Certified Sustainable Wood - It’s an excellent material for a cat tree that’s both safe and eco-friendly. A certified sustainable wood is from a sustainably harvested forest or sustainably harvested tree farm.
Reclaimed Materials - Reclaimed wood often comes from old houses, furniture and other built things which are ready for friendly reincarnation. Cat trees made of reclaimed wood are excellent examples of resource efficiency.
Bamboo - Bamboo is fast-growing, so it is an eco-friendly material for cat trees from the fact that it’s easier to maintain bamboo forests. However, when it’s made for cat trees, you need to be extra careful and ask the manufacturer regarding the glue used in the units as it may or may not contain formaldehyde.
Recycled Plastic and Metal - More and more cat furniture and trees are being produced using recycled metals and plastics. Recycled materials require fewer resources and less processing. You can help support the manufacturing and market for recycled metals and plastics by buying an eco-friendly cat tree, specifically one that’s made of recycled materials.