Contractors and building professionals understand that details can make or break a project. One of the most critical yet often overlooked details of drywall installation is the finishing of corners. Properly finished corners enhance the aesthetic appeal of a space and contribute to the durability of the drywall. In this blog, we’ll explore effective techniques and essential tools to help you achieve flawless drywall corners.
Understanding the Importance of Corner Finishing
Due to their location and structure, drywall corners are susceptible to damage. Proper finishing techniques ensure that corners are visually appealing and resistant to wear and tear over time. Well-finished corners can also significantly improve the overall quality of your work!
Essential Tools for Finishing Drywall Corners
Before diving into the techniques, it’s important to have the right tools on hand. These tools will improve efficiency and ensure a flawless result:
- Drywall Taping Knife: A 10-12-inch knife is ideal for smoothly applying joint compound.
- Corner Trowel: Perfect for achieving precise angles in inside corners.
- Drywall Sanding Block or Pole Sander: Essential for smoothing out the surface after the compound has dried.
- Joint Compound: A lightweight option is recommended for easier application and sanding.
- Drywall Tape: For inside corners, paper tape is often preferred over fibreglass mesh due to its added strength and flexibility. Use a corner roller for smooth operation.
- Automatic Corner Rollers, Finishers and Applicators: Will save you time, improve efficiency, and achieve professional, straight, and uniform results.
Step-by-Step Guide to Finishing Drywall Corners
If you’re not using automatic taping tools, follow these steps to professionally finish drywall corners:
Step 1: Apply the First Coat of Joint Compound
Begin by using your drywall taping knife to apply a thin, even layer of joint compound to the corner. The compound should extend a few inches on either side of the corner to create a smooth base for the tape.
Step 2: Embed the Tape
While the compound is still wet, fold your drywall tape to create a crease, allowing it to fit snugly into the corner. Gently press the tape into place, then use your knife to smooth it out, ensuring there are no bubbles or wrinkles.
Step 3: Apply the Second Coat
Once the first coat has fully dried (typically within 24 hours), apply a second coat of joint compound. This layer should extend further out from the corner than the first, feathering the edges to create a seamless transition between the corner and wall. Using a corner trowel for this step will help you achieve crisp, clean angles.
Step 4: Sand the Surface
After the second layer dries, gently sand the surface using a drywall sanding block or pole sander. The goal is to eliminate rough patches while avoiding damage to the tape or underlying drywall. A smooth, even finish here is essential for a professional look.
Step 5: Apply a Third Coat (Optional)
If imperfections remain after sanding, apply a third coat of joint compound, feathering it even further out from the corner. Allow it to dry, then sand again for a polished result.
Step 6: Final Touches
Once the corner is smooth and ready, wipe down the area to remove any sanding dust. Applying a primer before painting is recommended to ensure even coverage and a flawless finish.
Finishing drywall corners may seem like a small detail, but it makes a big difference in the overall quality of your project. By following these techniques and using the right tools, you can create professionally finished corners that elevate your work and impress your clients. At Clare Interiors, we’re dedicated to providing drywall finishing materials and tools that help contractors and builders get the job done right!
