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How Big Of A Hole Can You Fill With Drywall Mud? [Solved]

Preparing the Drywall Area. Use spackle to repair holes less than 4 inches (10 cm) in diameter. Spackle can be used to repair holes up to the size of your hand. You will have to use a support like mesh or wire to repair holes larger than 4 inches (10 cm) in diameter.

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