I agree with using a glass top. I did that with my new Khorns in 1982....and there is not even one blemish to the top hats. I suggest you have the edges slightly rounded and the glass slightly oversized. I hate to tell you this but when women see the Khorn.....they see a giant plant stand. When cats see the Khorn.....they see the best scratching post in the world and will tear your expensive speaker fabric to shreads. Are your cats declawed? You may want to try a plastic snake on top .....will keep the cat and wife away
James