Additional Product Information

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Douglas Fir
The wood species is Douglas Fir, a common structural softwood used in construction.

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Green
The lumber is not kiln-dried. It still contains a higher level of natural moisture.

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Surfaced Four Sides
All four sides of the board have been planed smooth and squared. It is ready to handle and install without additional milling.

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Home Center Grade
This is a retail-grade product intended for big-box stores. It meets standard consumer expectations but is not premium or specialty grade.

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CAC (Copper Azole Type C)
A modern, environmentally accepted preservative used to protect the wood from rot, decay, and insects.

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Flood Treated
The lumber was pressure-treated by fully immersing it in preservative, ensuring penetration throughout the board.

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Unincised
The wood was not mechanically punctured before treatment. It has a cleaner appearance but slightly less preservative penetration than incised lumber.

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Incised
Before treatment, the wood was mechanically perforated with small, shallow slits. These cuts allow the preservative to penetrate deeper into the lumber, providing improved protection against rot, decay, and insects.