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pressure-treated

American  
[presh-er-tree-tid] / ˈprɛʃ ərˌtri tɪd /

adjective

  1. (of wood) treated with a chemical or chemicals applied under pressure to reduce such problems as insect infestation, decay, and rotting.


Etymology

Origin of pressure-treated

First recorded in 1935–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The decking company built its business on composite boards made from sawdust and recycled plastic shopping bags, which it pitches as more durable than pressure-treated lumber.

From Barron's Nov. 7, 2025

Dick Treacy, who lives down the road, said Dufault, a florist, came to his house earlier this month to pick up pressure-treated wood he’d flagged in the local Buy Nothing group, he said.

From Washington Post Apr. 19, 2023

The rest of the structure was built from off-the-shelf materials like pressure-treated lumber for framing and corrugated metal for the roof.

From New York Times Nov. 29, 2022

Another good application for an elastomeric coating is when the decking is made from pressure-treated wood.

From Seattle Times Jul. 14, 2021

“I got a call come in at four-thirty needing a load of pressure-treated for a deck. Five-hundred-dollar order. And guess what? I didn’t have nobody to deliver it.”

From "The Serpent King" by Jeff Zentner

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