Yop, would you advise going with pine or with a hardwood, I got a quote of EUR7k for hardwood supply and fit incl treating (33sq m decking raised 2-3ft with 10 sq m decking on vertical side with double steps, a wheelchair ramp and 15 mtrs of handrail), i.e. 43 sq m decking plus waste.
I know this is very expensive but is it the sort of thing that could go wrong in a few yrs if it is not done by a professional? e.g. bouncy boards, unstable footing?