richardd, I'm not disagreeing with you but I have never heard of anyone getting a ticket for manure coming out of a stock trailer, lots of people have the same flooring around here that is how I got the idea, that and most boards are spaced in wood floor trailers also, several trailer manufactures in Texas build them with cleanouts down the side on the bottom so it will fall out so if that is really a law there is gonna be a lot of mad people trying to figure out how to plug those holes!! Example trailers are Easley, Hughes, and Reyes just to name a few, again not arguing just shocked