How to Fill Large Gaps in Drywall

This article intends to provide an answer for those people who have had the misfortune of having the drywall in their homes fall off as a result of water damage or other factors. Since it is impossible to hide such gaps, your only option at this point would be to use spackling paste after properly sanding and priming them.

How to fill large gaps in drywall?

You will be needing the following materials:

The above list is just a general guide and you can improvise as you see fit. For instance, some people prefer using drywall joint compound instead of spackling paste which is fine depending on how much work you want to put into your project. Also, keep in mind to use a plastic knife instead of the metal one as spackling paste is known for being hard to remove from surfaces other than drywall.

With your supplies at hand, it should be easy for you to follow through with each step as described below:

  1. Mix the compound until it has consistent color
  2. Spread compound out evenly
  3. Let it dry before sanding

In just a few, simple steps you have been able to clean up those unsightly gaps. You can now move on to priming or painting your walls as per your preference. Also, it would be a good idea if you can reinforce the existing drywall to prevent future damage.

How much does it cost?

The materials mentioned above are easy enough to find even a small hardware store and if you already have them kept in your house, then you won’t need to spend anything as such. Just be sure to use the paste on gaps that are no wider than an inch or else it might start to sag and you will have problems trying to remove it without leaving a mess.

It is also advisable that you dry the gaps as much as possible before using the paste as they are easier to fill when slightly dry. You can then follow up with some primer or paint depending on your preference and what looks best in terms of color.


In conclusion, understanding how to fill large gaps in drywall is just a question of having the right tools and putting in some effort. You will be surprised by the results you can get even if you don’t have a lot of experience in this area. Just remember to use common sense while going through each step so any problems you encounter along the way can be solved before it becomes too much of a hassle to bother with.

Good luck! I hope this article helped show you how to fix large gaps in drywall. Please remember that the gap shouldn’t be wider than an inch or else spackling paste will start to sag and you won’t be able to use it properly. You should then follow up with some paint or primer depending on how you want your wall to look.

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Jason D. Turner

Hi there! My name is Jason, a keen enthusiast in power tools and their mechanisms and the sole mastermind behind the Noisy Tools. Working in a multi-national construction firm in Brooklyn for over a decade, I have developed a fair flair for different construction devices, gadgets, and their diverse operational aspects. By the dint of this platform, I have researched and reviewed various tools with utmost details of even the most trivial matters that will provide valuable insights for any prospective user.

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