What Should A Deck Board Spacing Be? - DecksDirect
Proper Deck Board Spacing: Last Guide You'll Ever Need
Deck Board Gap Spacer Tools | Perfect Board Spacing Jig
Deck floor board spacing gaps: Proper gap size to leave between deck boards for drainage and drying, and extra steps to take to protect deck joists from rot.
Inconsistent/large deck board gaps : r/Decks
Deck Building project - Installing decking boards - Step by step breakdown