Keaton and Scoochie decided to take matters into their own hands (or paws) by designing and building customized cat shelves to suit their climbing needs. They chose to use IKEA shelves with the stainless side down, topped off with some very nice FLOR carpet tiles. The photo below shows the duo planning the project. What excellent craftsmanship, considering they have no opposable thumbs!
Their mom, Julie, documented the process here.