There's more truth to what you say than even you realise.... for starters that's valuable stuff here,plantation specialty timber.The other point is not many people make sheds like in your pic with timber frames here anymore Jon,the material cost reduced the incidence, the lack of work meant there aren't many qualified chippes or even framers pushing it up further in price. It's all pre-made steel trusses..... most of the frames will barely hold themselves up until they're clad.