yes, i will check when i purchase the roofing material on the batten spacing. I have considered running the main supports the other way and am working on a second drawing to try and see if it would be a big savings in timber, currently the design above calls for about 2.5 m³ and i will post pics of the alternative one when i finish it but will also consider how the upright supports will restrict internal storage space on the high side and i dont thinkg there will be a substantial savings in wood but will check
yea, i will add timber around the chimneys, was just saving time in case someone mentioned that my design was complete rubbish and i had to start over lol