Hi all - we are in the process of completing a previously half finished coop and it doesn't have a droppings board in it under the roost. Can someone describe to me what this is, how it should be attached and point me in the direction of any pictures, if possible? Also it looks like they are using a 1 x 2 for the roost. I'm thinking this isn't wide enough but you all would know best. Should I replace this? Thanks!