Cheers Jazz ill look at the design again and take into account your comments...

This afty was finishing the shed off. Well nearly as got to go out in a bit so had to stop. Its all done apart from the boards on the roof edge at one end but as the boards need altering I've run out if time. Given it a coat of clear preservative so should be ok when it rains. Still needs another couple of coats to be on the safe side.