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The 13 Best Ways to Fill Gaps Between Baseboard and Drywall

Generally, caulk is used to fill up the gaps between baseboard or drywall. The process is easy and takes about an hour to do so.

What’s the best way to fill gaps between baseboard and drywall?

Among many ways, you can use spackling or cementitious paste to fill the gap. You can also use spackling mud, liquid glue, or wood filler. Or, you can use a drywall sponge. Liquid plastic is also a popular option. Liquid latex can also be considered.

That’s not all. I have noted down 13 ways to fill gaps between baseboard and drywalls. And you can pull them off pretty easily. 

So what are you waiting for? Let’s start!

Ways to Fill Gaps Between Baseboard and Drywall

Here are 13 ways to Fill Gaps Between Baseboard And Drywall- 

Apply a Thin Layer of Joint Compound

First, you have to prepare the joint compound. Use the bucket, and put the joint compound in it. Use the mixing paddle to mix it, remember to add some water. Then use the joint knife to stir it. After that, take a drywall knife. Use it to apply a very thin layer of joint compound to a slightly messy area. 

Use the joint compound on the crack and apply a thin layer of it over the crack. Use a drywall knife to spread the joint compound over the crack and wipe off excess with a clean cloth. Let it dry completely then scrape off excess joint compound with a razor blade and sandpaper. 

Make sure you only do this for the area that needs to be filled. Otherwise, you may cause more trouble by doing this in another area. Let it dry completely and scrape off excessive joint compound with a razor blade if needed.

Once the joint compound is dried, you have to sand it.

Paint The Area With Acrylic Latex Paint

To do this, first, paint the area with water based acrylic latex and let it dry. Use the brush to apply paint in a thin layer. Let it dry for a few hours. Then scrape off excess paint with the razor blade. Or you can use the wet toothbrush to scrub off extra paint. You can also use a paint sprayer.

Using Non-toxic Liquid Glue

Mix liquid glue with a heavy-duty paper towel in a bucket. Scrape off the surface with a razor blade, then apply to the build-up area. Smooth with a putty knife and let it dry completely. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. After drying it is ready for use. Follow instructions on the package to finish the surface as desired. The time required to complete this process is 50 minutes.

Using Cementitious Paste

Mix spackling or cementitious paste in an empty bucket. Scrape off the surface with a razor blade, then apply to the build-up area. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. 

The time required to finish this process is 40 minutes.

You can find spackling or cementitious paste or concrete admixture here:

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Using Spackling Mud

Like the previous process, mix spackling mud in an empty bucket. Scrape off the surface with a razor blade. And then apply it to the build-up area. 

Smooth with a putty knife and let it dry completely. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. 

Follow instructions on the package to finish the surface as desired. The time required to finish this process is 40 minutes.

Dip the Felt Back Into Glue And Apply Overlap

Dip the felt into the glue and apply it over the area to be glued. Then place the felt back glue again into the gap. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. Then it is ready for use. The time required to complete this process is 50 minutes.

Using Half-and-Half Sandable Abrasive and Joint Compound

Mix half-and-half sandable abrasive and joint compounds in an empty bucket. Then scrape off the surface with a razor blade. Then apply it to the build-up area.

Using Wood Filler

In short, scrape off the surface, apply wood filler, and sand. First, mix spackling or caulking sawdust in an empty bucket. Apply to build-up areas (in case of caulking sawdust pour 1/2 bucket for every 3 bags). 

Wait for 5-10 minutes and keep covered with plastic. You can also skip this part. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. The time required to finish this process is 40minutes.

Using Drywall Sponge

Dampen the drywall sponge, and squeeze out excess water. Scrape off the surface and apply to the build-up area. Dip the drywall sponge into the glue and apply it to the build-up area.

Let it dry completely. Then sand smooth with fine sandpaper followed by medium sandpaper until smooth. Follow instructions on the package to finish the surface as desired.

