A. Regular cat trees are made out of plywood and/or powerful corrugated cardboard lined in either faux fur or sisal rope, which can be wrapped round the scratching posts. Modern cat trees are Generally produced from stable Wooden, but they usually have regions with sisal rope to encourage scratching. https://catfurniturecattree16579.madmouseblog.com/5707802/cat-racks-points-to-know-prior-to-you-buy