To do so you should first measure the thickness of the existing drywall and use the same size drywall for your patch. This is important so that the final levels of both the new drywall patch and surrounding drywall are the same. Tip 5 - Use the same thickness of drywall as the existing layer.
Therefore you could say that these steps are listed in order of diligence required when carrying them out, number one being the most and number five being the least. Step number one is the most critical because it is the easiest to overlook yet it can make or break whether your texture matches. However, tip number five is easy to accomplish therefore it is lower on the list than numbers one through four. In other words, if you give little or no attention to the number five tip it will adversely affect whether or not your texture matches the surrounding drywall texture. The five tips below are listed in order of importance based on a combination of If followed they can help you create a seamless drywall patch. The following five tips apply to all types of texture.
There are many variables involved that contribute to whether or not you can see the delineation between a new drywall patch and the existing surrounding drywall texture. Matching existing drywall texture is difficult to do when patching drywall.