How to Install Shoe Molding Along Stair Treads

Measure the length of the bottom edge of the first stair tread where it meets the riser. Transfer this measurement to your shoe molding. Use a miter saw to make a clean, straight cut at this measurement. If the corner is not a perfect 90 degrees, you may need to make a miter cut to achieve a snug fit against the riser and the tread.

Hold the cut piece of shoe molding in place against the base of the first stair tread and against the riser. Check for any gaps or unevenness. If adjustments are needed, carefully trim the molding with the miter saw or a utility knife until it sits flush against both surfaces.

Once the first piece of shoe molding is properly fitted, use a brad nailer or hammer to drive 18-gauge brad nails through the molding and into the stair tread and riser. Aim to place nails approximately every 12-16 inches along the length of the molding. Ensure the nail heads are set slightly below the surface of the molding so they can be easily filled.

For each remaining stair tread, repeat the process of measuring the length of the base, cutting the shoe molding to size with a miter saw, performing a dry fit to ensure a perfect seam against the tread and riser, and then securing it with brad nails. Continue this process until all stair treads have shoe molding installed.

Using a small putty knife, apply wood filler or a color-matched wood putty to each brad nail hole. Press the filler firmly into the hole. Smooth the excess filler flush with the surface of the molding. Allow the filler to dry completely according to the product's instructions.

Once the wood filler is completely dry, use fine-grit sandpaper (120-180 grit) to lightly sand all the shoe molding, paying special attention to the areas where nail holes were filled. Feather the edges of the filled areas so they blend seamlessly with the molding. Wipe away all sanding dust with a clean cloth or tack cloth.

Apply your chosen finish (paint or stain) to the shoe molding using a brush or roller. Apply thin, even coats, allowing sufficient drying time between coats as recommended by the product manufacturer. For paint, you may need a primer coat first. Ensure complete coverage and a smooth finish.