Cats and treated wood
I am building a deck for my cat enclosure. I wanted to know if treated wood is safe. As they will be walking on it alot
There's really nothing in the treated lumber that will impact your cats' health. If you want to increase the life of the decking surface and reduce splinters (from the cats scratching you might consider the "lumber" made from recycled plastics instead. It's more expensive but may give you more peace of mind.