Eli5 why aren’t 2 story houses built with ramps instead of stairs?

Question

Are they just not practical? They seems cheaper to build instead of elevators for wheelchair bound people.

In: 0

Answer 1

for a ramp to have the same height as an equivalent set of stairs while taking the same space in the building’s footprint it would result in a ramp that is too steep to be usable(safely).

this is especially bad because the main uses for ramps in building are for loading/unloading cargo(so you would need to handle very heavy loads that for some reason a freight elevator cannot) and for wheelchair accesibility(where you want it to be possible for the user to push themselves up and go down the ramp safely.), for this purpose ramps for buildings are generally no steeper than 1:12(one unit of height requirirng at least 12 units of lenght) and if your ramp is too tall overall youll need ot build it with # landing areas”(flat ares somewhere along the lenght of the ramp where you can rest.)