I'm building a coop and need some advice on anchoring it down.It is 4x8. I poured 4 1'sg footing and the wind flew it over.Pulled the footing out of the ground.It is a shed type roof and 2x4 framind with 3/8 ply. siding. I'm thinking while it's on it's back is to cut a foot and a half off the bottom. That would make it 6 1/2 in front and 4 1/2 in back. Maybe not being so hi might help. We don't have these strong winds very often,But it has to withstand them if it happens. I really want to keep the dirt floor. Maybe a full lingth fondation on the sides. Don't know HELP Don in Sacramento Calif.