Cat trees are an easy and fun thing to make, as you can utilize scrap wood and leftover materials to make something your feline friends will love. I'm especially digging the ones that make use of real branches for an organic look.It good looking and not much money on it.
Saw the wood into the shape you want, Sandpaper the boards smooth with abrasive paper from amazon
Nailed the trunk on the board
Nailed the 2 floor board
Paint the base board into black , or any color you like,
Assembling all ...