Thread: Treated lumber?
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Old September 17, 2015   #20
Zenbaas's Avatar
Join Date: Sep 2015
Location: South Africa
Posts: 328

If arsenic leaching is an potential issue why not line the part of the wood in the raised bed that is in contact with the soil with thick building/contractors plastic..?

It will aid in moisture retension and also slow down the degradation of treated or untreated wood for that matter. Just a thought.
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