We are buying a small hay barn, well 4 metal sides and a roof, which we will pin to the ground and we hope to move our currently inadequately tarp covered small baled hay into it. We are complete novices. Should we put the tarps on the geound under them? Should we aim for a solid block of bales centrally placed, or a different lay out, say around the edges, or in rows? How many bales high is it safe to stack? All advice gratefully received.