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Blender beginner here, I want to add some stairs to the front of my model and my initial thought was to subdivide the currently flat staircase face and then translate every second edge running down the face so that it forms a staircase. However the only way I know of doing this is to use ctrl r and loop cut the entire model which would create numerous unnecessary polygons on the rest of the model. My question is: Is there an alternative way for doing this which doesn't create so many polygons, while keeping all of the stairs evenly spaced? Thanks in advance for any help!

Paint Diagram

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    $\begingroup$ Maybe model them as separate object? Or this isn't an option? $\endgroup$ – cgslav Sep 5 '17 at 13:28
  • $\begingroup$ I would go with @LukeD 's suggestion. Note that even if you use a method that will create ngons, Blender will still create supporting tris. Ngons are only for human benefit, once you go to render it or export it, all the geometry that you wanted to avoid will still be present. $\endgroup$ – bertmoog Sep 5 '17 at 14:19
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Yes you can, by creating "n-gons". Bad for topology, usually but it can be done like this:

in edit mode select just the side edges of the slope then subdivide them enough (use edge tools > subdivide - CTRLE):

enter image description here

you get edges subdivided as you want along their length. Now activate vertex snapping, and in side mode select vertices like this

enter image description here

then (with all those vertices selected) grab them along global Z and snap to their bottom unselected vertices

enter image description here

then do the same but on global Y with their upper unselected vertices

enter image description here

you get this in the end:

enter image description here

of course this is just a simple example...

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