Q. Can I stain and water seal the lumber before I install the pergola? For pine pergola kits, stain or water seal after installation and the lumber has dried.. If you order a pressure treated pine pergola you will have to wait a few months (depending upon your climate and weather conditions) after it is installed in order for the lumber to be
Dangers Of Pressure Treated Wood CBS News. https://www.cbsnews.com/news/dangers of pressure treated wood Citing health risks, this week the EPA halted the production of some pressure treated wood the most commonly used material in structures such as decks, play sets, and fences.
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