On the left you can see where the door currently is. I'm rebuilding the supporting structure of the longer wall, and here you can see where the door and windows are going to be. In the middle of the rear wall that aluminium stair takes to the entrance of the attic.

Today it started to rain water, and I covered the whole wall with a plastic tarp. Next step will the structures of the shorter walls. They should be easier as they are not going to have doors or windows, just plain walls.