I had not had poop boards in previous coops - but when I got back into chickens this past spring it was THE thing that I saw here that really stuck out as a genius "must have" for my coop and I will never go back. Our birds do not roost on the edges at night, but will occasionally use the edge as a way to get every so slightly closer to us when we are in the coop doing chores and they are trying to get some attention...for their actual roosting they all go right up onto the actual roost bars. Poop does get on the outside edges of the poop board - just nature of the design we used which has two roost bars that are each just close enough to the front or back edge of the poop board to allow for some misdirected poop to land square on the edges. It's really no big deal as it easily scrapes off with the scoop I use while cleaning the poop board, but it is unsightly. Were I to build it over again I'd have just one bar, placed direct center over the poop board and this would eliminate that issue as the birds rears would be over the actual poop board, not the edge, no matter how they were faced - we have way more actual roost space available than the birds ever use, so I may still make the change this summer.