I am starting construction on my coop and run. The coop is going to be about 5 1/2 ft by 12 ft and the run is being debated, but likely in the 4-500 sqft range. The run will have 2x4 wire fencing in the 4-6' height with hardware cloth around the bottom. Eventually I want to let the chickens free range during the day, but it will depend on how the dogs do with the hens and I want somewhere to keep them when we are not around. The coop is an existing shed that already has a 2x6 floor. I plan to use DLM. So here is the question, should I just use the existing 2x6 flooring in the coop or put down sheets of plywood over the 2x6s? I think the 2x6s with slight gaps will allow the fluids to drain better, and shouldn't create any problems, but wanted to get some backup.