Treated wood is wood that has gone through a treatment process with chemical preservatives to protect it against pests and environmental conditions. Typically, treated wood is used in exterior applications where ground or water contact is likely.
Treated wood can often be visually distinguished by its appearance. There are several signs to look out for when determining if a piece of wood has been treated or not. What are some things to look for when determining if wood is treated or not?
- Treated wood end tag
- Wood manufacturer stamp codes
- Indentations on the surface of the wood
- When cut, staining is visible around the perimeter only
- Discoloration (e.g. green or dark brown appearance)
Example of treated wood end tag.
Example of wood manufacturer stamp codes.
Example of pressure treated wood showing indentations from treatment.