i have a standard 6x8 shed, beefed up
1. door frame replaced with standard 5"x2" door frame, coach screwed to another frame of 3"x2" on the other side. Normal heavy paneled door with very large padlock and staple, and four hinges with all screws hidden. Chainsaw woudl be the only way through.
2. Window covered in 1/2" wire mesh inside plus fold down shutter, locked in place .
4. all panels, including roof coach screwed together internally, and entire thing coach screwed to floor.
5. floor built of raft of pallets with two layeres of strip panelling at right angles to each other.
6. All steal able items inside loosed chained together with havy chain and large padlock.
7. Both padlocks are anti-pick and cant be forced open.
You will need a petrol chainsaw and 48" bolt cutters and a truck to steal my stuff. Anyone with any sense will give up and hit another shed .