I had a closeboard fence built last year, triple morticed with wooden posts. I've noticed that there is now about a quarter inch gap between the post and the vertical board adjacent to each side of the post as if the board has shrunk. There is a 1 inch overlap on each board but don't know if these have shunk. Would the closeboarding shrink that much? I believe the wood was treated but has not been painted.
Dave
Simple answer Dave is yes - especially if the boards had recently been treated and had a fairly high moisture content at the time of fitting and the are where you live has been relatively dry and windy.
The size of the gaps are probably a combination of the shrinkage of the post and boards.
Cash
"they all do that sir"
"wood is a natural product"
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