how to make "stair posts" stable??

[imported_peter]

I am going to build steps for my porch that, in general, should look like the picture shows. I am a bit stuck on how to make the posts that stand on the ground stable. Does anyone know if you can do this: cast two concrete footings with post bases in them, place a 95x95 post in them, and then attach the stringers to them with through bolts or lag screws. The railing and handrail also attach to the post, which should make it a bit more stable.

Will this work? If not, how should it be done? You can't really use guy lines... and you want it to be stable... thanks for now...

 

[MathiasS]

Let the vangstycken rest on your cast plinths, screw the posts to the vangstycken with through bolts.

 

[Kurtivan]

You can also let the upper poles by the surface go further down and then attach the lower end under the surface, so that it forms a trianglarunder. That makes it very stable sideways.