OKAY THIS IS ABSOLUTELY FABULOUS. i WAS EXCITED TO ORDER IT THEN i READ SOME BAD REVIEWS AND WAS AFRAID I WAS GOING TO HAVE TO RETURN IT. MY CAT WALLY IS A BIG CAT. NOT FAT BUT BIG. I WORRIED ABOUT THE SIZE OF THE HOLES ON THE HOUSES. MY FRIEND AND I HAD NO TROUBLE WITH PUTTING IT TOGETHER. AGAIN SIMPLE TO READ AND EAST INSTRUCTIONS. MY BEDROOM HAS A SLANTING SEALING. THE TOP OF THE SOUTH SIDE IS ONLY 72"  SO ONLY MAYBE 12" IN LEFT. MY CAT LOVES IT AND SO DO I. I NEVER IMAGINED IT WOULD BE SO BIG BEAUTIFUL AND THIS NICE. I'M VERY PLEASED