I am going to build a poop board and would like to know about the width of it. I will take it back to the wall but wondering how far out in front I should take it? I have noticed the girls on the roost when I go to shut up the coop at night and at that time they all seem to be facing out away from the wall. So wondering how far out to take it. I have plywood to use as the surface so should I paint it first or cover it with something to make it easier to clean? Also is it alright to go ahead and use the pine shavings I use on the coop floor or would you recomend some thing else? I have short arms so I will need to buy some sort of tool to reach clear to the back. Can you recommend a tool that you have used.