Ikea hack Billy cat climbing shelf (site is in Finnish)
Gimnasio con pallets
Amazing custom cat tower for cats that already have everything else. This is awesome.
DIY: How to build a Cat Tree (have fun, make it perfect for your cats and save a ton of money!)
inexpensive cat furniture - Google Search
We found the ultimate cat castle! This is a great idea to keep our indoor cats busy. Discover more pet accommodations on our site now at http://theownerbuildernetwork.co/j0ma Is this something your pampered feline would love to have?
Homemade Cat Tree by fennelgrl, via Flickr If I get this one made, I will use jute rope for the posts and material/carpet to lay on.
DIY cat trees. Let's pretend I'm going to make one of these someday for Bea Arthur.
#Jada really likes this! The hole in the drawer and top cat window are amazing!Pet-Friendly Architecture - The Plus-Nyan Cat House (GALLERY)