The specified lumber represents a pressure-treated wooden board, commonly available at a large home improvement retailer. Its dimensions are 2 inches thick, 10 inches wide, and 12 feet long. The pressure treatment process infuses chemical preservatives into the wood to protect it from rot, decay, and insect infestation, making it suitable for outdoor and ground contact applications.
This type of lumber is valuable for its durability and resistance to environmental factors that would otherwise degrade untreated wood. Its use extends the lifespan of structures built with it, reducing the need for frequent repairs or replacements. Historically, pressure treatment has been a key factor in enabling the construction of long-lasting decks, fences, and other outdoor projects.