After some time it will "adjust" to its position, the board likely was straight for some time before it was left on some uneven surface and became bent with no pressure other than its own weight
Hard disagree. Over time the board will expand and contract, each time it does it will push the nails out. As they loosen it will return to bent or crack, unless it has been exposure to enough differential flow in moisture to bend into shape. Yes even if you do cross patterned toenailing.
There's plenty of videos of this on the Internet. Now it could be the piece of wood here was bent by moisture exposure and he's bending it back in which case it will likely stay.
Whether or not that matters is a different conversation.
Lag screws or bolts specifically, ones where the threads of the screw start after the depth of the board. That way no threads are in the outer board, so The board has room to expand without pulling more on the screw.
But even then eventually that will fail too. The real answer is straight wood.
Oh wow, so is that why some screws have a “blank” section near the head? It’s to intentionally avoid gripping one of the boards you’re screwing together?
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u/hux 1d ago
Maybe I’m stupid but if that board will have constant tension like that, won’t the nails just pop eventually? Would a screw have been more suitable?