Don't store mine inside but is under cover on the back half of my 28 X 24 ft chicken palace. I have it stacked, not all of it by size. I am in the process of selling some of it and cutting up smaller stuff I have been keeping for "future use", some I have been keeping for over 10 years :ashamed:. If I were to store in inside then some type of metal rack with 4-5? levels so you can sort by size. Perhaps something similar to what metal shops use to store their pipes and rods on.
If you click on the attachement their is a pic of a wooden lumber rack.