Here are the things you will need:
- PVC pipe
- 2 wood discs slightly smaller in diameter than PVC pipe
- 1″ screws
- hot glue gun and sticks
- hack saw or reciprocating saw
- three 8×10 angle brackets
- 1/2″ drill bit
- drill
- 3/8″ rope
- #10 wood screws
- 3 wicker baskets
Source: http://www.hgtv.com/decorating-basics/how-to-make-a-cat-condo/index.html