How to Do Drywall Corners
To do drywall corners, start by attaching a metal or plastic corner bead to the outside wall corners.
Then, scoop pre-mixed joint compound onto a hawk and apply it to the wall corner.
Smear the compound down the wall to cover the wall corner and corner bead.
After the compound hardens, scrape off any excess and lightly sand with 120-grit sandpaper.
Apply a second coat of compound using a 10-inch drywall knife once the first coat dries.
Finally, apply a third and final compound coat with a 12-inch knife.
Inside wall corners require folding paper drywall tape lengthwise to form a right angle or using metal-reinforced drywall tape.
For inside wall corners, spread joint compound on each wall side using a 4-inch-wide drywall knife.
Set the drywall tape into the wet compound, pressing it tight to the wall.
Spread more compound over the tape, applying greater pressure on the outer edge of the knife to feather the compound.
Use an inside-corner trowel to smooth the compound from the corner joint.
Check this out:
Did You Know?
1. The technique of applying drywall compound to corners, known as “mudding,” actually dates back to ancient Egypt, where a similar method was used to create decorative plaster finishes.
2. Drywall corners are traditionally finished using one of two methods: “paper-faced” or “metal bead.” Paper-faced corners involve applying a strip of paper tape over the joint, while metal bead corners use a metal strip for added durability.
3. The term “bullnose” refers to a specific type of rounded corner commonly used in drywall installations. It gets its name from a style of nose ring worn by Spanish bullfighters, as the shape resembles the rounded tip.
4. In drywall construction, it is common to employ a technique called “backblocking” to strengthen corners and prevent them from cracking over time. This involves inserting small wooden blocks behind the drywall sheets at the corner joint, providing extra support.
5. For DIY enthusiasts or professionals looking for an alternative to traditional drywall corners, there is a technique called “plastering-in-place.” This method involves sculpting the corner directly with wet plaster rather than using pre-made corner strips, allowing for more creative flexibility in shaping the corners.
Attaching Metal or Plastic Corner Bead to Outside Wall Corners
When it comes to achieving a professional finish on your drywall corners, attaching a metal or plastic corner bead is an essential step. This bead not only provides a clean and straight edge for your corners but also helps to protect them from any potential damage.
To begin, you will need to gather your materials, including:
- Corner bead (metal or plastic)
- Drywall screws or nails
- Drill or hammer
Start by measuring the length of the corner that needs the corner bead. Using a hack saw or tin snips, cut the corner bead to the appropriate length. Ensure that it fits snugly against the wall corner.
Once cut, position the corner bead on the corner and secure it with screws or nails. Make sure to space them evenly along the length of the corner bead. This will ensure that it remains firmly in place.
Applying Compound and Smoothing Down Wall Corners
Once the corner bead is securely attached, it’s time to move on to applying the joint compound.
Begin by scooping pre-mixed joint compound onto a hawk, a flat metal plate with a handle.
With a drywall knife, scoop a small amount of compound from the hawk and apply it to the wall corner.
Using a smooth, swiping motion, smear the compound down the wall, covering both the wall corner and the corner bead.
Apply enough compound to fully cover the corner bead but avoid applying too much at once.
Remember, you can always add more compound if needed, but removing excess compound can be a tedious process.
Take your time and ensure that the compound is evenly applied.
- Scoop pre-mixed joint compound onto a hawk.
- Apply compound to the wall corner using a drywall knife.
- Smear the compound down the wall, covering the wall corner and the corner bead.
- Avoid applying too much compound at once.
- Add more compound if needed.
- Take your time for even application.
Scraping Off Excess Compound and Sanding
Once the compound has dried and hardened, the next step is to remove any excess compound and achieve a smooth finish. Here’s a step-by-step guide on how to do it effectively:
-
Scrape off high spots and bumps: Start by using a drywall knife or putty knife to carefully scrape off any high spots or bumps. This will help create a more even surface. Be cautious not to scrape off too much compound around the corner bead or wall surface, as this can lead to an uneven finish.
-
Lightly sand the surface: After scraping off the excess compound, lightly sand the surface using 120-grit sandpaper. This step helps to smooth out any remaining imperfections and create a seamless finish. Remember to sand gently and evenly, taking care not to sand through the layers of compound or damage the corner bead.
By following these steps, you can remove excess compound and achieve a smooth, professional finish for your project.
Applying Second Coat of Compound After First Coat Dries
Once the first coat of compound is completely dry, apply a second coat. The purpose of this coat is to even out the surface and fill in any imperfections or gaps.
