The most common replacement wood preservative treatment you will find today in treated lumber is ACQ, which stands for alkaline copper quat (a mix of copper and a quaternary ammonium compound ...

From my own experience, I have been amazed at how quickly ordinary metal hardware and nails can corrode when used with ACQ wood. "Please read up on this issue and warn people instead of giving ...

In addition, unlike ACQ and CA, borates do not bond with wood all that well. The new treated-lumber varieties cost about 10 percent more than the old lumber–some say 20 percent more, depending ...

While these chemicals, which nowadays are usually alkaline copper quaternary (ACQ), copper azole (CA), copper-HDO, or copper naphthenate, help the wood last longer, especially under less than ...