http://www.grizzlygrip.com/ There are a few other brands that are similar to it. I'm thinking instead of painting or putting linoleum down, I'll just coat the floor of the coop and about 3 to 4 foot up the side walls with it. I have it in my truck bed and it's lasted many years. I was thinking I could slope the floor of the coop to one corner, probably under the perch, and install a floor drain. The drain would be tied into 3 inch pvc pipe that I would daylight well outside my coop to prevent making a muddy mess when I spray the coop out. Once I have the drain in the floor I could just paint grizzlygrip all around it making the floor totally water proof. Seems like it would be very easy to clean and virtually undestructable. It also comes in a few different colors. It's a little pricey, but I think the time it would save would be well worth the cost. If it lasts as long as it has in my truck... I should never have to worry about the floor again! My wood hauling truck is pushing 200k and it's been in my family since it was new. lol Everything is rusting except the bed!