Once you get your flooring down, make sure to pile it high with bedding. I use pine shavings in my coop and covered run, some people use sand or straw... but you don't want those materials to get wet. If your run is exposed to weather, add a deep layer of chunky wood chips, they'll last a long time, probably a couple/few years.
You could also put a poop tray under the roosts and fill it with a shallow layer Sweet PDZ. You just scoop it out like cat litter and it keeps ammonia fumes away. The other bedding material in the coop can just be added to every so often and mixed in with the old, similar to deep litter method. I only change out the bedding about once a year and let it finish composting in a pile and the following year it's beautiful garden soil.
