Wood Framing
This information reflects our best understanding of product composition in 2022.
This CP describes sawn lumber intended for light structural framing, also known as dimensional lumber. Softwood species are typically used for framing lumber and are cut in standard dimensions. Commonly used dimensions in framing include 2x4 and...
This CP describes sawn lumber intended for light structural framing, also known as dimensional lumber. Softwood species are typically used for framing lumber and are cut in standard dimensions. Commonly used dimensions in framing include 2x4 and 2x6 inches. Because the lumber is intended for interior applications, it is not typically pressure treated. Instead, the lumber is sawn from logs to the appropriate dimensions and air or kiln dried. Then, to prevent discoloration from microbial growth known as sapstain from forming, lumber members are dipped in a bath or sprayed with a fungicidal treatment that inhibits the growth of microbes naturally found in freshly cut timber. Antisapstain treatments commonly contain a variety of antimicrobial chemicals, the exact combination of which will vary based on specifics such as geographic region and wood type. See the All Contents tab for additional antimicrobials that may be present in antisapstain treatments. Treatments provide protection from microbes for approximately 3-6 months depending on conditions.
A historical version of this CP is available here: Historical: Wood Framing - 2015.