Using Drywall Tape

Cut a drywall tape to the length of the gap between baseboard and drywall. Dampen the tape on both sides with a sponge. Apply to the build-up area and let it dry completely. Sand lightly with fine sandpaper followed by medium sandpaper until smooth. Follow instructions on the tape’s packaging to finish the surface as desired.

Using Liquid Plastic

Mix clear liquid plastic with sawdust in an empty bucket. Dip plastic applicator for caulking in the glue and apply to the build-up area. Wait for 5-10 minutes. Sand smooth with fine sandpaper followed with medium sandpaper until smooth. The time required to finish this process is 40minutes. 

Glue Metal to Drywall

Mix 1 part glue and 9 parts water in a bucket. Apply to the build-up area. Wait for 5-10 minutes and then apply more glue over it. Then wait again for 5-10 minutes. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. Fix the drywall anchors if they are loose or damaged.

The time required to finish this process is 50 minutes. 

Using Liquid Latex Caulk

Mix clear liquid latex caulk with sawdust in an empty bucket. Apply to the build-up area. Wait for 5-10 minutes and then apply more caulk over it. 

Then wait again for 5-10 minutes again. Sand smooth with fine sandpaper followed by medium sandpaper until smooth. 

The time required to finish this process is 50 minutes.

Tips to Fill Gaps Between Baseboard and Drywall Efficiently

Here are some tips that will help you with following the above processes-

Clean Up The Area With Tampons, Wet Q Tips, and Hot Water

If you want to clean up some old paste, use tampons or similar rudimentary cleaner. You can use it instead of a razor blade, and wet q-tips. 

Use them in hot water to clean areas that need to be cleaned. Especially the areas that easily get stuck on the glue. 

After all the areas are cleaned, let them dry for a couple of hours. Then scrape off the extra joint compound with a razor blade if needed.

Work Around the Corner

If you want to make a gap as small as possible you can use a little trick. First of all, you need to fill the space between the walls and baseboard with a joint compound. After that, run a filbert or sponge float over it to give it a smooth surface. 

Then, move your brush in the opposite direction. Opposite to the way you are going to put your baseboard. Then move back to the original direction. 

This will give it an angle that makes it look like part of the wall. Instead of simply looking like an extension of the wall.

This also helps to fill in any gaps that you can’t place a piece of baseboard in.

Remove Unnecessary Baseboard Layers

Installing the baseboard properly is crucial. If your walls are vertical and your baseboards are horizontal, do not have more than three sheets. Especially of the same color baseboard. If you have more than three sheets in the same color you’ll have a gap between them. 

You can remove the extra sheets with joint compound. And get a nice smooth surface without leaving any noticeable gaps between the sheets. This can be used for horizontal edges such as door frames or corners.

It’s crucial to choose a joint compound that is suitable for your drywall. There are several different types of drywall. And each comes with its own set of recommendations.

If you are using fiberglass batts, you will not have any issues with joint compounds. Make sure that the joint compound has flexi-time for at least 24 hours. That’s if you are using polystyrene or sheetrock.

FAQs

Do you caulk the joint between the baseboard and the wall?

Yes, you do. It is necessary to make sure your baseboards are attached to the wall securely. The baseboards’ top and bottom edges are caulked to seal the gaps and keep out insects. Another big reason to caulk is appearance.

Should I use metal or plastic caulk?

Use a quality plastic caulk, it should be white or off-white in color. Some people use metal and some people use PVC pipe instead of plastic (this can be done for added security). It’s up to you what material you prefer.

Is it better to caulk before or after I paint?

It’s better to caulk before you paint. After the paint is on there is not much you can do to remove the paint. For example, the “V” groove. And putting it back into place after you painted it doesn’t look that good.

Summing Up

I hope that now you know the best way to fill gaps between baseboard and drywall. Doesn’t seem so tough, does it? Follow my tips and you should be done without any mess.

Till then, all the best!