I've read a lot of different styles of reccomened roosts and wondering what everyone thinks is the best? I think I want to build an L shaped platform as a poop shelf along the to left sides inside the coop so along one 8' wall and to the left of the people door in front of a window so maybe 4 feet or so. We plan on having a mix of 12 hens mostly larger egg layers,reds, wyandottes, orpingtons, maybe some jersey giants or arcana etc. I've heard most use 2x4s but I'm confused if they should be installed upright or flat, maybe both? And are 2x4 really best?