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.

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Etymology

Origin of pressure-treated

First recorded in 1935–40

Example Sentences

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

Avoid pressure-treated, painted, glued, or “fake” fireplace logs, which contain chemical toxins.

From Seattle Times

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

Sheds and playhouses usually sit on 4-by-6-inch pressure-treated skids between the floor and the gravel, but the 4-by-4 pieces that support the structure now should suffice.

From Washington Post

Yet choosing humble materials like $27 worth of pressure-treated lumber for an outdoor bench that will last a half-century is not just a matter of thrift, he said, but a commentary on consumption.

From Seattle Times