What are the differences between pressure treated wood and sealed wood in terms of their durability and resistance to environmental pressures?

Pressure treated wood is treated with chemicals to resist decay and insects, making it more durable and resistant to environmental pressures compared to sealed wood, which is simply coated with a protective sealant. Pressure treated wood is better suited for outdoor use and can last longer in harsh conditions. Sealed wood may require more maintenance to maintain its durability over time.