The dimensions of the staircase are based on valid standards.
The number of steps depends on the height of the ceiling.
In the case of interior staircase, the landing should be every 16 to 18 steps.

Attention:
Watch the video how to create a staircase. https://www.youtube.com/watch?v=UWzB9yl5WGo 
File includes helper points, that ensure easy model folding
Zip file included special 3dsMax file with uncollapsed modifiers, for better handling.

Steps are divided into logical elements that can be composed using helper points.
From the elements it is possible to create any high staircase.

Staircase in preview
floor height 335 cm
riser height 16 cm
reiser depth 30,9 cm



Geometry and materials are also ready for closeup renders.
In the archive: .max 2015 files Vray, .FBX file, textures