Many pressure-treated lumber manufacturers recommend using only stainless steel or hot-dipped galvanized nails, screws, bolts, anchors, and connectors when working with the material.

He explains only CCA-treated wood is prohibited to be manufactured. CCA (Chromated Copper Arsenate) has been replaced with a new preservative, which is copper based -- instead of arsenic based.

Pressure-treated lumber made since 2003 no longer contains arsenic and is considered to be "safer" for use in gardens. However, anyone concerned about copper or other metals or chemicals leaching ...

Modern pressure-treated wood treaters use alternative solutions, primarily Micronized Copper Azole (MCA), and prior to 2020, Alkaline copper quaternary (ACQ).

Because copper is highly toxic to marine life, ACQ is not recommended for aquatic environments. The wood is expected to last as long as CCA-treated lumber. In late 1997, ACQ-D came out on the market.

In the meantime, copper-based ground-contact lumber is the best-selling consumer pressure-treated lumber, and some stores are phasing out non-ground-contact wood to reduce customer confusion about ...

All pressure-treated wood is not the same, however. The difference is in the type of preservative used. Chromated copper arsenate, generally known as CCA, has been used in the United States for ...

This popular lumber — known as CCA-treated wood — will not be sold for home use after December. In 2002, the Environmental Protection Agency and the wood-preservative industry agreed to phase ...

What is treated wood? We will take you through different kinds of lumber you can use for various projects, and especially when and where to use treated wood.

If you decide to use pressure-treated lumber for a project, it is important to choose the boards carefully, observe all safety precautions and wear safety gear. First, choose a lumberyard that will… ...

This popular form of lumber, known as CCA-treated wood, will not be sold for home use after December 2003. Last year, the Environmental Protection Agency and the wood-preservative industry ...