cbryancu t1_iug95qb wrote on October 31, 2022 at 2:15 AM

Span is support to support But it is different for decks depending on the distance between joists, the type of wood used (treated wood can be made of several species depending on where you live), and is reduced in northern areas that get heavy snow loads.

Your deck blocks should be under your beams (dbl 2x6) and the middle deck blocks would need a beam. Supporting 1 joist midway, but not the next one is not proper.

bhillen83 t1_iuhuqkg wrote on October 31, 2022 at 1:30 PM

This is it. Span tables vary depending on joist spacing, type of lumber and snow load.

OrangeYouGlad100 OP t1_iui2azl wrote on October 31, 2022 at 2:27 PM

"Your deck blocks should be under your beams (dbl 2x6) and the middle deck blocks would need a beam. Supporting 1 joist midway, but not the next one is not proper."

For both of those things, I took inspiration from these plans:
https://gardenplansfree.com/furniture/deck-plans-free/

which have essentially the same setup for a 12x12' deck with 2x8's.

Are those plans no good, or are my deviations from those plans no good?