Hi all...I am new to this board and is my first post. I already have a screened in porch but want to put up a cat enclosure next to the porch accessible by a cat flap. For those of you who have already done this, should I put anything down for a floor or just leave it as is....the lawn? I can't put concrete down. I was thinking about getting a chain link fence kit from Home Depot that is about 10 x 10 I think and about 6 ft high. Any thoughts? Experience? I have 8 cats. Thanks, Brenda