My crew loves to poop right at the door.I solved this problem by getting a piece of plexiglass & making a door just the right size to step over while keeping the ferts in. Lowes,Home Depot, sell shetts of plexiglass,pretty inexpensive.Get some hinges,screen door latches,1x2 boards,4 of those if a wide door. Cut your plexiglass & then make the frame to make it sturdy.Mine love to look at at the twins who are on the other side cooing at the ferts. Hope this helps some. [Posted in FML issue 3683]