Thanks for your thoughts guys... I'm really pleased, as is my neighbour who has been on holiday for two weeks and returned to find it built. I have hammered in over 15kg of nails in two weeks and have had to have my signet ring cut off today as my right hand has swollen up badly... the lady in the shop compared my hands and said my left hand was also swollen... I told her my right hand was swollen with hammering and, the left was swollen because I'd hit it that many times with my hammer. Anyway, yes the boards are treated but will also be painted with Cuprinol decking stain to match the other timber structures in the garden.
I have completed the back gable today and have incorporated a small first floor door, to house long items like my ladders and, I've also built in an owl nesting box... As for my B, we went to Alnwick today which is a pretty market town in north northumberland. Whilst the rain held off, it still isn't 'top down' weather here. I did see a Dutch Mazda MX5 on the A1 with, what looked like a motorbike type box, which had been painted to match the car, mounted on a boot rack. Could this be the solution to the limited boot space?
Steve