[Greenbuilding] best lumber for raised vegetable beds

natural building naturalbuilding at shaw.ca
Thu Apr 14 08:22:01 PDT 2011

Why does it have to last 40 years?
What's wrong with using something natural and replacing it every 10 - 15?

Steve Satow

naturalbuilding at shaw.ca

On 2011-04-14, at 7:41 AM, Tim Vireo Keating wrote:

> The problem with cedar that will actually last 40 years in ground contact is that it is likely from old-growth. Young cedar doesn't last nearly as long as the old-growth "clear" stuff. Which is why Weyerhaeuser bought MacMillan Bloedel, then Canada's largest forest-products company, to get access to the last stands of big old-growth Western red cedar left in the world. Now they are the top cedar provider. But it will soon be gone, since the second-growth stuff didn't work for them (because it didn't work for the user).
> RPL is often the way to go when looking for durability in exterior applications.
> Sure, the cedar will eventually become part of Mother Earth, but is that really what we're looking for? How about, when the project is done, taking the material up and recycling it? No impact on forests at all.
> tim keating

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