Purchased a 10x10x8 shed in a box December of 2015. The cover didn't last a year. As of September of 2016 it has frayed and torn at the bend between rafter and wall. Shed is anchored on a 4x4 framed platform, square and level. The cover should last more than a year! Also have a 12x20 greenhouse (Shelterlogic) The cover on the greenhouse disintegrated in less than 2 years. The covers are not up to the same standard as the frame.