I am trying to wrap up m coop. and somewhere on here I saw someone with a roosting table. basically a table with a roost above it. (can't find it back) The theory is to clean the litter out from on the table I guess where most of the poop is. Is this something worth doing.? I have the "table" to do this. or should I just go with the roosting bars. Also, I have about a twelve foot long coop. How much roosting area do 16 chickens need?