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Anyone know of a good wood that is not treated that can be used for a retaining wall? I dont need to get 1000years of out of it.

Right below will be a garden which is why I dont want any leaching from pre-treated lumber (arsnic or copper).

I am also willing to treat with a natural oil, and dont mind doing so every year or what ever it takes.

The wall will about 3 feet high-ish. Any wood knowledgeable people who can chime in, I would greatly appreciate!

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Scientific studies have proven that any copper that may migrate from the treated wood becomes biologically inactive, thus causing no eco-toxic or other environmental impacts.

YellaWood® brand products are gentle enough to be used in raised vegetable gardens and durable enough to provide long-term protection.

YellaWood® brand products are treated with a micronized copper preservative and a co-biocide. They are treated using the MicroPro® preservative process, the first wood preservative process to be certified as an Environmentally Preferable Product (EPP) by Scientific Certification Systems (SCS).

YellaWood® brand products are available in a number of different treatments for a variety of applications. Simply by reading the end tag on each piece of lumber, the end user will be able to determine if a product is approved for use in "above ground" or "ground contact" applications.


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