My first attempts at blueprints, so possibly something might have went wrong... 
Staircase ramps here, in two slopes: 30 degrees (actually ca. 31) and 45 degrees. I tried to follow the real world guide lines for staircases, which tell that
2 * step_height + step_depth = in the range 61 ÷ 64 cm
In fact, for the 30° slope the result is 65 cm and for the 45° slope it is 60 cm, which are reasonably near. Each comes in 4 variations:
Internal: assumes to be between two walls
External with a wall in the right
External with a wall on the left
External with no wall at all (you will need to break some piece to open the access to the staircase where you need it)
The presence or absence of a wall affects the shape of the banister. All staircases raise by 6 block, equivalent to the common 3 m floor height.
Also, I tried to use colours and materials as neuter as possible to suit different styles and contexts; I believe they should suit almost any house style, except the most rustic ones. For banister 'legs', the most common practice, at least in my area, is to use a darkish green; as the only available green was too bright, I opted for black.
Hope someone fill find them useful.
30° Slope
