old House

Understanding Ceiling Drywall Cracks

Gypsum panels are suitable for use on ceilings.

Despite their common use, various factors can lead to cracking in ceiling drywall.

Installation Practices and Cracking

Proper framing and fastener spacing are crucial for ceiling drywall stability.

For ceilings, 1/2-inch panels can be used with joists spaced up to 24 inches on center when installed perpendicular to framing, or 16 inches on center when installed parallel.

Alternatively, 5/8-inch panels are suitable for joists spaced up to 24 inches on center, regardless of their orientation.

Fastener spacing is also important; screws should be no more than 12 inches on center for ceilings, and nails no more than 7 inches on center.

Control joints are required where a ceiling abuts a wall and relieve stress to prevent cracking.

These joints should be installed no more than 30 feet on center in ceilings.

Joint Treatment and Environmental Influences

Effective joint treatment is critical to minimize cracking in ceiling drywall.

Joint compound shrinkage, insufficient compound thickness, or improper drying can contribute to crack development.

Building movement, along with changes in temperature and humidity, are environmental factors that can also cause cracking.

Planning for Your Ceiling Drywall Project

Accurate material estimation and adherence to installation guidelines can help prevent future issues like ceiling cracks.

To ensure you have the correct quantities for your project, utilize our free drywall calculator at /.

Key takeaways

  • Correct framing and fastener spacing are essential for preventing cracks in ceiling drywall.
  • Control joints effectively relieve stress and are required where ceilings meet walls or in large spans.
  • Proper application and drying of joint compound are critical to minimize crack formation.
  • Environmental factors like building movement, temperature, and humidity can contribute to ceiling drywall cracking.

Related tools

Estimate materials with our free drywall calculator on DrywallCalcs.

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