Decking pedestals are typically spaced apart based on the size and weight load of the decking material being used. This spacing allows for even weight distribution and helps to prevent sagging or warping of the decking surface over time. The spacing for decking pedestals can vary depending on various factors such as the type of decking material, the size of the decking tiles, and the overall support needed for the deck. In general, the spacing for decking pedestals can range from 11 inches to 20 inches apart.

For lighter decking materials or smaller decking tiles, you can space the pedestals closer together, typically around 11-16 inches apart, to provide better support and stability.

For heavier decking materials or larger decking tiles, you may need to space the pedestals farther apart, around 16-20 inches apart, to ensure adequate support and prevent sagging or instability.

It's essential to follow the manufacturer's guidelines for the specific decking pedestals you are using to ensure proper spacing and support for your deck. Improper spacing of decking pedestals can lead to structural issues and safety concerns.

If you are unsure about the appropriate spacing for your decking pedestals, it's recommended to consult with a professional contractor or decking specialist to help determine the optimal spacing based on your specific project requirements.