The Best Way to Sand Drywall: An Expert Guide

A typical weekend warrior is quite compelled to learn the best way to sand drywall. After all, this kind of errand is among the hardest to do. Even professional contractors have the same opinion, too.

The proper sanding is the key to a smooth paint job. Either way, the final painting output will reveal the verdict. If you get it right, the seams and fasteners will be invisible. If you fail at some point, then the flaws will appear instantly.


Because of the delicateness of this job, we don't wonder anymore why there are a lot of homeowners who just hire professional services. One wrong move and you’ll ruin the entire paint job.

However, if you are brave enough, then there is a way to sand a drywall correctly. You just need to be patient. Of course, it is essential that you are cautious to the details. Once you can do all these, you can deal with this errand correctly!

In this article, we will show you how professionals sand drywalls. Follow the guidelines we will show you so that you can get excellent and flawless results, too!

Best Way to Sand Drywall


The method we will teach you is dry sanding. This is the usual technique used by many professionals because it produces the finest result. Therefore, it is ideal for painting jobs. The only drawback for dry sanding is that it produces too many specks of dust. Luckily, there is a way to deal with it.

Things You Need

  • Putty knife
  • Sanding block
  • Joint compound
  • Sanding sponge
  • Fine-grit sandpaper
  • Pencil
  • Wall primer
  • Plastic sheeting and tape
  • Vacuum clean
  • Goggles and dust mask



The first thing you need to prepare is yourself. You need to have the proper safety gears. Such of these are dust masks, respirators, and comfortable clothing. You have to realize that sanding a drywall can produce a lot of dust.

Just like flour, the dust of drywall is fine. They are susceptible to travel to other parts of your house, too. Therefore, it is necessary to put drop cloths around your house. Moreover, use a plastic sheet and masking tape to shut any doorways and cold-air ducts.

You also need to install box fans on the windows so that you can ventilate your working area. Before you start working, you need to remove the screens of your doors and windows (if there are any). This will lessen the after cleaning that you have to do.

Mapping the Walls and Ceilings

Planning is essential to sanding. Therefore, you need to map out any broad areas such as your ceilings and walls. In this way, you can plan the amount of sanding you will give per each section.

Step 1

Attach a portion of the sandpaper to the sanding block. Optionally, you can purchase pre-cut sandpapers which are perfect for drywall sanders.

If necessary, you can also attach the sanding block to a sanding pole. With this, you can reach high areas and the top portion of your walls. As a reminder, you have to maintain the sanding head in an inclined position. In this way, you can avoid the damaging surface.

Step 2

Using the sanding block, you have to sand the seams, screws, and joints lightly. In doing this, you don't have to put too much pressure. Otherwise, you will fuzz the drywall, which can result into unwanted markings. The force should only be strong enough to take out those bumps and ridges.

Also, you have to avoid sanding in the same direction or a straight line. Doing this can cause depressions and grooves. Instead, you just have to sand in curve motions.

Moreover, you need to use a sanding sponge so that you can reach tight corners and awkward areas of your home. Once again, do not exert too much pressure.

Step 3

Using a flashlight, illuminate the joints of your walls and ceilings. In this way, you can see if there are any grooves, ridges, and gouges. Take your pencil and mark these areas. Next, apply a fresh joint compound to those areas. After, use a putty knife to smooth them. After smoothing, let the mixture dry. You can re-sand these areas afterward.

Step 4

Apply primer to the wall. Let it dry and sand lightly afterward. Doing these process can take out any paper fuzz or lumpy spots. Just remember that you have to use as little pressure as you can so that you can ruin the primer. At this point, your sanding job is done.

Step 5

Take your vacuum cleaner to remove the dust that was produced throughout the entire sanding process. If your vacuum cleaner has pre-filters, then use the one that is built to suck dust from drywall and other tiny particles.


Learning the best way to sand drywall is a useful skill for homeowners. Once you can get master this errand properly, you can tackle any home renovations and improvements. Moreover, you won't need the help of professionals when you are good at this already. Therefore, you can save your precious budget as well.

Although this is a rigorous errand, the output can still be pretty rewarding. Just be patient and hardworking. All those sweat and effort you gave will certainly pay-off. Besides, sanding a drywall is an errand that any DIYers can do! If you are one of them, then this task is not impossible at all!


As a reminder, you have to do this job while your family members are outside or not around. If you have children, you have to take them away from the working area. Those dust can easily get into their system, causing respiratory conditions. Even you must wear protective gears to keep your body safe all the time!

Did you learn in this article? Read more of our tutorials and guides so that you can learn more things about music. Also, don't forget to drop your comments, questions, and suggestions in the box down below!

Leave a Comment:

Popular posts