You can purchase all of the above tools and supplies at any local home improvement or hardware store at a reasonable price. But for small holes like those caused by doorknobs, you can also purchase a patch kit. Just ask a store representative for help locating one that’s right for your drywall repair project. Look below for a simple guide to patching a doorknob hole in your drywall.
Later drop cloth on the floor beneath your work area. This will catch all of the loose dust and debris.
Use your utility knife to scrape away any access debris along the edges of the hole.
Apply the self-adhesive mesh patch on top of the hole.
Use your drywall knife to apply the lightweight joint compound over the self-adhesive mesh patch. Use a crisscross pattern to ensure full and even coverage. Taper the edges as you go to blend the compound into the wall. To spread thinner coats of joint compound, simply increase the amount of pressure you use.
Allowed the drywall joint compound to dry completely.
Apply another coat of your lightweight joint compound.
Once the compound is completely dry again, use your sanding sponge to smooth it all out into an even surface. This may take a few attempts to achieve a smooth-enough surface.
Once you have finished sanding the dried joint compound, you are ready to prime and paint. Be sure to use a quality primer and paint, and also be sure that your paint color matches the existing color on your wall. A store representative can help you match your existing wall color, since it can be hard to do on your own. Sometimes a color chart displays a different shade than the one that appears once your paint has dried. Avoid this with some forethought.