Dad and I worked on the shed this morning, it was raining badly, but we managed to put a sheet of ply on the roof and work inside the shed. We built the roof, covered it in ply and then put ply on the external walls. We built an overhang at the front as a feature. We then used some of the left over wood to create the floor, the wood is 8 inch wide by 2.5 inch think, so its not going anywhere.