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Fill and Sand Imperfections

From Stair Skirt Boards and Trim Refresher · Step 9 of 10 · Video by kenzie mac

Showing 2:38–3:00 of the source video. Watch the full video with every moment.

What happens in this clip

Fill all nail holes and any gaps or cracks between the newly installed trim boards and the existing wall or window frame using wood filler. Once the wood filler is dry, sand the entire surface of the wood trim and any filled areas smooth with 100-grit sandpaper. Also, sand the corners of the trim to round them slightly, making them less sharp, which is especially useful in homes with children. Additionally, sand any textured areas of the drywall adjacent to the trim to ensure a smooth transition, giving the appearance of one seamless board after painting.

Goal: Achieve a smooth, seamless surface for painting

What's used

Tools

  • 100-grit sandpaper
  • Random orbital sander Craftsman
  • Wood filler

About the full video

This project provides detailed, step-by-step instructions for installing decorative window trim to enhance the aesthetic appeal of your home. It covers everything from cutting and assembling the wooden boards, to filling imperfections, sanding, caulking, priming, and painting for a professional, seamless finish. The project emphasizes cost-effectiveness and offers valuable tips to avoid common mistakes.

Step 9 of 10: Sand and Prep for Painting

Once the wood filler is dry, lightly sand all the filled nail holes and any rough spots on the new skirt boards and trim with fine-grit sandpaper. The goal is to create a smooth surface for painting. After sanding, wipe down all surfaces with a tack cloth or a slightly damp cloth to remove all dust.

Open this step in the guide

Every video in Stair Skirt Boards and Trim Refresher

  1. Step 1: Remove Old Skirt Boards

  2. Step 2: Remove Old Trim

  3. Step 3: Clean and Prepare Wall Surface

  4. Step 4: Measure and Cut New Skirt Boards

  5. Step 5: Dry Fit New Skirt Boards

  6. Step 6: Install New Skirt Boards

  7. Step 7: Install New Trim (Base Shoe/Quarter-Round)

  8. Step 8: Fill Nail Holes

  9. Step 9: Sand and Prep for Painting

  10. Step 10: Prime and Paint

Questions about Stair Skirt Boards and Trim Refresher

Is this project truly beginner-friendly, and can it really be done in 3 days?

While listed as beginner, this project requires patience and precision, especially with measuring and angled cuts. A 3-day estimate is feasible if you dedicate full days to the work, but expect it to take longer if you're new to these techniques or have limited time each day. Proper preparation and dry fitting are key to saving time and frustration.

What are the most essential tools I'll need for this project, beyond basic hand tools?

A molding pry bar and nail puller are crucial for safely removing old trim without damaging the wall. A miter saw is highly recommended for accurate angled cuts on the new skirt boards and trim, especially for staircase stringers. Don't forget a reliable tape measure and a caulk gun for construction adhesives.

Why would I choose PVC trim boards over traditional wood for stair skirt boards and trim?

PVC trim boards, like the suggested Veranda PVC, offer excellent moisture resistance and durability, making them less prone to warping or rotting than wood. They are also easier to clean and don't require sealing before painting. However, they can be more expensive and require specific fasteners or adhesives in some cases.

What are common mistakes to avoid when measuring and cutting the new skirt boards for stair angles?

The most common mistake is inaccurate angle measurement, leading to gaps. Use an angle finder or create templates from cardboard for precise cuts, especially where the skirt board meets the stair treads and risers. Always measure twice and cut once, making test cuts on scrap material if unsure.

When should I use construction adhesive versus finish nails for installing the new skirt boards and trim?

Construction adhesive (like Titebond) provides a strong, long-lasting bond and helps secure pieces tightly to the wall, reducing future movement. Finish nails are used to hold the pieces in place while the adhesive cures and provide additional structural support. For trim, nails might be sufficient, but for skirt boards, a combination is best for durability.

How do I handle small gaps between the newly installed skirt board or trim and the wall/stairs?

For small gaps, use paintable caulk to fill them before priming and painting. Ensure the caulk is applied neatly and wiped smooth for a seamless finish. For larger gaps, wood filler (like Varathane) or a small strip of trim might be necessary, followed by sanding and caulking.

What safety precautions should I take, especially when removing old skirt boards and trim?

Always wear safety glasses to protect your eyes from flying debris or nails. Use gloves to prevent splinters and cuts. Be mindful of hidden electrical wires or plumbing behind old trim, and avoid excessive force during removal to prevent wall damage. Ensure the area is well-lit and clear of tripping hazards.

Stair Skirt Boards and Trim Refresher

This project involves removing old stair skirt boards and trim, preparing the wall and stairs, and installing new skirt boards and trim for a refreshed look. It includes measuring, cutting, fitting, fastening, and finishing the new trim pieces.

Read the full guide Browse all guides

Planning this project? Shop Oak Valley Designs.

Fill and Sand Imperfections — Stair Skirt Boards and Trim Refresher | Oak Valley Designs

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