Finishing gaps between drywall panels on ceiling

Home Improvement Asked on December 16, 2020

Ran some drywall in a room on the ceiling and some of the joints have a gap about 1/4" wide (either at butts or one place by the wall, which may be closer to 3/8"). The gap at the wall was due to its angle and the other gaps at the butts were from slightly undercutting.

Is something that is still able to be finished?

One Answer

Those gaps are completely common and not an issue. Pros deal with far worse on almost any job, especially when another crew did the hanging.

You could pre-fill those gaps by skimming and let that dry (or use setting-type compound for a faster job). It'll shrink some, but it'll make the taping coat shrink a lot less. It's not necessary, though.

The fact is that these joints will be stronger than those with just surface finishes. The joint compound pushes through the gap and creates a shear bridge, locking the ends of the sheets together much more effectively than just a thin layer on the face would.

Answered by isherwood on December 16, 2020

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