Trouble modelling a staircase

[Victor4]

Hello!

I would greatly appreciate any help. I have trouble modelling the staircase from the image. I can't figure out how to model the two triangular treads next to the landing.

Greetings

[Jeff Galbraith]

I'm not sure that's possible.  I'd have to play with the stair too.  Is that configuration compliant with building codes in your area?  I'm not sure that would be allowed where we practice. 

[Victor4]

Thanks for answering! This staircase is compliant with building codes here (for a single family house). I'm in Eastern Europe.

[huckk · Accepted solution]

Had to do something similar once. Ended up modelling each section to get the result I wanted.

I'm surprised making stairs like these are so hard, with all the love concrete and rebar has been getting in the later versions.