How does eucalyptus’s moisture resistance compare to pressure-treated pine?

When comparing eucalyptus and pressure-treated pine for moisture resistance, several factors come into play. Eucalyptus is naturally resistant to moisture and decay due to its high oil content, making it a durable choice for outdoor applications without chemical treatment. Pressure-treated pine, on the other hand, relies on preservatives like copper azole or alkaline copper quat to resist moisture and insects.

While both woods perform well in wet environments, eucalyptus often outperforms pressure-treated pine in long-term durability, especially in ground-contact scenarios. Pressure-treated pine is more widely available and cost-effective but may warp or crack over time. For projects like decking, fencing, or outdoor furniture, eucalyptus offers a sustainable, low-maintenance alternative with superior natural resistance.

Ultimately, the choice depends on budget, availability, and project requirements. Eucalyptus excels in moisture-prone areas, while pressure-treated pine remains a reliable, economical option.