Many homeowners choose pressure-treated wood for their decks, porches, and other outdoor structures. Crawl space floor joists can, however, be constructed from pressure-treated lumber. Termites, rot, and decay are no match for the wood’s resistance to pressure treatment.
Do I need pressure treated wood for floor joists?
For the following uses, pressure-treated or naturally durable wood is typically required by building codes: Soil-exposed joists or the bottom of structural floors without joists. Over 12′′ of exposed soil on girders or beams.
What kind of wood is used for floor joists?
Species of WoodA few of the most common woods for floor joists to be made from include red and hemlock, as well as fir and pine from the southern United States.
Can I use pressure treated wood for subfloor?
No need to worry about making treated wood that is completely covered in other materials and hidden from access, such as sub-flooring, safer. There are no harmful gases or particles released by pressure-treated wood.