How to Repair a Large Hole in Drywall

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Using a straight edge and pencil, mark a square slightly larger than the damaged drywall hole.

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Then use the straight edge and utility knife to score along the square's edge. Make cuts toward the center to easily remove the drywall.

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Using some scrap drywall, measure and cut out a drywall replacement piece.

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It won't have to fit perfectly, just enough to fit the square hole.

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Trim the backing for the patch.

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Place a wood scrap behind the drywall, and screw it into the wall using drywall screws.

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Then place the drywall patch (from Step 2) into the larger hole and screw it into the wood scrap.

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Apply the drywall tape around the edges of the patch.

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Mix up the joint compound following the instructions. If you prefer using pre-made compound (or spackling), feel free to use that.

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Apply compound over the drywall hole.

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Work the joint compound with a taping knife until it's real smooth. Allow it to dry, which should take about 20 minutes, depending on how much moisture is in the air.

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After the joint compound is dry, smooth out the patch with the sanding block until the surface is even.

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