This is perfect! First it is so easy to assemble as in for once whoever engineered this had real experience assembling furniture not just designing them… all tools are included, which is always a plus. Most importantly it is fits perfectly even a large 23x16 litter box, without being too large… the cats already used it and approved… and I am looking forward to have less litter on the floor now that it is nicely contained… and the shelf  is great for the scoop and trash bag…