Is It Safe to Use Pressure Treated Wood for Kitchen Island Reinforcement?
When considering the use of pressure treated (PT) wood for reinforcing a kitchen island's pony wall, several factors come into play, including safety, stability, and chemical concerns. This article aims to provide a comprehensive overview to help you make an informed decision.
Understanding Pressure Treated Wood
Pressure treated wood, as the name suggests, undergoes a process where it is saturated with chemicals to protect it from rot, insects, and fungi. While this process makes it ideal for outdoor use, especially where it comes into contact with soil, it poses certain challenges for indoor applications.
Outdoor Versus Indoor Use
Outdoor use, particularly in contact with soil, is where PT wood excels. The chemicals used in the treatment process protect the wood from decaying. However, in indoor settings, especially when in contact with food, the suitability of PT wood becomes questionable. One reason for this is that PT wood, despite its treatment, may still contain residual moisture and chemicals that are not entirely safe for direct contact with food.
Chemical Safety and Health Concerns
The chemicals used in pressure treating wood can pose health risks if ingested or inhaled. For example, the older CCA (chromated copper arsenate) treatment was used in the past and was effective for ground contact use. However, the newer treatments, such as ACQ (ammonium copper quat), typically used for indoor applications, are considered safer but still present possible health risks. Cutting PT wood releases harmful dust, which can cause irritation and other health issues. Therefore, using PT wood indoors is best avoided unless strictly necessary, and especially in areas where food is prepared.
Practical Considerations for Kitchen Island Reinforcement
If you need to reinforce a kitchen island's pony wall, there are a few practical considerations to keep in mind:
Corrosion-Resistant Fasteners
If you choose to use PT wood, it is essential to use corrosion-resistant fasteners. The chemicals in PT wood can corrode conventional fasteners, leading to potential failure over time.
Moisture and Stability
PT wood, by its nature, remains quite moist for an extended period after treatment. This moisture will eventually evaporate, but it can take a long time. Until it is properly dried, PT wood is susceptible to changes in dimensions due to moisture expansion and contraction. This can lead to warping and splitting, making it unsuitable for applications that require precise dimensions.
Stable Sources of Lumber
While PT wood can be used for structural support in kitchens, it may not be the best choice for cosmetic or functional elements where precise dimensions and stability are critical. Untreated or less treated lumber, such as Southern yellow pine or even less expensive pine, can offer similar structural support without the health and safety concerns.
Conclusion
In summary, while pressure treated wood can be used for kitchen island reinforcement under certain conditions, its use indoors, particularly in areas where food is prepared, may pose health risks. Using untreated or less treated wood is often a safer and more practical option. Always consider professional advice and the specific needs of your project when making decisions about the materials you use.