Choosing lumber for raised vegetable beds

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Old 10-05-13, 02:18 PM
J
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Choosing lumber for raised vegetable beds

Is the new pressure treated lumber safe to use for this? If not, is there anything cheaper than cedar I can use? Thanks.
 
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Old 10-05-13, 03:51 PM
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Most treated lumber no longer contains arsenic so from that standpoint it is safer. Treated lumber is still treated so there are chemicals that could leach into the soil. My big problem with the very latest treatment is the very low amount of treatment applied to most 2 x lumber and comes with a statement that it is for above ground use only and not for ground contact. It would probably last several years in a raised bed garden but that's not long enough in my mind for the work involved.

Is there anything cheap? No. In my garden I used pressure treated lumber that is treated to a higher level and lined the beds with 1/4" thick HDPE plastic sheets so the soil does not touch wood. Durable yes, cheap no. Long ago I made some beds with the old arsenic treated lumber and lined the inside with galvanized steel before adding the soil and they are still going strong.
 
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Old 10-05-13, 07:48 PM
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Thanks. I need to figure out what to do.
 
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