Install and Fasten the Filler Piece

What happens here

Once the composite piece is cut to size, carefully insert it into the diagonal gap in the existing decking. The video demonstrates using a specialized composite decking fastening tool (often a jig that holds the screw at the correct angle and depth) along with an impact driver and decking screws to secure the filler piece. Drive the screws through the pre-drilled holes, ensuring the piece sits flush and is firmly attached to the underlying deck structure.

Goal: Securely install the custom-cut composite piece into the deck gap.