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How to Sand Drywall Properly (So You Don’t See the Patch)

September 22, 2026
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5 min watch
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12 steps

Learn how to sand drywall properly and get a smooth, seamless finish every time. In this video, we cover the right way to sand drywall compound, how to feather drywall patches, which grit sandpaper to use, and how to avoid the most common drywall sanding mistakes. If your drywall patches still show through after painting, the problem may be how you’re sanding them. We’ll show you why you should start at the perimeter of the patch, how to blend the edges into the existing wall, when to use coarse vs. fine grit, and how to tell when you’ve sanded enough.

We’ll also demonstrate wet sanding drywall as a low-dust alternative, how to deal with patches that are proud of the wall, how to match existing wall texture, how to fix small holes and imperfections in dried joint compound, and how to use a light to find problem areas before you paint.

Dan
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