I was looking at building a cat tree, but then came across this website -

http://www.katwallks.com/

Even if you don't think they're for you - watching the videos of the cats playing on the shelves is fun!

They are basically carpeted shelves that you put on your walls to turn the whole wall/ room into a cat gym! sure looks like fun and would be VERY easy to cover some boards with carpet and mount them on the wall. the hardware they use to mount the shelves at any angle is simply the same hardware used for stair handrails - so it's easy to get at any hardware store.

Since my house doesn't have alot of floor space to dedicate to a cat tree, these will work better for me - and Pixel LOVES being up 'high'.

Also, when you build a cat tree, I think I read somewhere that you want to have 2 square feet of base for every 2 feet of height over 3' - so the taller you build, the more base or anchoring it's going to need - esp if you have more than one cat, or a heavy or athletic cat that might tip it. You can also 'anchor' it with a brace to the wall or ceiling.

laura