I have a poop board, which is great, but I've spent far too much time thinking about how to improve it. Currently it is about 2' wide, and I am going to make it wider. The roost sits in the middle, about 1' from the wall, and the board is about 1' below the roost, about 2' off the ground. My hens use the edge of the drop board to get to the roost. The problem I have right now is that when they have "squirty cecal poo" it often splatters on the wall and looks awful, so I'm going to move the roost out and make the board wider.
Currently I have 2 by 2 edges on the board and the middle filled with Stall Dry. Every couple of days I go in with a kitty scoop and sift out the poo. This works really well, but I want to mix in some dry sand so I don't need as much Stall Dry. Not sure where to get dry sand without paying for it now...