January, 2008, I bought these stairs, specifically for Marlin.
Of course, all the dogs use them -- and the cats do as well! Why jump when you can step? lol. The cats also scratch the rug pillars.
I need another set of stairs, about the same height. The ones I have are no longer made; and most stairs of a 30 inch height are EXPENSIVE!
So I searched online, found DIY plans and adapted it for what I need. I hope to make them this weekend. I did this in "Paint." I will have to cover the foam board with fabric of some sort as the cats will want to scratch.