Step 4 · Install New Treads and Landing Pad

Begin by dry-fitting each new tread and the landing pad to ensure a perfect fit. Make any necessary adjustments. Apply a generous bead of construction adhesive along the front and back edges of the stair stringer and subfloor where the tread will sit. Also, apply adhesive to the underside of the tread where it will contact the subfloor. Carefully place the tread onto the stringers, aligning it properly. Secure the tread by driving wood screws through the tread and into the subfloor and stringers below. Predrill pilot holes to prevent splitting, especially near the edges. For risers, if you are installing them, use construction adhesive and nails. Repeat this process for all treads and the landing pad, working from bottom to top.