"Scott Downey" ) writes:
even antifreeze treated wood will dry out again
I wonder if the deck boards could be removed, reworked and relaid without
the gap.

when wood planks get wet and expand too much the fibres along the edges
are crushed. when it dries out permanent gaps open up. the wood cannot be
put back in its original shape to close the gaps. however if the wood only
dries out and gaps open up, then wetting the wood will close the gaps.

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