Wall Moulding Tutorial

Adding wall moulding to your home is a surprisingly accessible DIY project that can yield stunning results with just a bit of effort and patience. Whether you’re a seasoned DIY enthusiast or a first-time decorator, installing moulding can be straightforward and manageable. With the right tools and a step-by-step approach, you can achieve professional-looking results that enhance the elegance of your space. Below, I will walk you through all the ins and outs of how to achieve beautiful custom moulding without hiring out.

Materials and Tools You’ll Need

  • Moulding (choose from options like wainscoting or purchase a ready to assemble kit)
  • Measuring tape (any will work, but I like this digital measuring tape for accuracy)
  • Miter saw or Miter Sheers (for cutting moulding at angles - not needed if you purchased a ready to assemble kit)
  • Caulk gun and caulk (for filling gaps)
  • Wood filler (for nail holes and imperfections)
  • Nails or adhesive (for attaching moulding - use these nails if using a hammer)
  • Hammer or nail gun (nail gun comes with nails)
  • Level (I love my laster level, it makes hanging everything on walls so much easier!)
  • Paint or stain (depending on your finish preference)
  • Paintbrush or roller
  • Sandpaper (medium and fine grit)
  • Pencil

Step-by-Step Instructions

1. Plan and Measure

  • Decide on the Style: Determine the type of moulding you want to install. Use wainscoting for custom sizes (you will need a miter saw or sheers for this), or choose a ready to assemble kit (I linked the one I used above).
  • Measure the Wall: Use a measuring tape to determine the dimensions of the wall(s) where you’ll install the moulding. Record these measurements to ensure you purchase enough moulding material.

2. Cut the Moulding: (if you chose not to purchase a kit)

  • Measure and Mark: Mark the measurements on the moulding where you’ll make the cuts. Accurate measurements are crucial for a clean and professional look.
  • Cut at Angles: Use a miter saw or sheers to cut the moulding at the correct angles. For corners, typically 45-degree angles are used to create a seamless joint. 

3. Dry Fit the Moulding

  • Position the Moulding: Place the cut pieces of moulding against the wall to ensure they fit correctly. Check for gaps or misalignments and adjust as necessary.

4. Attach the Moulding

  • Apply Adhesive or Nails: For a secure installation, apply adhesive to the back of the moulding or use a nail gun to attach it to the wall (I use both). For heavier moulding, nails might be necessary for added stability.
  • Level the Moulding: Use a level to ensure the moulding is straight and even before securing it completely. I use a laser level to save time.

5. Fill and Sand

  • Fill Gaps and Nail Holes: Use caulk to fill any gaps between the moulding and the wall. Use your finger to smooth the caulk after applying it to the crack. Apply wood filler to nail holes or imperfections in the moulding. 
  • Sand Smooth: Once the filler and caulk are dry, sand the area smooth to create a seamless surface.

7. Prime and Paint

  • Prime (if needed): If you’re painting the moulding, apply a primer first to ensure the paint adheres properly. If you purchased a kit they are typically already primed.
  • Paint or Stain: Choose a paint or stain that complements your room’s decor. Apply a coat of paint or stain, and allow it to dry completely. You may need to apply a second coat for full coverage.

8. Touch Up and Final Inspection

  • Inspect for Touch-Ups: Check the moulding for any touch-ups or areas that need additional paint or stain. Make any necessary adjustments to ensure a flawless finish.

9. Clean Up

  • Remove Any Masking Tape: Carefully remove any painter’s tape used to protect adjacent areas.
  • Clean Your Tools: Wash brushes, rollers, and other tools used during the painting process.

Tips for Success

  • Ready to Assemble Kits: Consider a ready to assemble kit for a smoother application process.
  • Practice Cutting: If you’re new to using a miter saw/sheers, practice cutting on scrap pieces to get a feel for the tool and angles.

Adding wall moulding can significantly enhance the elegance of your home by providing architectural interest and a polished finish. With careful planning and execution, you can achieve a professional look that elevates your interior design.