It will be mostly rather less than a full floor height from the ground as the ground slopes up slightly, we are also aiming to add a staircase which will probably only have a 4ft or 5ft drop.
The balcony will probably be either 3 x 3 metres or 4 x 2 metres (with 2 metres projection). Thus we will need two posts to support the outer corners and RSJs (probably) to support the decking/floor of the balcony.
What I need some help with is the sizing of RSJs (either two 2m ones and a 4m one or three 3m ones) and the sort of footings/piles we need to support the posts.
I *think* the most suitable supports for the posts would be screw piles of some sort or other but I'm willing to look at alternatives. Does anyone have experience of this sort of thing?
Then where do I find out what sort of size of RSJ is needed, no wall load on them, just some 'floor' and people.
Any help such as pointers to sites with information would be most welcome.