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Joined: Mon Apr 13, 2009 11:40 pm
Location: Penna

Very old treated wood for raised beds?

We have dismantled our pool deck, it was all treated wood and was in place above ground for 20+ years. The wood was good enough to make 8 beds 12" deep. Question is, do I need to be concerned with leaching of chemicals in the very old, dry - yet suprisingly very usable wood? Beds are made 4x12, we are just filling them 4/13/09. Thanks!

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Green Thumb
Posts: 547
Joined: Sat Feb 14, 2009 10:59 pm
Location: South Dakota

If its an older wood you may need to worry about arsenic leaching out into the soil. Cover it with a thin layer of plastic. The older the wood the more chemicals that it was probably treated with.

Green Thumb
Posts: 616
Joined: Thu Jan 08, 2009 9:04 am
Location: Ohio

If you treated the pool with chlorine, that too may be built up in the wood and leach out. I think, I'd put a plastic barrier down.

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