Holes and cracks may sometimes appear in your plasterboard walls or ceilings. Small holes and cracks are often easier to repair than larger holes. For this reason, you need to be very careful when fixing these large holes. You don't want to make any mistakes during the repair that may lead to even more costly procedures to fix. Therefore, here are a few tips to help you fix the large holes like a pro.
Step 1: Mark around the Hole
Locate the nearest joist or stud on either side of the damaged area. Using a pencil and a carpenter's square, (which you can find at your local home improvement store), mark around the hole the parts that have to be cut. The aim of using the carpenter's square is to come up with markings that have right-angled corners around the hole. This will make it easier to cut a patch to fix the hole.
If a joist or stud frames a door or window, you need to extend these marks to the next joist or stud. This will ensure that there are no joints in line with the opening of the window or door. Otherwise, the constant opening and closing of the door or window would subject the joint to cracking.
Step 2: Cut Out the Damaged Area
Carefully cut out the sections of the plasterboard along the pencil marks using a keyhole or drywall saw. You can then use a utility or putty knife.
Step 3: Fix Wood Battens behind the Hole in Your Plasterboard
Measure the height of the hole in your plasterboard and cut two wooden battens, which are slightly longer than this height. The extra length will allow for an overlap on each end for more support of the patch. You can then install these battens in the cavity behind that hole. Drive screws through the plaster into the timber overlaps to secure the battens.
Step 4: Cut Out the Patch and Fix It
Measure the repair area and cut a piece of wallboard to this size using a carpenter's square or utility knife. You then have to install this patch using screws. When doing this, make sure you position the screws a few centimetres from the edges to prevent the plasterboard from crumbling or spitting. To complete the patch, you will need a self-adhesive fibreglass plasterboard tape and a plasterboard joint compound. You can find these at a home improvement store. Run strips of the tape around your patch and centre it on the seams. Spread the joint compound across the tape and patch using a taping knife. This will create a smooth and flat surface. You can let the compound sit overnight to cure before you sand until smooth.