Building a deck

[terracore]

The stuff is amazing. Over the years you could see untreated lumber virtually dissolve but the treated stuff didn't change at all. Horizontal boards (like decks) that never saw sunlight under the forest canopy would get slimy (and slippery) but a good blast from a pressure washer and it was like new again. Untreated lumber, your foot would go through the boards after a few years. There is an environmental footprint to the toxicity but I'm wondering if the environmental footprint of replacing structures / lumber or having to tent buildings / use insecticides makes using the treated lumber the most environmentally responsible option.