3 ms·
> "pressure treated wood" is treated with a compound of arsenic. It depends--I am assuming you're referring to chromated copper arsenate [0] (CCA), which has b
by jihadjihad 2y ago
> "pressure treated wood" is treated with a compound of arsenic.
It depends--I am assuming you're referring to chromated copper arsenate [0] (CCA), which has been widely phased out in favor of other treatments, like copper azole [1].
I wouldn't go and build a raised garden bed out of copper azole treated wood either, but I also wouldn't be surprised if the leached copper etc. is quite a bit safer than CCA.
0: https://en.wikipedia.org/wiki/Chromated_copper_arsenate https://en.wikipedia.org/wiki/Chromated_copper_arsenate
1: https://en.wikipedia.org/wiki/Wood_preservation#Copper_azole https://en.wikipedia.org/wiki/Wood_preservation#Copper_azole
- colechristensen 2y agoCCA is restricted in some residential applications, but it is still very much for sale for industrial and some structural uses. Most pressure treated you will find won't have it any more, but not all. https://www.menards.com/main/find.html?find=CCA+treated.&skipKeywordInCategory=true&Spec_ProductType_facet=CCA+Pressure+Treated+Foundation+Lumber&Spec_ProductType_facet=CCA+Pressure+Treated+Lumber&Spec_ProductType_facet=CCA+Pressure+Treated+Timber&Spec_ProductType_facet=CCA+Wood+Fence+Post https://www.menards.com/main/find.html?find=CCA+treated.&ski...