Birch plywood and a 1.2-in double-thickness base are the structural points here, and they show in the 39-lb weight and the steadiness of a 60-in frame. The condo runs two storeys at 15 x 24 in with an 8 x 7 in entrance and an 8-in cat hole between levels, so cats move inside rather than around. A 16-in perch and a 12.5-in hammock add open resting spots. Each layer holds 33 lbs. Anti-slip footpads and rounded corners protect floors and paws. Base footprint is 27.5 x 15.5 in.