I have an old deck with 16" joist spacing but that was because they used 2x8 joists and span 9 ft with 3 ft overhang.
I am planning to extend the deck but won't go further than 9 ft. So with short joist span, I am thinking using Hem-fir 2x8 with 24" spacing according to this
Do you think it's reasonable? Or do I have to follow the same pattern of joist spacing when I extend the deck? The beam is 4x8x16.