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  • was being lazy as I don't have my workshop setup yet and ordered an overpriced decking step kit from b&q so I can just assemble it and not have to fuck about with cutting things to size while in the middle of the full house redecoration.

    I am going to own my ignorance completely here, the package turned up completely soaked inside the plastic wrap and half the planks are green with dark green splotches.

    is this a byproduct of the pressure treatment or just plain old mold like I suspect it is?

    I realised putting moldy planks on the deck was a bad idea as soon as I took this pic so they are drying out in the sun with a sheet of plastic under them now.

  • is this a byproduct of the pressure treatment or just plain old mold like I suspect it is?

    Yes. It's a chemical treatment residue; the stuff that's forced in to the wood fibres when it's pressure treated. It disappears over time.

  • It disappears over time, and the wood warps to fuck.

    ftfy

    Any of the big box stuff I've bought has been literally dripping with tanalith.

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