I just got a bin off a guy from the lancaster area that was very reasonable in price. He used 2x6's and used tin roofing nice and heavy and well structured. I have pics if anyone is interested in looking at them. I told him about these forums and how ive been looking for bin plans or bins to buy for awhile and had no luck. Im posting this for anyone who had the same problem i had. Make sure to give me your email address being the size might not be allowed on these pages.