Step Four: Install the final two boards
1. Knowing the width of the final two boards (including the gap between them), mark on the final joist where the edge of the last board will lie.
2. Now, as you did when laying the first board, use your markings to screw your hidden starter clips at each end of your frame, and at the top of the frame’s joists at regular intervals in between.
3. Push the final board up against these hidden starter clips, clicking it into place.
4. Further secure the final board to the frame by screwing special clips into each joist and into the side groove of the final board (on the side facing the rest of your previously laid decking)
5. Now, take your penultimate board, and at an angle push one length of it against the exposed special clips of your final board, clicking it into place.
6. Finally, slide your last special clips along through the gap on the other side of your penultimate board, between the 2nd and 3rd last boards, and when you have positioned them in the centre of each joint, screw these into place.