The top perch is woven from cattail rather than covered in fabric, so it breathes underneath a cat on a warm day, and the cushion on top lifts out for washing when it needs it. Below, an 18 x 16 x 12 in condo with an 8.5-in round entrance gives a private, shaded retreat. Six sisal posts wrap the uprights - more than most towers of this size. The frame stands 52 in on a 23.5 x 19 in base, holds 22 lbs per layer and weighs 35.5 lbs. Engineered board and plush complete the build.