Do I need hidden decking fasteners on both sides of a joist

deckfastener

I am thinking about using the below fasteners with wood planks. Do I need them on both sides of the joist?

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Update: Deck framing layout below (height is 46") House located at the south east corner of the picture (along that side of the deck)
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Best Answer

This instruction sheet from Deckmaster has you installing on only one side, but alternating sides for interior joists, and adding extra bracket sections for decking splices.

I suggest that you follow manufacturer guidelines for your product.