1. Fix the upper joists to the lower ones by using screws

2. Fix the side clips onto the joists first.

Push the deck board tight to the side clips. Suggested length for actual application is not longer than 2.75 meters per piece.

3. Put the special clip with a side hole into the middle of the decking side groove.

Make sure the toothed side is in the decking groove. Screw through the side hole and fix the clip to the decking board.

4. Put the normal clips for the rest. Make sure the toothed side is in the groove.

Slide another board to the clips to the right position. Fix the decking through the top holes of the clips.

5. Repeat the steps above for the decking installation.

Make sure the gap between cross sections of decking boards is no less than 3mm. Make sure 10mm gaps in the walls for the expansion or contact.

6. Pre-drill a hole as per the image shown below and then screw the decking board to the joist.

Fix the fascias. Job finished.