By the end of the month we hope to pour concrete for our new outbuilding/shed which will measure 16x24. An 8x16 section will be reserved for my chicken coop. Which got me thinking... When we have the soil scraped off and the crushed gravel and base of sand put down in preparation for the concrete, should I have our guy scrape off the topsoil for the chicken run and put down a substantial layer of sand for the future chickens? Background info: the run will be a back section of our way too large garden, so there is no established grass on it now. We have 18" of lovely top soil above 10 different colors of clay. We're talking heavy, heavy clay. Three people have chickens in our area and I've seen plenty of hens belly deep in mud. The topography is a very gentle slope to the north which allows water to drain pretty well, but after a good rain the garden will hold water for a good long time. Our run will be 12X24 and we'll have a laying flock of about 15 birds and a separate section of the coop for our meaties which will have their own outside area apart from the laying flock. It wouldn't cost much extra to put the sand in now. So, I bow to your collective knowledge and vast expertise. Should I do it?