WHAT IS THE MANUFACTURER’S RECOMMENDED JOIST SPACING FOR NEWTECHWOOD DECK BOARDS?

Detailed information on joist spacing for the decking board can be seen in our installation guide, specifically on pages 5-6 on this PDF. The installation video (https://youtu.be/aADwQpSH44c) also provides some insight regarding this, starting at around 4 minutes. For North America, this is 12-16 inches, depending on application.