You might be referring to 'pressure treated' lumber, or lumber that has been milled but not dry.
PT lumber is regular wood with a chemical preservative which has been forced to penetrate the wood using pressure.
Yes, pressure treated lumber may shrink over time as it dries out.
To determine if lumber is pressure treated, look for small incisions or punctures on the surface of the wood, which indicate that chemicals have been forced into the wood under pressure. Additionally, pressure-treated lumber is typically labeled with a stamp or tag indicating that it has been treated.
They come from the Rain Forests
yes it can
There are chemical used in the pressure treatment that may be harmful.
To treat lumber for longevity and durability, you can use pressure treatment or apply a wood preservative. Pressure treatment involves placing the lumber in a chamber and forcing preservatives into the wood under pressure. Wood preservatives can also be applied by brushing, spraying, or dipping the lumber. These treatments help protect the wood from decay, insects, and other environmental factors, extending its lifespan.
You can find affordable pressure treated lumber for your project at home improvement stores like Home Depot, Lowe's, or local lumber yards. Be sure to compare prices and quality before making a purchase.
Yes, you can paint pressure treated lumber, but it is important to allow the wood to dry completely before painting and to use a primer specifically designed for pressure treated wood to ensure the paint adheres properly.
Pressure treated lumber is not recommended for indoor construction projects due to the chemicals used in the treatment process, which can be harmful if exposed to indoors. It is best to use untreated lumber for indoor projects to ensure safety.
Wood (lumber).