Lazy this winter but back on my project . Have had a couple questions. What I am using on the sides is Nudo 3mls. Aluminum both sides poly in the middle, buying it for $60 4' x8'. Good on 2' centers. Good on fence also. Rivets very good. Can't bend it in a break but can shear or saw. The floor and studs held up very well in the weather this winter. Be finshed with the outside this weeks. Have a question, the plugs in the toons are they standard? if so what size? Mine crumbled when I tried to take them out to test toons. I guess an ez out will get them out? 3lbs max right. Thanks