To begin, use a 10-inch drywall knife to apply the second coat of compound. Spread the compound evenly over the surface, making sure it covers both the corner bead and the wall surface.
Take your time and apply the compound in thin, even layers to avoid buildup or thick patches. Allow the second coat of compound to dry completely before proceeding to the next step.
Applying Final Coat of Compound with Larger Knife
Once the second coat of compound has dried, it’s time to apply the final coat. This coat will help to achieve a smooth and polished finish. Use a 12-inch drywall knife to spread the compound over the surface, starting from the middle and working your way outward.
Apply the compound in a wider, feathered edge to blend it seamlessly with the surrounding wall surface. Remember to use long, smooth strokes and avoid applying excessive pressure, as this may result in unevenness. Allow the final coat of compound to dry completely before proceeding to the next step.
Smoothing Compound Using an Inside-Corner Trowel
To achieve a flawless finish on inside wall corners, it’s crucial to use an inside-corner trowel. This specialized tool is designed to smooth and shape the compound in tight corners, ensuring a clean and professional look.
To begin, fold paper drywall tape lengthwise to form a right angle. This tape will reinforce the compound and prevent cracks from forming.
Start by spreading joint compound on each wall side of the inside corner using a 4-inch-wide drywall knife. Ensure that the compound is evenly applied and covers both sides of the corner.
Next, set the drywall tape into the wet compound by hand, pressing it tightly against the wall surface using the 4-inch knife.
Once the tape is in place, spread more joint compound over it, applying greater pressure on the outer edge of the knife. This will help to feather the compound and ensure a seamless transition from the corner to the wall surface.
Finally, smooth the compound from the corner joint using an inside-corner trowel. This tool will help to shape and blend the compound, resulting in a professional and polished finish.
In conclusion, achieving perfect drywall corners requires attention to detail and a step-by-step approach. By attaching a metal or plastic corner bead, applying compound in multiple coats, and using the right tools, you can achieve flawless and professional-looking corners in your drywall projects.
Tips and Techniques:
- Use an inside-corner trowel for smooth and professional results.
- Fold paper drywall tape lengthwise for reinforcement.
- Apply joint compound evenly on both sides of the inside corner.
- Set the drywall tape tightly against the wall surface.
- Feather the compound by applying greater pressure on the outer edge of the knife.
- Smooth the compound using an inside-corner trowel.
Frequently Asked Questions
Do I need drywall corners?
While the use of corner bead is common for outside corners due to its added protection against wear and tear, its necessity for inside corners is debatable. In fact, a straightforward paper tape installation can effectively serve the purpose without the need for corner beads. Consequently, the decision to utilize drywall corners ultimately depends on the level of durability and aesthetics desired, as well as personal preference.
Why use metal corners on drywall?
Using metal corners on drywall offers several advantages over vinyl corner beads. Firstly, metal corners provide enhanced durability and resistance against common damages that occur on outside corners. This helps to maintain the overall integrity and longevity of the drywall installation. Additionally, metal corners offer a seamless and clean finish that is easy to work with, making them a preferred choice for contractors and DIY enthusiasts alike. Their stability and strength make them ideal for areas prone to high traffic or potential impact, ensuring that the corners remain intact and protected over time.
Should drywall corners overlap?
No, drywall corners should not overlap. It is important to ensure the framing is straight before installing the drywall. When assembling the corner, it is advised to cut the first board flush with the edge of the corner stud and the second board should overlap halfway onto the first board. This method ensures a seamless and secure corner without any overhanging edges.
1. Can you explain the step-by-step process of mudding and taping drywall corners to achieve a professional finish?
To achieve a professional finish when mudding and taping drywall corners, you need to follow a step-by-step process.
First, you should apply a layer of joint compound to the corner using a 4″ or 6″ putty knife. Make sure to cover the corner completely, extending the compound at least 6 inches on each wall. Next, embed a strip of paper joint tape into the wet joint compound, starting from the top and working your way down. You can use the putty knife to feather the edges of the compound for a seamless transition. Once the tape is applied, remove any excess compound by smoothing it out with the knife.
After the initial layer dries, apply a second coat of joint compound, feathering it out beyond the first layer to blend it in. Use a wider putty knife, around 8″ or 10″, to achieve a smoother finish. Make sure to cover any gaps or uneven areas and remove excess compound as before. Allow the second coat to dry completely, then sand the area gently to smooth out any imperfections. Repeat these steps, applying additional coats and sanding between each layer, until the corner is smooth and seamless. Finally, you can add a topcoat of joint compound to further refine the finish, sanding it once dry, and then prime and paint the corner for a professional appearance.
