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How to Finish Bottom of Drywall in Garage

When it comes to finishing the bottom of drywall in your garage, there are a few key steps to follow to ensure a professional-looking result. While it may seem like a daunting task, with the right tools and techniques, you can achieve a smooth and seamless finish. In this article, we will guide you through the process, providing tips and answering frequently asked questions to help you complete the job successfully.

Step 1: Prepare the area
Before starting the finishing process, make sure the drywall is properly installed and secured. Repair any damages or imperfections, such as holes or cracks, using joint compound and sanding the surface until smooth. Clean the area thoroughly to remove any dust or debris that may interfere with the finishing process.

Step 2: Apply joint tape
Using a putty knife, apply joint tape along the seams of the drywall. This will help reinforce the joints and prevent cracks from forming. Make sure the tape is centered along the seams and smooth out any wrinkles or bubbles.

Step 3: Apply joint compound
Using a trowel or putty knife, apply a thin layer of joint compound over the joint tape. Start by filling the seams and gradually work your way outwards, feathering the edges for a smooth transition. Allow the compound to dry completely before moving on to the next step.

Step 4: Sand the surface
Once the joint compound is dry, use sandpaper or a sanding block to smooth out any uneven areas or ridges. Be careful not to sand too much, as it may damage the joint tape or expose the drywall underneath. Wipe away any dust with a damp cloth or vacuum cleaner.

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Step 5: Apply a second coat
To achieve a flawless finish, apply a second coat of joint compound. This time, spread the compound a little wider than before, blending it with the surrounding area. Allow it to dry completely, and sand again if necessary.

Step 6: Texture (optional)
If desired, you can add texture to the finished wall to match the rest of your garage. There are various techniques you can use, such as stippling, knockdown, or orange peel. Choose the texture that best suits your preferences and follow the instructions provided with the texture material.

Step 7: Prime and paint
Once the joint compound is completely dry, prime the surface with a high-quality primer. This will help the paint adhere better and provide a more even finish. After the primer has dried, apply your chosen paint color, using a roller or brush. Apply multiple coats if necessary, allowing each coat to dry before applying the next.


1. Can I skip the joint tape?
Using joint tape is highly recommended as it reinforces the seams and prevents cracks from forming.

2. How long does the joint compound take to dry?
Drying times vary depending on the product and environmental conditions. It is typically recommended to wait 24 hours before applying additional coats or sanding.

3. Can I use regular drywall mud for the garage?
Yes, regular drywall mud or joint compound can be used for finishing the bottom of drywall in your garage.

4. Can I skip the sanding step?
Sanding is essential for achieving a smooth finish. Skipping this step may result in an uneven surface.

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5. Do I need to add texture to the finished wall?
Texture is optional and depends on personal preference. You can choose to leave the wall smooth or add texture for a more finished look.

6. How many coats of joint compound should I apply?
Typically, two coats of joint compound are sufficient. However, additional coats may be needed depending on the desired finish.

7. Can I use a roller instead of a brush to paint?
Both rollers and brushes can be used to paint the finished wall. Rollers are typically faster for larger areas, while brushes are more precise for edges and corners.

By following these steps and keeping these FAQs in mind, you can confidently finish the bottom of drywall in your garage. With patience and attention to detail, you will achieve a professional-looking result that will enhance the overall appearance of your space.