Unfortunately accidents do happen, and the results of some accidents, like large gaping holes in one’s drywall, can be costly to repair. As such some home owners attempt to repair the damages themselves.
This article will attempt to explain how to repair large nine inch or larger drywall holes. This article is meant to be for informational purposes only and is not designed to take the place of professional assistance. No guarantees of repair success are inherent within.
Before starting the repair the following items will need to be assembled; four inch joint knife, six inch joint knife, eleven inch joint knife, spare piece of drywall, construction adhesive, drywall tape (mesh type), utility knife, pencil, drywall screws, drywall saw or saber saw with an angled base plate, dust mask, fine grain drywall sandpaper, sanding block, backing boards and a container of patching plaster.
Step One: Preparing the Surface Area
Commence by taking out the drywall saw and utility knife. After that, cut around the pre-existing drywall hole until you have a clean, even rectangular area to work with. Thanks to the sloping surface of the saw, the interior surface of the drywall rectangle should have a beveled edge so that the drywall patch will have something to hold onto.
Step Two: Preparing the Baker Boards and Drywall Patch
Once the surface area has been prepped it is time to prime the patch. Measure the drywall rectangle and then shift those measurements to the extra piece of drywall that will be used to fashion the patch.
Before cutting, add one additional inch diameter on all sides of the patch to allow for errors. Next, cut out the patch from the extra piece of drywall.
Continue by measuring and cutting out one or more backing boards. The number of backing boards will be determined by the size of the hole. The bigger the hole, the more backing boards needed.
Step Three: Installing the Baker Boards and Drywall Patch
Now it is time to install the backer boards. Liberally apply construction adhesive to both ends of the backer board. Place the backer board inside the hole, adhesive side facing the sheetrock. Adhere the backer board to the inside of the hole and then secure it using drywall screws and a drill. Repeat these procedures until you are satisfied that there are enough backer boards in place.
Once the backer boards are properly attached take the drywall patch and measure it up against the backer boards. Lightly mark with a pencil where the backer boards are in relation to the patch. Doing so will serve as a screwing guide in later steps.
Next, apply plaster compound to the edges of the patch like you are buttering bread. Place the “buttered” patch into the hole. The patch should but up against the backer boards and sit flush with the remaining wall.
Next, take one of the smaller joint knives and load it with compound. Begin applying the compound around the patch’s edges being sure to work the compound into the seams.
Then take some more drywall screws and screw them into the patch where the backer boards are. This is where the pencil marks made previously onto the patch will come in handy. Be sure to countersink the screws and then apply a layer of compound over them so that they will be flush with the wall.
When finished spackling allow the compound to dry; this could take up to 24 hours.
Step Four: Sanding
As soon as the spackling is utterly dry the sanding can commence. A dust mask will need to be worn to preserve the lungs during the sanding procedure. With the mask on, fasten the fine grain sandpaper to the sanding block. Next, begin to lightly sand down the irregular edges. Prolong the sanding until the wall surface is completely level.
Step Five: Finished Surface
Once the sanding and dusting of the wall’s surface area is complete, the wall can be painted or wallpapered to match individual tastes.
It is critical to remember that drywall holes that are smaller in size require different repair techniques.
To reiterate, this article is no proxy for professional assistance. Those who yearn for more information on how to complete difficult home repairs should seek out the guidance of a accredited contractor.