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Drywall Repair With Sandpaper: A Comprehensive Guide

Are you looking to repair drywall damage but want to know more about the process? Whether you’re an experienced home renovator or this is your first time, this comprehensive guide will give you all the information you need on using sandpaper to repair drywall.

We’ll start by looking at the types of damage that require repair with sandpaper, go over what type of sandpaper you should use, discuss the benefits of using different grits, explore wet and dry sanding options, and finally get into the details of proper storage and safety precautions. By the end of this article, you’ll have the references necessary to make the best decisions for your drywall repair project. Let’s get started!

Types of Damage Requiring Sandpaper Repair

When it comes to repairing drywall, sandpaper is just one tool available to you. Certain types of damage, however, are best addressed through drywall sanding. Here’s a look at the ten common types of drywall damage requiring sandpaper repair:

  • Popping Nails
  • Furniture Scuffs
  • Smaller Holes
  • Bigger Holes
  • Water Damage
  • Cracking
  • Joint Tape Loosened
  • Dented Corner Bead
  • Tile Removal Damage
  • Termite Damage

Choosing the Right Grit of Sandpaper

Grit size is an important consideration when selecting sandpaper for drywall repair. The grit number indicates the size of the abrasive particles, with higher numbers meaning a finer grit sandpaper and lower numbers being coarser. Generally, you’ll want to choose sandpaper with a grit between 150 and 180. High numbers are great for smoothing out uneven surfaces and preparing walls for painting, but if choosing a grit that’s too fine, it will be hard to remove the joint compound on your first sanding attempt. This will add time and effort to the project.

Benefits of Using Different Grits

There are numerous advantages to using different grit sizes when tackling drywall repair projects. Finer grits create smoother surfaces and can prepare the wall for painting, whereas coarser grits allow for quicker and more efficient removal of material. Wet sanding, which involves adding water to act as a lubricant, is less abrasive compared to dry sanding and results in a smoother finish. That said, dry sanding removes more material in less time.

Types of Sandpaper

You’ll want to use a 100 or 120 grit sandpaper for drywall repair. In addition, you may also opt for a 150 or 220 grit sand screen or a fine sanding sponge. Make sure to pay special attention to sanding and smoothing the outer edge of the joint compound so that it blends with the existing wall. Once you’ve finished sanding, clean off any residue of mortar and plaster with a damp cloth before storing.

Safety Precautions

It’s important to take safety precautions when using sandpaper. Wearing protective equipment like safety glasses and a dust mask is essential. You don’t want to expose yourself to the dust created from sanding, which often contains silica. Make sure you also have adequate ventilation while sanding drywall. Avoid wearing loose clothing or gloves, keep long hair tied back. Never adjust the sander or setup while it’s running, and keep your fingers away from the sanding disk. If you don’t feel confident enough in completing the project, you can always hire professionals at All Painting to help you.

Caring for and Storing Sandpaper

Be sure to store your sandpaper in dry and cool locations, and keep it unrolled or loose when not in use. Discard used sandpaper promptly, as avoiding reusing the same sheet for multiple tasks. Clean off any mortar or plaster residue by wiping it down with a damp cloth prior to storage.


Sandpaper is a popular option for tackling a variety of drywall repairs. Depending on the type of damage, you’ll need to select the most appropriate grit size and figure out whether wet or dry sanding is best for achieving the desired results. As always, remember to prioritize safety and follow the directions above for proper storage and disposal of sandpaper. If you are unsure it’s always best to hire the professionals to help with your drywalling needs.

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