Resin sheds are ... like giant screws, and come as long as 46 inches. Once you've threaded these anchors through the thimble loops at the cable's ends, drive them into the ground with an impact ...

Screw the 4x4 footings to the bottom plates, then nail on the plywood base. Cut and screw ... large fender washers so the shed can move up and down when the ground freezes and thaws.