Is Deck Wood Treated

Generally, pressure treated (aka ‘PT’) wood is used in the construction of decks, pergolas, and sheds.

How do I know if my wood deck is treated?

Check the piece of lumber for a stamp or label that designates it as pressure-treated wood. An end tag like this should have the name of the preservative used on the wood, as well as the rating, preservation company, and other related information.

How can you tell if lumber is pressure treated?

How Can I Differentiate Treated Lumber? Most pressure treated lumber will have an end tag to identify what type of chemicals it was treated with and whether it is rated for “ground contact” or “above ground use” only.