Cut and Attach Top Piece

What happens in this clip

To complete the framing, cut a top piece of wood that matches the new squared profile and covers the existing round step. Use a scrap piece of stair tread material for this. Place the scrap piece over the new frame and the existing step, then use a marker to trace the outline of where it needs to be cut to fit snugly. Cut the piece to shape and then secure it to the top of the newly built frame using the nail gun. Test the stability by applying weight to the completed frame, ensuring it can hold the intended load.

What's used

Tools

• Marker
• Nail Gun (DeWalt DCN680) DeWalt
• Hammer and finishing nails
• Scrap Piece of Tread Material
• Speed Square

Materials

• 1.5-inch Nails

About the full video

This video demonstrates how to convert an existing round bottom stair step into a squared-off profile. The process involves building a supportive wooden frame around the original curved step using furring strips and a nail gun, creating a new, modern, squared base. This new frame will serve as a foundation for future risers and treads, giving the staircase a contemporary look. The video emphasizes the use of readily available and inexpensive materials for this structural modification.

Step 2 of 6: Install the Top Board (or Cap Rail)

Cut your chosen top board material (e.g., 1x4 or 1x6 pine) to the lengths needed for each section of the staircase wall, accounting for any corner returns. Position the top board so its bottom edge aligns precisely with the level line marked in the previous step. Secure the board to the wall studs using finishing nails or screws. Ensure the board is flush against the wall and level before fastening. If using a thicker profile for the top board, consider pre-drilling pilot holes to prevent splitting.

Open this step in the guide

Other videos for this step

• Cut and Install Top Plate
• Install Horizontal Board