I made it in order to replace the eyesore hotchpotch of sheddery that had been built by former owners of our house. Using a window removed from the house for an extension make the shed blend in beautifully.
Its built with a 4" X 2" frame, clad on the outside with pre-treated T&G board and on the inside with OSB sheets. As it was important for the roof not to look too industrial I use a coated steel strip system that looks very much like slate.